<<

COMMUNICATIONS INSTR RADIOTELEPHONE PROCE 28 November 2016 28 ACP125 ( ACP125 UNCLASSIFIED UNCLASSIFIED G )

ACP UCTIONS

125 DURES ( G ) ORIGINAL

Uncontrolled copy when printed This ACP is to be isto maintainedThis ACP andwith theofACP. amendedprovisions inaccordance Itmake extracts permitted frompublication. is tocopy this or This publicationcontains milit Allied UNCLASSIFIEDpublication. CCEB ACP issued under common agreementnations. between themember Sponsoring all Allied Comm Authorityfor nations, Australia, Canada,Zealand, NewUnited Kingdom andthe andUnitedis States The Communications Combined 125 ( G ), “ Communications Instructions Communications - Electronics Board (CCEB) theElectronicsBoard iscomprised five of member

ary for official information purposes only. UNCLASSIFIED UNCLASSIFIED FOREWORD unications (ACPs). Publications areACPs and raised –

Radiotelephone Procedures i

”, isan ACP 125(G)ACP Original

Uncontrolled copy when printed E T +1 (703) 614 CCEB Permanent Secretary LT RNZN CDR, C.J. Mills For the CCEB Principals, authorities oforNAMILCOM. theCCEB All proposed tothepublication arebe amendments forwarded to coordinating tothe national whichsupersede 121(H), shallbeACP destroyedinaccordance with nationalregulations. (NAMILCOM)Committee for Strategic121(I) Nations NATO ACP and will Commands. 121(I)ACP effective receipt CCEBand is on whentheNATO for Nations directedby Mili communications facilities. promulgatedguidance, informationtheArmedForcesfor military anduseusers and by of other publication developed Allied use for and, u 121(I),INSTRUCTIONS COMMUNICATIONS 121(I)Promulgation ACP to implement istheArmedForceswithin CCEB Nations. ofthe ACP The purpose ofthis ACP 12 Publication [email protected] 5 ( G

)

CCEB L - 4684

Combined Communication Electronics Communication Combined Board(CCEB)Letter of

CCEB Effective for ETTER OF

UNCLASSIFIED P UNCLASSIFIED ROMULGATION FOR

nder the direction of the CCEB Principals. It thePrincipals. nder direction of theCCEB is On Receipt Date ii

GENERAL, isanUNCLASSIFIED

LOP Authority ACP 121(I)

ACP 125(G)ACP Original

tary

Uncontrolled copy when printed

Change Correction and Date Identification Changeof or

Correction RECORD OF CHANGES AN

Date Entered

UNCLASSIFIED UNCLASSIFIED

Name of Command (Signature ~Rank, Grade orRate & byEntered

iii

D CORRECTIONS

ACP 125(G)ACP Original

Uncontrolled copy when printed member ofonly netis messages another and ablecallsign relayed toreceive D381 from The connectivity following Note diagramstations. a shows thatcallsign B420 between is examples. Callsign Z34D istheNet Station. Control publication. The call are signs The the following netused inthe examplesthroughout organisation diagram illustrates this Spare callsign Net callsig A192 NET DIAGRAMS FOR EXA

n –

Y13C –

J32F C206

of types derived from ACP from of types derived D381 UNCLASSIFIED UNCLASSIFIED

MPLES IN THISPUBLIC Z34D iv

E969

121 and aresolely used tostandardise

ACP 125(G)ACP Original F178 ATION

H795 .

Uncontrolled copy when printed Example: oftransmissionsExamples publication usedinthis conform thefollowing: to Examples Transmissions of publication this Thedemonstrate following examplesthroughout verbalwithin diagramscallsigns that areused Net CallSign: RESORTPRIZE SABINENet Station: Control RAIDER ACHING MILL (78 Zulu (4D – 78 paragraph inparentheses. 611) are written Parts Prowords are case;written inupper and Callsigns are italicised;

OVER

– –

– THIS ISTHIS 4D

– of a radio call that mayof acall when radioomitted that using be (see abbreviated procedure

THIS IS)THIS

THIS IS)THIS

BRASSY OVER . OVEN

– –

(4D) (4D) – 78

READ BACKREAD –

– IREAD BACK

ROGER

CHALKY SIPHON

UNCLASSIFIED UNCLASSIFIED – –

OUT

Convoy has arrived hasConvoy

v

Convoy

RAIDER SABINE

DAMP has arrived LION

Time One Six ThreeZuluZeroTime One Six –

Time One Six ThreeZeroSix Time One HOLLOW PISTON ACP 125(G)ACP Original

MILKY ASHES

Uncontrolled copy when printed Chapter 2Security Chapter 1Introduction Contents of Table Publication this Net in Examples Diagrams for Record corrections changes and of CCEB LetterPromulgation ACP for of 121(I) Foreword List ofTables Net IdentificationCallsign Callsigns Address Groups Radio Appointment Titles Authentication RealNon or What Encode to LevelLow Codes Secure Nets SecurityAids to De Defence Analysis Against Defence Interception Against Security Transmission Comm Security ofInformation InterceptedInformation WarThe Radio Encryption Text ofPlain Tactical Codes Secure Nets Callsigns Protocols Voice Procedure Gene fence Against Deceptionfence Against ral

...... unications Security

......

......

...... - Exercise Traffic

......

......

......

......

......

......

......

......

......

......

......

......

...... TABLE OF CONTENTS ......

......

...... UNCLASSIFIED ...... UNCLASSIFIED ...... vi ......

......

......

......

......

...... ACP 125(G)ACP Original ...... 2 2 2

- - - 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 12 11 10

------iii ix vi iv

ii 9 8 8 7 7 7 6 5 4 3 3 2 2 1 1 1 2 2 2 2 2 1 1 1

i

Uncontrolled copy when printed Chapter 5Mess Chapter 4Discipline Chapter 3Accuracy Annex AtoChapter 125(G)Annex 8toACP Format Line 12(Text) Format Line 11(Separation)Format Line 10(Prefix) Format Line 5(Preamble) Format Line 4(TransmissionInstructions) Format Line andAnswering) 2and3(Calling Format Lines Schematic Di Message Format ofClassification Serviceand AbbreviatedMessages Service Informal Messages Abbreviated Service Message ServiceMessage Codr Abbreviated Plaindress Plaindress Radio Logging Rules RadioDiscipline for General ofProwords andtheirList EquivalentOperating Signals or Prosigns Pr ofHandwritingLegibility BrevityAids to Rules Mixed for Groups Rules Numbers for andFigures Encrypte Rules Spelling for AccuracyAids to Speech Technique General Veiled Speech ocedural Signs (Prosigns)ocedural Signs (OPSIGs) Signals andOperating ess

...... d Text

...... ages agram of Message Formatagram ofMessage

......

......

......

......

......

......

......

......

......

......

......

......

......

......

...... UNCLASSIFIED ...... UNCLASSIFIED ......

...... vii ......

......

......

......

......

......

......

...... ACP 125(G)ACP Original ...... 3A .. 3A 5 5 5 2

- - - 5 5 5 5 5 5 5 5 5 5 5 5 5 4 4 4 4 3 3 3 3 3 3 3 3 3 3 3 - 10 10 10 12 ------1 6 6 4 3 2 2 2 2 1 1 1 1 1 2 1 1 1 1 8 8 5 4 3 3 2 2 1 1 1

Uncontrolled copy when printed Chapter 6Operating Rules Closing Down Closing Electronic, Silence RadioandEmergency Rebroadcasting Break Verifications Acknowledgment Messages of Receipt READ BACK DO ANSWER NOT Transmissions Cancelling Messages CORRECTIONS Checking the G Repetitions Relay MessageLong Procedure aMessage Transmitting Preliminary Calls Delay Strength andReadability Report Radio Checks, StrengthandReadability Signal Dele Directed andFree Nets Directing aChange inFrequency WorkingJoining a Net Authentication Abbreviated andProcedure Callsigns aNet Establishing and/orSequence Signs Address of Call Groups Ge 16(EndingFormat Line Sign) 15(FinalFormat Line Instructions) 14(TimeFormat Line Group) 13(Separation)Format Line neral gating andAssumingNet Control gating

- ...... in Response In Procedure ......

......

......

......

...... roup Count

......

......

......

......

......

......

......

......

......

......

......

......

......

......

...... UNCLASSIFIED ...... UNCLASSIFIED ......

......

......

......

...... viii ......

......

......

......

...... ACP 125(G)ACP Original ...... 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 5 5 5 5

------6 6 6 6 6 6 6 6 6 - - - - 40 37 36 34 33 32 30 28 28 27 25 23 21 18 18 16 15 14 14 12 10 11 11 10 10 ------8 7 6 5 3 2 1 1 1

Uncontrolled copy when printed Table 13 Table 10 Table 8 Table 8 Table 8 Table 8 Table 8 Table 7 OFLIST TABLES ProceduresChapter 9 Reporting for Enemy Contacts Chapter Procedures 8Miscellaneous ChapterMethod 7Executive Examples EnemyReports of Contact Enemy of Transmission Reports Introduction BEADWINDOW Procedure Grid References Method Synchronizing of Time Cancelling Tactical Execution ofNon andRepetitionsVerifications Acknowledgement Signals of Immediate ExecutiveMethod Delayed ExecutiveMethod Executive Methods General ------5 Written, spoken orabbreviated spoken punctuation 5 Written, ofProwords4 Examples Pronunciation3 Example ofNumbers Figure2 pronunciation and 1 Phonetic alphabet Titles 1 Radio Appointment - - 1 Essential Element of Friendly Information List of1 EssentialFriendlyInformation Element diagram1 Schematic a messageformat of

......

...... - Executive MethodExecutive Messages

...... Messages

......

......

......

pronunciation

......

......

......

......

...... UNCLASSIFIED

...... UNCLASSIFIED

......

...... ix

......

......

......

......

......

...... ACP 125(G)ACP Original ...... 2 . .

8 5 3 3 3 3 3 - 9 9 9 9 8 8 8 8 7 7 7 7 7 7 7 7 7 10 ------3 3 6 6 3 2 2 1 1 1 1 2 2 1 1 7 7 5 4 3 1 1 1 1

Uncontrolled copy when printed 106. ProcedureVoice the nationalreview coordinator ACP to for thensubmitted examination by CCEB. the SuggestionsSignal foraresentthe appropriate welcome andto changebe for should School 105. individually orthe latter an methods, used excuse preferred as for ofproceduralexpertise. lack experienceguide. as be should a with used Standard be never procedure must substituted 104. Ifand speed,theconfusion. create and these Such proceduresaction can prohibited. security is reduce invalidate accuracy precautions, operating of as a part 125prescribedACPACP mandatory is all Allied inmilitary on tactical secure and insecure or single 103. 102. accuracy,needsand ofcommand control. and speed the standardized wayasconsistent speech traffic with andsecurely ofpassing as data possible Allied 101. General

nations onsecureand non a. The te The rulesVoice for P aprocedureShould not cater does for To ensure 125procedu interoperability, ACP c. b. a. Voice procedureisnecessary The toprescribe aim ofACP125is for voicearmedforces use of procedureby the

-

service radiotelephone Adherence proceduredoctrine. service tothe procedureprocedures rm Voice Procedure encompassesrelatedrm VoiceProcedure three elements: and the prowords data passage data nets the includes used for traffic. this of Protocol. two people the send result atischaos. onetime formSome overlap, of donot isneeded discipline if thattransmissions toensure constantelectronic threatenemy activities. of warfare Thean use important ofasec procedure is standard potential adversaries, used toprovide and radio signals location intelligence. beintercepted will transmissions Itby all beassumedand must analysed that to thosedire toassignexpedient than thepassage or traffic ofdata tologistic admin nets rather unambiguous.interference To avoid often speech itwill be and between data, Speechcongested clear, onaconciseand netbe battle voice must in

Joint ofCombined.Departure voicevariation in nets. to from,Joint orvariations

The rules The ofuse ctlyassociated withcommandand control. rocedure are frequently reviewed and changedrocedure areas frequentlyand necessary. reviewed - secure tactical voice nets. Its provide asecure nets. tactical voice purpose isto

INTRODUCTION because: UNCLASSIFIED UNCLASSIFIED

CHAPTER 1 –

how to start and finish ahow tostartmessage. and voice finish Onmixed a specific situation, common sense training and a specific situation,

1 - 1

res are toformofres all thenational foundation

urity against the measure

ACP 125(G)ACP Original

when when

Uncontrolled copy when printed communications peacetime, in requi agenciesof hostile toinformation passed over non torespond 113. Plain Text of Encryption 112. Tactical Codes and insecure nets. assigned variablecrypto for rules tothenet inuse.voice The procedureapply equally tosecure 111. voice accuracy toapply procedurecontinue and tomaintain avoid inorder confusion. 110. secure nets. 109. Secure Nets insecure be not obvious. should net in monitoring and searching nature,purpose fortraffic, the ofan and telltale composition all nets thesame sound toan intercepting o andpurposethe level ofthecomposition are ofcommand,net. Callsign systems devised tomake 108. Callsigns and data traffic. with accuracy, thetransmissionof message in voicedrills, thetime spent communications text 107. Protocols

The which variety in Allied forces ofoperations may involved, theability be or otherwise b. a. Used onnon Traffic passed a over net secure must Tactical be ona used need whensecure therules codes net; notto operating however, for Nets using approved on The voice seeks concealan callsignto whom,hence enemy system from whoistalking The publication are protocols this consistent in toreduce designed possible, wherever c. b.

another station. authenticityeither self through Authenticationmeans can tables; bytheirwhichevidence a aprovide of station Concealme protection fortransmitted over information insecure nets. secure some and thedegree tactical toprovide nets, codes ofcryptogr used Secure Tactical and Codes. Nets communications an station, onaradio organization, or an net. individual Callsigns.

- secure tactical toprovide: nets, are codes designed

Figures, orcombination letters, nt of exploitable text. nt ofexploitable

- line encryption forline equipment all tran

re and communicators levels commanders exercise at to all UNCLASSIFIED UNCLASSIFIED perator orconsiderable analyst.perator Unless time isspent not beclassifiedhigherclassification than the - authenticationas afrom or responsetoachallenge 1

- 2

The systems cryptographic employed to

s ofbothused toidentifya

- secure nets and thethreats nets secure and to smissions areconsideredsmissions

ACP 125(G)ACP Original

aphic protect

Uncontrolled copy when printed on theguidelines publication. given this in be andshouldnot judgement enciphered.as towhat should arrived at Decisions bebased should UNCLASSIFIED UNCLASSIFIED 1 - 3

ACP 125(G)ACP Original

Uncontrolled copy when printed indiscreetenemy language, aattempt useofto discover: will potential plain 207. decisions. sources, provide can toinfluence intelligence ofsufficient value significantly commandenemy 206. fighting capabilities of thecharacteristics various traffic enemy provide concerning the current withvital information 205. Intercepted Information enemy. availabletactical thenof theuse codes when essential transmitting is information considered equipment be encryption not secureShould theleast ofall ofcommunications. means 204. through oftraffic Finding analysis flowand patterns . Direction (DF) of available analysis. for even However, provideenemy intelligence an securecan useful nets 203. madeexpected inwartime tobe canbe immediate. be corrected at Thesecurity the onset immediately enemy ofhostilities. breaches to response Inferioroperations. and security operatingprocedurespractised during peacetime are unlikely to precautions wouldbe considered during training actions unthinkable exercises; that during net structures message by andsimplified taskis intercepted traffic. This relaxation of security the 202. intelligence against Allied used nations. ultimately evaluated signalhostile (SIGINT) by potentially intelligence agencies,the resulting and every radio impossible is and recording ofradio transmissions to detect beassumed orprevent,must it that of communication, particularlyfor However, elements. mobile as interception theunauthorised 201. War Radio The

a. Whether from security direct indirec of breaches orthe provision Intercepted information analysed once and withdata existing correlated other from ofAlliedinterpretation radioThis constantmonitoring and thestudyand communications Non Employment of During a peacetime, future The traffic range, efficiencyand

- transmission made during training exercises or on operations will beintercepted madetransmission during trainingor will exercises onoperations and secure ii. i. TaskBattle: OrganisationOrderof or

nets provide the most substantialthe most information for analysis andnets are provide therefore .

Radio netlevel, and function. composition structure.Command on

- line encryption significantlyreducesline theamount ofinformation

adversary will patientlyadversarywill long conduct UNCLASSIFIED UNCLASSIFIED CHAPTER 2 capacity modern excellent provide method of an SECURITY

2 - 1

- t clues through the term

ACP 125(G)ACP Original

analysis ofallied analysis of value tothe

Uncontrolled copy when printed instructions. This includes cryptographic security are details which contained cryptographic of innational protect order in allaspectsofcommunications todeny and intelligence to anenemy. information 211. Communications Security ability t priorities of securityspeed and are tobecarefullyweighed theenemy’s andagainst balanced 210. period of 209. is detailed at para oninsecure transmission guidanceits Further radio. term anenemy beencoded, nature inwartimewhenever likelytoassist should possible, prior to 208. Securi

ty of Informationty of Communications SecurityCommunications isthecollective for title taken(COMSEC) themeasures to Each becarefully must transmission therisk considered rival and calculated. The Once has information beeninthe sensitive clear,guaranteed transmitted there isno Whether transmitted during allinformation trainingofa oron orshort long operations, d. c. b. o intercept and exploit the transmittedo interceptinformation.and exploit

safety and it must besafety and must assumed it thatenemy reaction be will immediate.

iii. ii. i. EffectivenessCombat iii. ii. i. Intentions iii. ii. i. Locations iii.

.

224 Standard of discipline. radio Damaged vehicles and ordefectiveequipment. ships, Casualties. Movement. Tacticalgroupings. Operations plans. Location andheadquarters. of command ships Areas operation. of Formation and unit andunitidentities. Ship .

UNCLASSIFIED UNCLASSIFIED

boundaries.

2 - 2

as to what information should beas should encrypted towhat information

ACP 125(G)ACP Original

Uncontrolled copy when printed achieved if the following protectiveachieved following measures are taken: ifthe 215. standard receivers do. remember intercept that are receivers designedweakergreater toreceive signalsdistances at than 214. command function decided at the highest level. 213. Defence Interception Against deception: measures radio Allied toprotect designed tran 212. Transmission Security

b. a. defenceMaximum enemy against Direct interceptionand No The an Control use part Emission ofradiooverall is of (EMCON)a is policy and c. b. a. Transmission Securityisthat componentwhichincludes ofCOMSEC all (TRANSEC)

radio be can transmission regardedItas interception. safefrom important to is iii. ii. i. use ofradio,as: such known SIGINTAnEMCON onthe planwillscalable impose restrictions threat. CONtrolEMission (EMCON). radio thenbe to enemyto beattained. interceptionis radio The of allow silence not lifting does lifting radiobe must rigidly the silence toif protection adhered provides it against various ph and as suchoperations staff silence mayduringall directradio stations by some or silence.Radio to deceivecreate or confusion. communications syste Deception. intelligence. communications electronic traffic forand obtaining thepurpose transmissions of Analysis. information. radio electronic for communications and obtaining thepurpose transmissions of Interception.

restricting frequencyranges, usable powerrestricting outputs, maximum lengths,limiting transmission

Analysis and istheexamination interpretation ofintercepted radio ases Instructions ofbattle. and proceduresfor and imposing, breaking

Deceptionthe introduction isof a a into transmission false

Interception istheact listening ofsearching for, toandrecording

The best defence and interception DF against nottransmit isto

used indiscriminately.

m, by withthean intentiontransmission, m, imitatingauthentic UNCLASSIFIED UNCLASSIFIED

smissions from analysis enemy interception, andsmissions 2

EMCONenforced may be toa inresponse - 3

ion Finding (DF) canion Finding (DF) be ACP 125(G)ACP Original

Uncontrolled copy when printed and any resulting intelligence lessreliable: 216. D efence Analysis Against

a. The followingbe should takenenemy measures torender traffic analysis difficult more g. f. e. d. c.

brevityto divulge call theinitial but,used theneed each without callsign in to exceptional, unavoidable ci multi and level size composition, For of a thisreason,allstationcalls net. and large more potentialin and answering. Calling acceptable tothe originator. radio, orroutine particularlyfor a traffic delayed bulk where response is dependent as lineorcourier, such shouldalways onradio, be used inpreferenceto Al Use of non occursan unpredictable at time. are over tobeinclear never passed beshould encoded passedby means or secure Whenever .Changing recipientmayad messagerepeated adata infinitum. be danger acknowledgementautomatic received is isthatunlessan from the intended Measures toavoidthecontinuous betaken must minimisewill transmission and time reduce DF. vulnerability and tointerception message drills,combined procedureand withgood communication net discipline, unnecessary requ transmissions Procedure. be applied todata transmissions. alwaysshould during released should The be principle inprocedure. pauses same whenever with theprow possible, terminated interceptIndividual notexceed should transmission 20seconds andDF. and, Transmission Length. tuning and be should testing reduced minimum. toanabsolute acknowledgements.checking Thecommunications and of associated toessential addresseeslimited avoid only unnecessary and toreplies alternative arecommunication available.Calledbe methods of should stations beshould carefully ofte is considered; radio unnecessaryAvoiding transmissions. v. iv.

- secure radio. - station calls are unduly detrimental security; use to be should confined their radio silence. and prohibiting antennas propagateofenemy that inthedirection receivers, ternative Means of Communications.ternative of Means

possible, onnon possible,

Poor procedure can increase transmission time and time procedure causePoor can of transmission increase a series

telligence thereisavailable analyst toan the decide to

Changing frequencybreak can interception. continuity of The themore longer to avulnerableitis transmission UNCLASSIFIED UNCLASSIFIED

The stations included inathe greater of call, thenumber -

secure tochange nets, theinstruction frequency rcumstances. Collective calls haveadvantage of the esting clarification. Strictadherenceesting clarification. tocorrect 2

- 4

The necessityforradio each transmission

n used habitually n used adequate when ord OUT. The push to talk button OUT. Theord talkbutton pushto –

this is important when is thechangethis repetition of datarepetition messages

Methods ofcommunication not

ACP 125(G)ACP Original

the

Uncontrolled copy when printed secure accordancewithnational reporting in means procedures. 218. normally particularly DF purposes, silence for radio force. when isin taken toidentifyand counterfeit made ignore transmissions answering solely calls, tosolicit urgent tactical are particularly matters methodofattack. tothis prone carealso Special must be useforits time ofwar to 217. Defence Deception Against

Whenever be should deceptionrecognized, reported is orit suspected, immediately by An enemy deception rarely will attempt during butalmost exclusively peacetime, reserve f. e. d. c. b.

specialist items ofequipment beavoided. must clea anonymous. never must personnel, be names The of transmitted orunits in ships unitandexpectedship or role.its aim ofeveryremain The userradio shouldbe to analyst,aidedcomprehensive by a recognize their filingsystem,to an individual, Standardisation. frequencies be must avoided. Linkageenabling orcompromisecontinuity betweenoperating oldandnew against ifthe security and they value be protection isnotto compromised. offer tacticalaids forbiddenbeconstantly othermust is and codesguarded security or Compromise.Avoiding ofexploitable contain should theminimum transmissions plain language text. Ideally,an analyst classified. use becomes withthe sensible appearisolation when but other information innocuous assembled similar with by also bemadeand encode toidentifyplainlanguage information that may in bemust encoded ove transmission prior to Plain Language. action. that Allied forces can enemyappropriate takecounter knowthe force positions, knowledge ofAllied tactical language, or withthe otheranalyst’s same ineither combined messages, the isoftendue This positions. tothe inadvertent ofassociated plain disclosure an ana informationsensitive sent over radioarean source intelligence; unrivalled and of Locations. overall isreduced. time transmission denyingaddition to theanaly callsigns be entirely should omitted demand unlesscircumstances the identities ofthe callingcalled and been have stations established, satisfactorily omission. Callsign groupingand identity. excessively, answering soonprovidetheir subsequent will theanalyst calls with r. Unique personal expressions or mannerisms, jargon ormannerisms, personal expressions andr. Unique mentionof lyst can invariably relatelocations friendlyenemy to canlyst unencoded invariably forces’

ensure impact. Unsuspecting preoccupied maximum with stations

Locations, whetheran adversary, Allied orthose are of themost

Plain languagePlain obviouslyan nature sensitive information of Idiosyncrasies andenabl ofoperatingtechniques speech

A fter initial calling and have answering and calls made been

UNCLASSIFIED UNCLASSIFIED

Plain languagePlain referenceto callsigns,groups, address

doctrine. Furthermore, andoctrine. enemyaware commander, st useful repetition confirmation and st useful ofcallsigns,

2 - 5

r non

- secureeffort should Every radio.

of vocabulary codes,of vocabulary ACP 125(G)ACP Original otherwise e the e . In.

Uncontrolled copy when printed to securityare: notdeceiveintentioned, will a cryptanalyst;only arecodes authorised officially to 221. dangerously Abuse ormisuse ofsecurity quickly aids will correct a thorough understanding potential use.Thisrequires their limitations. oftheir andalso degree ofand security period by afforded protection aids greatly theseis dependent ontheir 220. toSecurityAids 219.

g. f. e. d. c. b. a. Unofficial, locally codesadaptation officialwell designed orhowever of codes, Thereare whichconsiderably canenhance proceduralaids transmiss d. c. b. a. The enemy bestagainst defences dec

instill

Callsigns. groups.Address Nicknames. Codewords. Authentication. Authorised low Secure Nets. contribute significantly combat survival andeffectiveness of to time war. in requirementgood apparent practices authentication will for less is training, in but help protect nets decep Allied againstcommunications enemy Authentication. necessarily net onthesame frame. orwithinasimilar time be enemy,cause can useSubtle ofpreviouslyrecorded ofAllied nets, transmissions by played back an in procedure,speech ofdubiousorigin. unfamiliar transmissions and unexpected Cons operation procedures. inconspicuous, which ismainly ofAllied dependentknowledge onenemy Procedures.Good voice torespond. plain voicefr may a mimic generally arethat all stations safe toassumeHowever, authentic. an using enemy against deceptionexcept wherea as, has friendly been is station capturedit intact, Secure Nets:

a false sense ofsecurity. tant Vigilance.

Employment ofsecure an is Employment excellent defense equipment voice -

level codes.

The authentication correctauthorized systems andtimelyuse of

confusion and these endangerconfusion may Allied troops; not

The success of enemy deception reliesenemyThe ability onits success deception oftoappear

Radio users and operators must remainRadio usersmust and alert operators irregularities to

UNCLASSIFIED UNCLASSIFIED iendly station in order to luretoplain order toswitch iendly stationin stations to

eption are:

counter their securityequally and, value 2 - 6

ACP 125(G)ACP Original ion security. The tion. Thetion.

be used. Aids be used.

Uncontrolled copy when printed upon tojustify decision. their discretion o will transmission prejudicetext security atthe its themessage plaintext then sent may in be byor parts prejudicemore a of encoding message, a thanthe theoperation message,will plain 226. HQ. unprotected shallbepromulgated means at of therelevant discretion Allied/theatre/command counterguidance attack.Further Policy may about may what notnormally be or sent by hand, during a a“warningkey lull, be order” the may tothem dis heatof no ofbattle, “orders”commonplacesignificance may andan be enemy; to onthe other e indicationsof intentions.Such include “warning orders”,before”,etc. “no “orders”, Their move includesit locations and timings, assemblyshipandunitstates andareas, lines, indications start way can (enemyresponseexpecte be time 225. following questions: particularMilitarycircumstance. judgement beexercised must toanswer inevery case the guidancehard and what fast information other transmittedmay on inany exploitable be 224. toWhat Encode bemethods should used. and time When circum tactical operation speed information of where andare theoverridingconsiderations. simplicity 223. Level Codes Low wherever possible. 222. Secure Nets xploitabilityaccording be atthetime. totheFor must judgedtactical situation example, inthe

All exploitable text must All exploitable be encoded is Exploitablethat which text provides for useful an information touse enemy inatimely b. a. Apart from desireddescribed theinformation at para by theenemy Lowareprotection security codes level for toprovide sensitive designed short Secure againstprovides analysis thebest equipment voice defence i. h.

f the originator; however,must understandf the that originator; originator they the be called may

How might the enemy exploit the information IHow the information might exploit the enemy abouttotransmit? am traffic? How muchinformation am Veiled speech Net identification signs.

stancessecure systems communications permit, oralternative physical

UNCLASSIFIED UNCLASSIFIED d to be as little as as a little toour fewd tobe disadvantage; minutes) I preparedtolet the enemy myradio obtainfrom whenever the situation permits. If permits. whenever situation the delay the imposed 2 - 7

covering the time and time placeof acovering the . and should beused and should

207 ACP 125(G)ACP Original , there can be, therecan no

- term

Uncontrolled copy when printed 230. applies: 229. fraudulent made transmissions by unauthorised pe Authenticationa is security communicators Allied aid designed being toprevent by deceived of making orders,falseeliciting information or tocreate reports important confusion. 228. Authentication AtoChaptermeaning ofprowords list 3. at inthe Annex isdefined highlightbetween PLAY messages, Its realtheprowordNO the differences andother isused. to ensurenot unduly theurgency thatsecurity such prejudiced by issituations. of realasMessagesexploitable any with care as associated activityand are just other be must taken require action the outside 227. Real orNon

a. usingWhen reply challenge and authentica i. h. g. f. e. d. c. b. a. Authenticationonly is onnon used An enemy deceive by may attempt to operators a friendly imitating In todifferentiate exercise which training,events, play thereisaneed and between

- Exercise Traffic Stations areStations be notto challenged unnecessarily. transmittingWhen amessage classified non over inclear transmittingWhen toastationunder radio silence. down or changeaused. frequency nicknamewhere isnot the operation ofsuchas thenet, relocating un Transmitting instructionsthat affect ordirecting the tacticalto situation changes nickname used. isnot Imposing, breakingemergency liftingsilence radio or a or or when codeword language. reportingWhen enemy contact andtransmitting amplifyingr transmittingWhen theplain languagecancellation of a message. aWhen stationsuspectsfraudulent. thatatransmissionis temporary absence closure, of orperiods silence. initiallyWhen establishedan net joiningorresumi to achallenge). Inreply toachallenge thesole bebrokenfor purposeresponding (silence isnot of

context ofthecontext exercise; conventionallyasactivity. “real” known is this

UNCLASSIFIED UNCLASSIFIED - secure nets and ismandatory thefollowingwhenever secure and nets 2 - 8 rsons.

tion, the following the be should tion, observed:

its ordirectingits close to stations

ngafter contacta radio

-

secure radio.secure station withthe intent station ACP 125(G)ACP Original eports in plain eports inplain

In to order

Uncontrolled copy when printed where are participants 238. thereforeorganisational concealing thelevel net. ofthe security branch,given Radio appointment titlesany are station. atare the notcodewords; and unclassified 237. AppointmentRadio Titles procedures 236. performfollowing: of either the colour. Nicknamespre have 235. 234. in connection withcommunications, other than electronic conditions of for silence. onceexecutive as only order. an Theymay therefore be sentclear. Codewordsare rarely in used issued by Staff. Theirare theOperations always meanings intendedand t classified are an are alert,oroperation.implementation ofa plan the ortoinitiate preparedand Codewords 233. 232. 231.

The use of radio appointment titles varies titles The between use services ofradio appointment nonetheless, nations; and A radio isa word appointment title usedindividual, by toidentifythe senior role or Due they protection totheused limited for provide, nicknames communications c. b. a. A nickname non oftwo distinct iscomprised Nicknames A codeword is Codewords Furthercontainedguidancepara is authentication at on e. d. c. b. protection conceal isto they and the provide rank ofthe personal identity appointment,

should onlyshould used once. be pronounce. toaAs a regularly substitute that placedifficult is wordname to or used the nickname, or Activatinga shift closing down, Activate procedures communications suchasorlifting imposing or silence, sho Afterchallenge completion ofand procedure,thechallenging the reply station A stationfailing toreplycorrectly be threeattempts isto ignored. A stationreplyinga challengebe incorrectly isto issued achallenge. to new resp fornew seconds challenge limit a (30 a time is stationto isissued reasonable be should given amountStations a oftime toreply limited challenge before toa a uld besubject a to counterchallenge unlesstheir authenticity isknown.

ond toachallenge). comfortable operating intheirare use,authorised combined they for a single word with aa pre singleword

-

arranged meaning and arecommunicationsand staffarranged meaning issued by to

if frequency where thetarget ispre frequency UNCLASSIFIED UNCLASSIFIED

- 2 arrangedmeaning, toestablishacondition, used - 9

- associated w

.

619 ords, neither of which of isa ords, neither .

ACP 125(G)ACP Original - associatedwith

o be used

Uncontrolled copy when printed disguise a 240. Address Groups appointment titles: appointment they toreport that The followingtheapproved are lists at the handset. table request the the commandergivenat Prowords station. used any inconjunction are(title), usedFETCH to 239. (title) (title) MINOR METEOR MANHOLE KINGFISHER IRONSIDE HOLDFAST HAWKEYE GLOWWORM FOXHOUND FORTUNE FIREGUARD CRACKER COFFEEPOT CONTRACTOR CONROD BOXWOOD BLUEBELL BASEBALL ATOLL ACORN Title

An addressgroupa unique,dailygroupchanging offouris used to random letters The commonly most radio isSUNRAY which used appointment title isused toidentify

command, formation, unit orsub command, unit formation,

relevant appointment tothe handset,relevant and(title) appointment SPEAKING by used requested the

Armour Engineers Army Aviation Naval Aviation Officer, Ground Liaison Officer Infantry (Ground) AirForward Controller representative Ground Defence intelligence staf (includes Artillery Artillery Locating staff representative Philanthropic or welfare Movements staff DefenceAir Chemical staff Nuclear, Biological and Engineers Electrical and Mechanical Marine Engineers Army / Direction Officer Air Traffic Controller Air / operations representative Transport support Intelligence staff Appointment appointment second Used to designate the Meteorological staff Administrative staff LiaisonAir Officer - most senior

Table

representative

f)

2 -

1

UNCLASSIFIED UNCLASSIFIED

Radio A

-

unit. unit. groupsAddress are when classified connected

2 - OFFSET NUTSHELL NOMAD MOONBEAM MOLAR Title WATCHDOG VESTMENT SPYGLASS SUNRAY STARLIGHT SPINDLE SHOTGUN SHEPHERD SHELLDRAKE SEAGULL RICKSHAW RAVEN PRONTO PLAYTIME PELICAN 10 ppointment Titles

representative Offensive Support Operations Quartermaster staff Navigation (XO) Chief Staff,of Executive Officer Logistics Officer Staff/ Appointment Shore PatrolShore Military/ Police ContactAir Officer ReconnaissanceAir Commander Medical AirForward Controller (Air) Armaments Officer Chaplain Gunnery staff Artillery / Operations Staff Ordnance Supply / EW staff Signals Ground Transport representative Army Transport Air Support

ACP 125(G)ACP Original

Uncontrolled copy when printed manner. precededCALLSIGN by theprowordADDRESS or relevant addressgroup Callsignsgroups be infull. callsign should and or secureaddress and orshipnames unit appear orshipsname be the inunencryptedunit isto replaced text, by the 246. 245. incommunicationspossible betweenunlessconfusion arise will doing. inso twostations theabbreviatedestablished.TRANSEC, Asancallsign aidwhenever to be should dropped some callsign users toabbreviateonce have systemsallow callsigns communications b be droppedconfusionIn arise likely is unless altogether by sodoing. to different circumstances, 244. appropriate communicationscommand staff. HQ communications. The callsignan be system Allied to net usedbespecified on will by the an organisation, onaradioIts primary an or establish useand net. individual isto maintain 243. Callsigns of a formal message, 242. nevergroups qualified.Addressare used: 241. addressgroups. with their meaning.Allied theatre HQ determineThecommand will classifi or the

When secureWhen changing classified dailycallsigns and are used for c. b. a. Full callsignsare onthefollowing tobeused occasions: Ina conversation bet A callsigncombination of lettersidentify faci isa and communication figuresthat used,When addressgroups are component pronouncedexcepttheaddress phonetically in c. b. a. AddressUse Groups. of

requiredrelayed toastationondifferent tobe net. In instructionsand addresscomponents when thetransmission a messageis reportingWhen established net. a into previous firstWhen establi headquarters. addressgroup ortothewhole for is allotted, To refer, and asheadquarters context required, by implication towhich the callsign. As awhen for temporarycallsign, anet which allocated stationjoins thereisno except whena referring stati to In addresses clearand names conversations place and of invoice messages,

ween two stations, after the initial call after twostations, and theresponse,callsignsween should initial shingnet. a Thegroups be use should and kept ofaddressa to minimum UNCLASSIFIED UNCLASSIFIED

on inthe same unitoronthe same net. 2 - 11

GROUP, as appropriate, when used inthis

mation, unit orsubunitserved unit bymation, that

unclassified messages,unclassified ACP 125(G)ACP Original cation of

een een

lity,

Uncontrolled copy when printed encoding the message. about the enemy’s isapoor knowledge, it aida security to location by cannot toan enemy. references be using becertain thatwouldnot known Asone 248. Veiled Speech their netdifferent when communicatinga toastationfrom net. 247. CallsignNet Identification

Veiled concealing speech istheact true of identityan the anactivitya event, of or A callsignallocated by net whichmayused toeach identity be aprovide the stationto of

UNCLASSIFIED UNCLASSIFIED 2 - 12

nd should not be used inpreference notbe nd should to

ACP 125(G)ACP Original

Uncontrolled copy when printed if transmissions areif transmissions successfully understood tobe atand received the first attempt. 302. Speech Technique constructed clearly and nottoconfusetherecipient. logically inorder beshould written down: even be notes should riskof brief reduce error. the Messages Allmessagestransmission. be should pre 301. General

b. a. Theequipment correct audio andclear, concise speech useof overradio the Voice procedureisdesignedtoprovide theaccurate andmost ofspeech fastest method

iv. iii. ii. i. (RSVP): Pitch Speech.Method of the mouthaspossible. speech enteri to cancel noise,gunfire, for surrounding noiseor exampleengine out allowing the incomingdouble signal. The preferable as a aidconcentration toloudspeakers headsetaudibility will and theof the useconditions, ofheadsets with a fitted noisecancelling microphone is Equipment. Audio Use of

conversationclarity. toimprove Pitch. b volume should Volume. unnatural,speech, haltedstyleof understand. isdifficult to which opposedgaps toaltering between willwords; thecreate thelatter an by increasing ordecreasing thele experiencingSpeed easily oftransmission is worst conditions. the adjusted shouldbeextra time allowed receiving tocompensatefor the station messagedown by be isto writtenrecipients, indifficult or conditions, the Speed. and time transmission tobreak permit stations inwhen necessary. Where pausespress the occur, maintain a na Rhythm. ng on one side to pass freely. The microphone should be as close to topassfreely.asng ononeTheclose be should side microphone

Thebe pitched voice slightlythanfor should higher normal

Speak slightly normal than for conversation. slower Where a

Speak quietly when using whisper facilities, otherwise quietlywhenSpeak whisper the using facilities, Use shortsentences intosensible phraseswhichUse divided

The keywords remember to are Rhythm,Volume and Speed, tural rhythm; theytural word notbespoken rhythm; by should word.

e asnormal for conversation.Shouting causes distortion. UNCLASSIFIED UNCLASSIFIED CHAPTER 3 ACCURACY -

planned, brief and straightforward. Ideally, brief andplanned, straightforward. messa In manyparticularly situations, ordifficult innoisy 3 - sided, noisecancelling microphone isdesigned - 1

- to

- ngth between ofpauses phrases, as talk should be released to minimize betalk should tominimize released

ACP 125(G)ACP Original

are essential

ges

Uncontrolled copy when printed should beshould and spoken beforeafter the spelling identifyword. tohelp the byIf SPELL”. theproword “I and ispronounceable isadvantageous the it word doso,then to it ofplain languagethe text messages usi may be spelt angroup,word obscureagroupsword,words or isunpronounceable. or or of Such which within 306. Spelling Rules for syllables in areas shown pronounced 305. make theletters distinctivelyaudible. is spoken. Thewords portionof underlined tobe thespoken indicates syllables 304. phoneticB equivalent letter and equates tothe of the DELTA letter D. pronounced toenableconsistent and BRAVO word accurate pronunciation. example, isthe For phonetic word used.Each alphabet is alphabet of therepresented letter is bya uniquely 303. toAccuracyAids 5 4 3 2 1 Figure M L K J I H G F E D C B A Letter

Plain Text. Pronunciation Figures. of P Pronunciation Letters. of honetic Alphabet. MIKE LIMA KILO JULIETT INDIA HOTEL GOLF FOXTROT ECHO DELTA CHARLIE BRAVO ALFA to be emphasized tomaketo bethefigures audible. distinctively Phonetic

TOO WUN Spoken As FIFE FOW TREE Spelling is necessary when difficult radio conditions prevent receptionSpelling conditions of whenradio isnecessary the difficult

-

MIKE LEE KEY JEW IN HOH GOLF FOKS ECK DELL CHAR BRAH AL

ER Table Spoken as -

- Table Table

Table DEE FAH - - - - MAH - LEE OH LOH TELL

- -

- - 3 TROT TAH LEE VO - - Table AH 1

- 3 3

To help letters identify stand ofthe alphabet a spoken Wheneverspoken insingle figures over are digits radio they Phonetic alphabet and pronunciation ETT

- -

2 1

. The underline portion words of thespoken indicates. The the underline shows the phonetic word equivalent of each letter wordshows thephonetic and equivalenteach as it of UNCLASSIFIED UNCLASSIFIED 3

- 2

Figure pronunciationFigure 3 - 0 9 8 7 6 Figure R Q P O N L Z Y X W V U T S 2

etter

ng theyalphabet; thephonetic are preceded

ROMEO QUEBEC PAPA OSCAR NOVEMBER Phonetic ZULU YANKEE XRAY WHISKEY VICTOR UNIFORM TANGO SIERRA

ZE NINE AIT SEV SIX

Spoken As

-

RO

- EN - ER

ROW KEH PAH OSS NO ZOO YANG ECKS WISS VIK YOU TANG SEE ACP 125(G)ACP Original

Spoken as

- emphasized to VEM ------TAH AIR CAH - PAH - BECK LOO - NEE - ME KEY - RAY - GO KEY - - RAH -

BER

- OH

FORM

ard

Uncontrolled copy when printed them from other similarlypronounced words. proword FIGURES. Thisproword warnsthat followimmediately, help figures distinguish to is necessaryavoid misunderstanding, numbe to of aDuring message as be innormalor when conditions, spoken speech. may difficult extracare 309. Rule Example: spelt phonetically theI proword without SPELL. 308. Encrypted Text letters arealways spoken 307. Example Example 50 23 Number

s for Numberss for Figures and When radio conditions are satisfactory and confusion will not arise, numbers in the text radioWhen are notarise, satisfactory inthetext conditions will and numbers confusion – Encrypted portion of text orportion of aWhen encrypted, text, is text groups and thealways letter figure are tobe g. f. e. d. c. b. a. rule this to Exceptions Unpronounceable group word or UNNA” Pronounceableword

IndiaF B A

: :

Encrypted text. groups.Address DTG zone suffix/SICs. Authentication. Target indications Grid references (UTMs). CallsignsIdentification andSigns Net (NIS).

oxtrot”.

phonetically theprowordIwithout are: SPELL Table –

(precedewith theI proword phonetic spelling SPELL) UNNA: …”UNUNNA:

3 . 2S BJ MW IF: MW BJ . 2S Sierra“Two …

Fifty Twenty three Satisfactory conditions -

3

Example Pronunciation

UNCLASSIFIED UNCLASSIFIED

UTFX: …”I spell, Uniform Tango Foxtrot UniformUTFX: …”I Tango spell, Foxtrot

NA

3 rs areprecededrs sent by figure figure by the - 3

-

I Uniform November Alfa spell,

of Numbers

– FIGURES five zero FIGURES twothree Difficult conditions

B ravo

Juliet Juliet ACP 125(G)ACP Original –

M ike

, when ,

X

- W ray hiskey ”.

Uncontrolled copy when printed Example Example Example different onthe circumstances. depending ways apply figures and separately. tosendingletters same in The 311. MixedRules for Groups figure) 310. 12000 2800 1630 hours 1009 200 146 Number

, when , when ACP 125 ACP groupMixed 125 ACP Mixed The letter/figure rules mixed forgroups sending incorporate thesame that principles f. e. d. c. b. a. rule this to Exceptions

B A

. .

numbers group Difficult conditions: Satisfactory conditions: encryptedWithin groups. text Formal groups (DTGs). date message time Authentication. pronounced as such). Target ofa that exact multiples hundred indications(except are ora thousand Grid references. Callsigns.

aredigit always theproword FIGURES without by spoken digit are:

spoken as I Charlie Alfa SPELL spoken as oneACP twofive

(theFIGURES precedes proword

Twelve thousand Two thousand eight hundred Sixteen thirty hours One thousand and nine Two hundred Oneand hundred forty six Satisfactory conditions

UNCLASSIFIED UNCLASSIFIED

3

-

4

Papa FIGURESonePapa twofive

formation may beformation senttwo mayin

sending numbers figuresending numbers by zero zero FIGURES one twozero FIGURES zero twoeight zero hours FIGURES three one zero six FIGURES FIGURES zero twozero FIGURES six one four Difficult conditions

ACP 125(G)ACP Original one zero zero nine one zero zero

zero zero

Uncontrolled copy when printed Examples whereExamples more thefull spellingis appropriate words than are: bedo so,orthe more spelling and received readily understood will than 315. Examples: Exam conditions: theyare be should Theapplied rules followingcommontotake used. sense account of unabbreviatedform, and depend conditions thecircumstances will radio onprevailing in 314. abbreviations in normalmore speech familiar are original than The they their form. use unabbreviated ofsuch abbreviations inspeech. often time save will abbreviations socommonly are Many in used 313. the givenThe radio conditions. operators concisethat is brevity observe must bylanguageand using understandable easily under 312. Aids toBrevityAids

ples: Abbreviations only oreasier should phonetically iseither it quickerand be when spelt to Recce(reconnaissance) better Echo than is “I Echo”. Charlie Romeo Charlie SPELL Dispatch Rider b. ETA as “ee IED as “eye asRV “ar a. Whether abbreviations are spokenphonetically their as such,spelt expanded to or c. b. a. To reduce of the transmissiontime ausers messageradioand conversation,radio or

full word than to waste time andfull word thantowasteeffort spelling. in time abbreviations as usually such,itis easier spoken normally and the quicker touse Conditions. Difficult theyabbreviationsnot lost, bewill provideisspoken as innormal speech. Satisfactory Conditions. tothe addresseeobvious orfrequentfrom context usage. its Where more an thanone abbreviation has meaning confirmatory transmissions. Theyare sufficiently knowntoavoid and any well subsequentconfusion Theyare touse quickerand thanthe easier fullword. Abbreviations. radio transmissions is tobe is encouragedradio that: provided transmissions

- vee” instead of “Ivee” instead of - - tee ee

- - Drop zone isbetter thanDeltaDrop SPELL “I zone Ro dee” instead of “I SPELL India instead of“I SPELLDeltadee” Echo Romeo”. ay” instead of“Iay” instead Echo SPELL Alfa”. Tango

Although originally inwriting, designed time tosave following paragraphs explain theaidsfollowing explain available toachieve paragraphs this. SPELL Romeo Victor”. Romeo SPELL

Inconditions which requireamplification of common UNCLASSIFIED UNCLASSIFIED

To ensureadvantage ofbrevity thatthe which

3 - 5

, the intended meaning is meaning, theintended is meo

Zulu”. the full word orphrase.the

ACP 125(G)ACP Original

which

Uncontrolled copy when printed abbreviations. 320. beessential,the useshould written it and ofpunctuation is Punctuationtransmission. messages. canwritten informal moreWhen occur orformal in often message, and rarely should be messages required inradio where makes theoriginator own his 319. 318. recognised usedtoconveya or specif phrases words standard inplace are prowords wholeareand used sentences.easily of Prowords pronounced 317. be speltphonetically. “Defensive “Direction thenDF Fire” Finding”; or themeaningsho if obvious intended isnot phoneticallyaddressee the tointerpret meaning. leaving DF the can abbreviation The mean as to t doubt exists abbreviations when conditions or can transmission difficult during a be Where simplified. any 316. Decimal point Question mark Semi Colon Right Left Hyphen Slant/oblique Comma periodFull / Stop Punctuation OUT ROGER Proword

-

hand bracket - - colon

hand bracket When writing,When symbols be always used punctuation should the inpreference to Punctuation. ofprowordsA full list given is at Procedure (prowords). words Where necessaryof behalf a thesender messagemay, ofexpand on common thedrafter, “I spellUnifor “ILubricants.Lima” spellPapa Oscar instead ofPetrol, and Oil “I Charlie” Bravo spellNovember “NuclearBiological instead of andChemical”.

This This is endthe of my transmission to you andno answer I received have your last transmission satisfactorily Meaning

he drafter’s never abbreviations should intentions, be expanded butspelt

m Tango Mike” Transversem Tangoinstead ofUniversal Mercator. Table Punctuation is not tobeused not isnecessaryPunctuation is unlessit tothe se Written as 3 - 5

Written, spoken orabbreviated punctuation Table

? ) ( - ; : / . , .

3 UNCLASSIFIED UNCLASSIFIED To keep voice transmissions as briefTo keep and transmissions voice clear as possible - 4 Annex A Annex

Examples of Prowords 3 - 6 Decimal Question mark Semi Colon Brackets off Brackets on Hyphen Slant Comma Full stop Spoken as

to this to this chapter. ic predetermined example. meaning, for - colon

, spoken orabbreviatedas follows:

is

required expectedor

Point Ques SMCLN CLN Unparen Paren Hyphen Slant CMM PD Abbreviated as

ACP 125(G)ACP Original

nse ofa

.

uld

Uncontrolled copy when printed Theyare introduced proword by the 325. tactical describe netsto any thatneedssuch significant as: be location to disguised, 324. when transmitted unencoded over radio. suchregarded codesat nosecurity be all,andmust provide as th Itcharactersandconsiderable save remember to howeverimportant time intransmission. is that commodityBrevity codes.stereotyped toafew reduce cancodes lists long sentences or equate toapredeterminedwords vocabulary standard example equipm orphrases, of for shortened ofbrevity throughor codewhich theuse Abrevity codes. letter, ofnumbers isalist 323. Examples: be writtenas infulland such: spoken 322. to beencoded usingas text abbreviated form the from 321.

Nickumbers have i. h. g. f. e. d. c. b. a. Nicknumbers. Brevity cod UNQUOTE QUOTE APOSTROPHE If thesense punctuation thanto they marks other thoseofthe are above vital text, are to Where lowgradenotsupport punctuation codessymbols, therelevant do abbreviationis

Counter Killing areas, or lines, Stop Report lines, Road junctions, Place names, Res Rivers, Bridges,

erved demolitions,

es.

- Messages transmitted inaset including format, may messages, Messages data be A nicknumber is a two figure group which mayA nicknumberisatwofigureforwardgroup be used on

attack / penetration areas.attack /penetration

NO SECURITY VALUENO SECURITY

NICK

UNCLASSIFIED UNCLASSIFIED

.

3 - 7

and areand Table

3 ALWAYS TO BE ENCODED BE ALWAYS TO - 5 . e equivalent ofplainlanguageequivalent e

ACP 125(G)ACP Original

ent and .

Uncontrolled copy when printed OPSIGS should military acodes (Z)for wide communications range purposes.prosigns used of Both and 328. Procedural (Prosigns) Signs strokes tobe ablethemqui towrite 327. and receiving messages: The for followingconventions writtenand characters sym accurately. are messagesfor incapital Allhandwritten transmission tobewritten drafted letters. 326. of Legibility

Prosigns are authorized OPSIGs abbreviations ofprowords, civil are(Q) threeletterand examplesofprintedThe tableletters below andas provides figures wellpen as suggested d. c. b. a. Legiblewriting handwritten if isessential messages arereceived transmitted and tobe

Handwriting Full and stops commas are ringed tomake conspicuous. themmore and TheZ letter iswritten w The witha figure line underneath distinguishfromL, 1iswritten to it the letter The witha figure slantthrough 0iswritten from todistinguishO, it the letter

be used to expedite radio logging. Annex A to this chapter expedite radio Atothis be Annex logging. used contains to the prosigns

and

Operating Signals (OPSIGs) ckly. ith ahyphen from todistinguish through it theith figure 2, UNCLASSIFIED UNCLASSIFIED

3 - 8

bols are tobeobserveddraftingbols are when

ACP 125(G)ACP Original

Uncontrolled copy when printed 329. Chapter 4of publication. this and OPSIGsrelevant radiotelephone to Radio logging procedures. inmore isexplained detail in

A comprehensive ofOPSIGs list

UNCLASSIFIED UNCLASSIFIED

is contained in ACP 131. ACP is contained in 3 - 9

ACP 125(G)ACP Original

Uncontrolled copy when printed SIGNALS LIST CORRECT CLOSE DOWN CLEAR CHECK GROUPS….. CANCEL BREAK (number) BEADWINDOW AUTHENTICATIONIS AUTHENTICATE ASSUME CONTROL ANSWER AFTER ALL BEFORE ALL AFTER ADDRESS GROUP ACKNOWLEDGE (ACK) Proword O

F PROWORDS

A Previous The group that follows is a callsign message text from portions other of this pointThis indicates separationthe of paraat (EEFI) corresponding the to EEFI list Element Friendly of Information Your station has disclosed an message is…………….. The transmission authentication of this challenge which follows The station called is to reply the to furtheruntil notice You will assume of control this net calls callsign……… when answering net The station called is answerto after precedes………….. am referring is all that The portion of the message which to I follows……………. am referring is all that The portion of the me group The group that follows is an address theirof message confirmto receipt and understanding The originator requires the addressee Explanation transmitted is correct You are correct, or what you have required indicated. Acknowledgements are Called stations are to clo excellent The quality your of transmission is number groups of received) have received (followed by the have me sent to does matchnot what I The group count of the message you ……….. cancelledis its in entirety ND

T

. HEIR EQUIVALENT PROS EQUIVALENT HEIR

806

ly transmitted message

.

UNCLASSIFIED UNCLASSIFIED

3A

ssage which to I -

se se down when 1

Essential

646 646 238 665 Para 659 680 633 649 657 241 531 806 619 619 628 622 IGNS

O R OPERATINGR ACP 125(G)ACP Original AB AA ACK Prosign/OPSIG C ZKJ BT ZNB INT ZNB ZKD ZGO

CHAPTER 3

ANNEX A

ACP 125(G)

TO TO TO

Uncontrolled copy when printed FORMAL MESSAGE FLASH (spoken 3times) FLASH FIGURES FETCH………. FADING EXEMPT EXECUTE FOLLOWTO EXECUTE DO NOT ANSWER DISTORTED TRANSMISSION DISREGARD TH CORRECTION Proword

IS –

OUT

reception cannot be relied upon ansuch extent that continuous At times your signal strength fades to call or from collective address (are)is exempted from the collective The station(s) immediately following Executive Method) beused(To only wit receipt of the proword EXECUTE. follows is be to carried out upon Action on messagethe or signal which Method) beused(To only with the Executive message signal or whichto this applies Carry out the order given in the withended the proword OUT) employed transmission the transmission. (When this proword is transmit in connection with this call, receipt this message, or otherwise Stations called are not answerto this signal distortion I am having reading trouble you dueto completely transmitted and receipted) cancel any message thathas been it. (This proword notshall be used to This transmission is in error, disregard verification. version answerin yourto request for whichThat follows ais corrected The correct version is………. transmission (or message An errorhas been made in this transmitted. continue with the word last correctly transmission. Transmission will An errorhas been made in this Explanation message you to I wish to transmit aplaindress format transmitto aFLASH message I am breaking Precedence FLASH Numbers follow to handset for a conversation. Bring appointment title………to the

UNCLASSIFIED UNCLASSIFIED - in to your to in conversation

h the Delayed 3A - 2 indicated).

shall be shall

633 656 653 Para 524 669 310 237 633 523 708 708 658

ACP 125(G)ACP Original EEEEEEEE AR C C ZFRor EEEEEEEE Prosign/OPSIG Z QSB XMT IX IX F

-----

Uncontrolled copy when printed LOUD LONG MESSAGE INTERMITT INFO IMMEDIATE EXECUTE three times) IMMEDIATE (spoken IMMEDIATE I VERIFY I SPELL I SAY AGAIN IREAD BACK IAUTHENTICATE CONTROL IAM ASSUMING IACKNOWLEDGE GROUP NO COUNT GROUPS GRID GOOD FRO FROM (address) Proword M (text)

ENT

only with Immediatethe Executive receipt of the EXECUTE be(To used following is be to carried out on Action on messagethe or signal transmitto anIMMEDIATE message I am breaking Precedence VERIFY) repeated (to be used only as areply to by originator the at your request and is whichThat follows has been ve I spell the shall next word phonetically indicated I am transmission repeating portion or instructions to read back The following my is your response to your challenge to The group that follows is a reply to further notice I am assuming of control this net until understanding your of message The addressee confirms receipt and countedbeen The groups this messagein have not following groups indicated by numeral the messageThis contains the number of reference The portion following is a grid Your signal strength good is conjunction with proword TO) am referring follows …….. (used in The portion of the message which to I immediately following indicated by the address designator The originator of this message is Explanation Your signal is very strong should break stations with higher precedence traffic A long message about to is follow, because your signal is intermittent I am having reading trouble you addressedare for information The addressees immediately following Method)

IMMEDIATE -

in UNCLASSIFIED UNCLASSIFIED - in to your to in conversation

authenticate 3A

-

3

rified rified

629 665 529 529 804 633 646 528 Para 633 640 633 528 709 669 517 667 307 646 659 619

ACP 125(G)ACP Original ZKA ACK ZEV QS or GRNC parts of amessage) heading ending or contained in the GR (when GR QSA 4 FM Prosign/OPSIG INFO IX O J IMI G ZNB

L

Uncontrolled copy when printed RELAY (TO) NET REBROADCAST YOUR READABLE READ BACK RADIO CHECK times) PRIORITY (Spoken three PRIORITY OVER OUT YOUTO OUT NUMBER NOTHING HEARD NO PLAY NICK NEGAT NEGATIVE MORE TOFOLLOW MESSAGE Proword

What transmitto anIMMEDIATE message I am breaking Precedence PRIORITY ahead, transmit you response anda necessary.is Go This is endthe of my withcall) other station(s). you.I amto about call (or resume a This is endthe of my transmission to expected you andnoanswer is required or This is endthe of my transmission to Station serial number from acalled station beTo used when no reply is received exercise traffic) assuch casualty a report, from used distinguishto a real emergency, considered as exercise play (typically concerns a real activity and not is to be The message textthat follows The number following a is nicknumber awaiting execution) single message or a group of messages (NEGAT may to beused cancel a using Delayed Executive Method Cancel message(s) sent previously No for the receiving station Transmitting station has further traffic tactical or reporting nets) usefor when messages are passed on conveyingfor messages. Itintendedis notis used onnets primarily employed down is about to A message requiringbe to written Explanation proword proword is used component is mandatory when this following this proword) The addressees (or addressees immediately Transmit this message all to yourof other net onto this frequency Commence automatic rebro satisfactory The quality your of transmission is me as exactly received Repeat this entire transmission back to readability

is myis signalstrength and

UNCLASSIFIED UNCLASSIFIED - in to your to in conv

follow (this proword

3A

transmission to

-

4

adcasting address ersation ersation

227 325 713 664 637 Para 641 674 633 639 633 669 517 536 536 Table 633

- 642

5 -

1

ACP 125(G)ACP Original NEGAT ZUG B ZBO Prosign/OPSIG T orT ZO G P K AR NR ZGN

F

Uncontrolled copy when printed THISIS REBROADCASTING STOP STANDBY ………SPEAKING SPEAK SLOWER SILENCE LIFTED SILENCE SILENCE SILENCE SERVICE SEND YOUR…… SEND SAY AGAIN ROUTINE ROGER AND READABILITY REPORT STRENGTH NET REPORTINGINTO THE RELAY THROUGH Proword

word when used on non transmission authentication a or code must be Silence is lifted (This transmission on used non authentication or acode word when authenticated transmission must be maintained until lifted (This immediately, will silence be Cease message The message thatfollows is aservice offered (format precedence) or that you have I am receive prepared to the message continue to receive) your message I am standingby receive to (or direction where appropriate) BEFORE ,FROM or orTO, specific BEFORE, WORD AFTER, WORD conjunction with ALL AFTER, ALL transmission (when used in Repeat aportion of you last Repeat all of your last transmission Precedence ROUTINE satisfactory The quality your of transmission is satisfactorily I received have your last transmission other stations on net.the Report me to howyou are receiving all having bee established net or returning after Calling station is joining an callsign……… Relay your message through Explanation whose callsign immediately follows This onto this frequency Cease rebroadcasting your other net EXECUTE) transmission of the proword Method is about occurto (upon transmitted using Delayed Executive Execution aof tactical message Appointment title ………..is speaking speed of transmission Your transmission is too fast, reduce

transmission is from station the transmissions on this net

self n closed down.

- -

authenticated secure nets)

UNCLASSIFIED UNCLASSIFIED by transmission

3A

self

- -

secure nets)

5 -

by

646 517 633 662 634 620 643 Para 520 674 708 237 676 677 508 637 637

ACP 125(G)ACP Original INT IMI R R ZOK Prosign/OPSIG DE QRT QRS ZUGHM HM HM HM SVC QRV K

Uncontrolled copy when printed WEAK WAIT OUT WAIT VERY WEAK VERIFY USE FULL PROCEDURE USE FULL CALL SIGNS PROCEDURE USE ABBREVI CALLSIGNS USE ABBREVIATED UNREADABLE UNKNOWN STATION (group) TO (group) (text) (text)TO (addressee)TO TIME CHECK check) TIME (in relation ato time a message) TIME (as a component of THROUGH ME THISIS A FREE NET NET THISIS A DIRECTED Proword

ATED

the messagethe originator a message portion (or indicated) from The addressee requires verification of further notice stations are useto full procedure until As conditions are not normal, all furtheruntil notice Call signs are be to transmit further notice are useto abbreviated procedure until As conditions are normal, all stations further notice Call signs are be to abbreviated until bad that I cannot read you The quality your of transmission is so establish communicatio station whom to I am to attempting I know donot callsign the the of number…….. and group number…….. am referring is between group The portion of the message which to I ……… am referring is between The portion of the message which to I addressedare for action The addressees immediately following I confirm amto about exact the time. theat momentI said TIME The timeI am transmitting exact is as message time date or whichThat immediately follows is the Relay your message through me notis directed From now further until notice this net directedis From now further until notice this net Explanation Your signal strength weak is transmit as normal thein seconds before continuing/responding, Imust pause for longer than five period. station is to transmit during this before continuing/resp Imust pause for up to five seconds Your signal strength very is weak meantime other stations can

- time group o

UNCLASSIFIED UNCLASSIFIED

3A onding, noother

ns with

….…. and - 6 f thef

ted in full

646 646 528 801 527 625 625 Para 633 636 636 633 667 611 611 611 611 633 711

ACP 125(G)ACP Original TO QTR ZOE ZUGZKB ZKB Prosign/OPSIG AS AR __ AS __ J AA

Uncontrolled copy when printed

YOUR CALLSIG WRONG WORDS TWICE WORD BEFORE WORD AFTER WITHINTERFERENCE WILCO Proword

N ISN

is…….. Your callsign for operating on this net The correct version is …………. Your last transmission was incorrect. group) twice transmitting Communication difficult,is I am phraseeach (or group)code twice Communication difficult,is transmit precedes……….. The word whichto I follows………… The word whichto I am referring interference I am having reading trouble you dueto u WILCOof twoprowords the are not meaning ROGER of included is in that (only used by addressee. the Since the understand it and I comply will it with I received have your message,I Explanation sed sed together.

phraseeach (or code

UNCLASSIFIED UNCLASSIFIED

am referring 3A - 7

661 639 646 646 633 662 Para 621

ACP 125(G)ACP Original ZWF QSZ WB WA Prosign/OPSIG

Uncontrolled copy when printed station must adherestation must tothe following: 404. Disc Radio Rules for control permits poor station operating standards. 403. headquarters or location. instructio In haveAll radio must netsorlinks station. a control designated of theabsence net. Acommander toexercise choose thatstation. may responsibilitycontrol through the 402. standards. and inaserious accuracy,radio candegradation inadequate discipline of security result efficiently.radioIn reducingfunction addition to netcannot efficiency communications 401. General

a. The are discipline followingrulesradio for mandatoryall radio nets.Every on Duringnet conditions, efficiency difficult even deteriorate can rapidly more if the It t is isa Radio discipline

ns to thecontrary,ns to servingcontrolthat station is station the thesenior

heresponsibility ona maintaindiscipline commander’s and radio toimpose vii. vi. v. iv. iii. ii. i. Always:

ipline immediately. based respond will ontheassumptionthatstations call to regardless ofthecircumstances. procedureare ofvoice Allaspects requires thepersonmonitor radio be one thatat nominated to least instructions orpermission hasbeen Maintain aconstant listeningwatch radio unless specific Use correct procedure. voice to the receive condition. On releasing thepress Release thepress clear allow forcannotand, wherestations which beheard. possible Listenthe frequency carefullytoensure transmitting before that is Answerand inthecorrectorderdelay. calls without Ensure thatt

fundamental ingredient which ofprocedurewithout a voice he correctfrequency use. isin

UNCLASSIFIED UNCLASSIFIED CHAPTER 4 DISCIPLINE

- to - talk switch talk 4 - - 1 to

- talk switch, ensure the radio that returns

promptly. received tothecontrary.received This

ACP 125(G)ACP Original

Uncontrolled copy when printed details andtimingsfollowing: ofthe net. legibly The log written inthe be operator’s all should andrelevant ownhand,include record all transmi of 406. dedicated is a orheadquarterstask. ship who toa single vehicle expected tomaintaina isnot or completelyas log neatlya keeper as watch sayin allbe typesThe able operator a tokeep inan fulllog. armoured ofstationswill 405. Logging Radio

e. d. c. b. a. Subject theabove, to radio thelog acomplete contain continuous should and Whenever so,radio practicalare logsmaintained do onall to radioNot tobe nets. b.

transmitted orreceived the net. on Sufficientto identify referenceor procedural calls data all other messages Changes frequency and inoperating interferen Theof the opening and radio closing onthe net. stations The identityformalform. ofmessageswritten separatelyona message during busyperiods. logging oftra messagesusers betweenaccepted of other is theradionet,butit that the to provide adequate reference Operators attempt should tolog information. full or,wheregist impractical, ofa is the this insufficient message detail All transmitted and received informalvoice and conv messages vii. vi. v. iv. iii. ii. i. Never:

tted and received informationtted concerning messages, and theradio

Show lossoftemperShow profane oruse language. repetition. conditions can betoreceive, expected thusavoi Speak experiencing reception fasterworst thestation the than or individual sign. Identify orunitby an ship individual, any name, or other personal Engagechat. conversationor inunofficial operator’s Make unnecessary unduly transmission long or disclosure. classifiedCompromise information plainlanguage by unauthorised Violate radio silence. ffic between third partiesffic third be between likely is ofsecond to priority

UNCLASSIFIED UNCLASSIFIED

4

- 2

ce reports. ce

ACP 125(G)ACP Original s. ding needless needless ding

ersations in in ersations fighting

Uncontrolled copy when printed national/theatre/command instructions. 408. particularly atwhere th Control 407.

Radio logs tobewith heldinaccordance safe keeping in Good log part isanessential of keeping operation theefficient of a station, radio i. h. g. f.

of all classifiedcryptographicbeen and/or material hasmade. ex transfer satisfactorily.othercompleted been has arrangements Unless operatorto the recordnameeffect his isto and rank, that signature the Handoverand takeover by operators.Thethe radiostation receiving action taken. suspected deception or Entries jamming. s Unusual as occurrences procedural such or orsecurityviolations, with anycorrective taken. action Reports orsuspect, ofwithwhomcontact stations difficult amplified is periods of net inactivity.) bereceive should made condition.at (These regular int Entries totheeffect radio isoperatingcorrectly receiver that the inthe ist, thisist, signature toconfirm accountability that acomplete isalso check

e operator is responsible for other stations on thenet. for othere on stations operator isresponsible UNCLASSIFIED UNCLASSIFIED

4 - 3

hould include the reporting ACP 125(G)ACP Original ervals during

Uncontrolled copy when printed 508. messagebe identified ason a service 507. any orcircuit handling, communicationsconditions. oftraffic phase facilities, 506. Service Message the schematic a message diagram of at format communicatio The heading a only necessary ofsuch messagecontains information toenable addressees, when thetext. address includingwithin indicatingused),groups isencrypted 505. Codress plaindressIn headings. case,allany of such or 504. Abbreviated Plaindress employed. 503. and date basicaddress)as messagealwaysformat must showninthe and thepre include 502. indicated externally the text. of 501. Plaindress

Plain An encrypted alwaysnumericalgroup will will message counta service and carry A service message A codress inwhichthe entire (i.e. isone message address d. c. b. a. Operational for handling speed requirements may of require abbreviation of The group accounting count always included will the when symbol be is A plaindress allthecomponents contains (unless message the call serves as A plaindress mess -

time group. time

- languagethe proword service messagesare identified by SERVICE. n personnel to handlen personnelIt to itproperly.contains in allother shown components Group count. Date Date. Precedence.

-

time group. time

age is one in which the originator and isoneage inwhichtheare originator addressee designators is one betweencommunications personnelis one andpertainingto

UNCLASSIFIED UNCLASSIFIED CHAPTER 5 ly within theencrypted within ly text. MESSAGES 5 - 1 Table Table

the following omitted: may be 5

-

1 .

originator and all ACP 125(G)ACP Original

cedence

Uncontrolled copy when printed will havewill three PARTS: 515. authorised. form AviationOrganisationInternationalCivil form exceptcommercial when or is a 514. MessageFormat message he those message identifications which were ortransmission contained inthe external received orusinggroups, usecall incodressform, only oraddress encrypted signs shall 513. message be must classified. plain language ofthe classified text message,abbreviatedservice the service however, or Ifidentifications isnecessary are it anything used. wouldreveal toinclude part that ofthe referringmessage toaclassifiedifonly 512. of ServiceClassification Abbreviated Service and Messages format rather line 14wouldnormally be of time transmission thantime oforigin. sequence inthe basicand messageformat,groups described when sentin used, time andana ending, text, i.e. the basic ( messageformat autilise more conversationalInformalmessages procedure.any mayof containelement sent onuser operated nets 511. Informal Messages same manneras message. a service abbreviatedIt identified not and procedure. is inthe plaindress notbeauthorised need necessary. service An abbreviated transmitted messagemayusing be plain designators, ofmessages, identification amplifying ofdata messages,and as parts to facilitate trafficcontainsaddress handling. only Thistype ofmessage prowords, 510. Abbreviated ServiceMessage precedenceof the equal message that refer. to towhichthey or refiled originating normally by, thestation be theservicewill assigned message,and a plaindress, They or codress form. generally messagesconcern at, originatedde 509.

a. Each either prepared message ab plaindress, in Each shallbe message prepared abbreviated orcodress inplaindress, plaindress, An un An unclassified abbreviated service service or may message when be used Informal are messages thosetactical, service operational and messagescommonly An abbreviatedmessageoperators, service isone between which Service prepared may messages be inplaindress, and abbreviated transmitted

adingas received. classified abbreviated service service or a referring message message to Heading.

format 15.Allelements usedare lines 2,3,12and tobeinthe , e.g.,field traffic control. tactical andair These tend types to of Table

5 - 1

UNCLASSIFIED UNCLASSIFIED ), however, they will normally), however,will ofa they call, consist only prowords and message prowords ortransmission 5 - 2

breviatedcodress plaindress, or

ACP 125(G)ACP Original may be requiredmay be dress or stined for,

Uncontrolled copy when printed necessarily appear. aswill indicated, they appearance inthebutvarious message, contentsnot ELEMENTS ofthe are 517. Schematic MessageFormat of Diagram ELEMENTS and CONTENTS. 516. Heading PART

Procedure COMPONENT In notethatfollowing isindicated every intheorderof the diagram, ELEMENT b. a. certainEach which are has PART message COMPONENTS downinto broken c. b. instructions d. Transmission identification c. Transmission follows b. Message a. Call ELEMENT

the order indicated necessarilyappear inevery whenused, message;however, theybe will in the unchangeable ofthebasic format.allformat elements lines Not format asfor Lines operation. designed radiotelephone are 5through 13 3, 4,14,and 16identify procedural the porti In ofa messageformat theschematicdiagram at appearance. ELEMENTS have a standardised ar All message and a PARTS majority the COMPONENTSand of Ending. Text.

Table

4 2 & 3 1 LINE FORMAT 5

- 1

Schematic diagram of a message format

.

UNCLASSIFIED UNCLASSIFIED call signs, WORDS TWICE; operating signals,address groups, ANSWER, RELAYproword READTO, BACK, DO NOT NUMBERproword andstation serial number proword MESSAGE identify calling the station identify exempted addressees. Proword THISIS to abbreviated Proword INFO, identify to info addressees in Stations called: Not used. CONTENT

5 - 3

and plain

plaindress messages. Proword EXEMPT to

rangement or sequentialrangement or order of

language designators.

on of the basicon ofmessage the

Table Table ACP 125(G)ACP Original

5 - 1 , format lines 2, lines , format

Uncontrolled copy when printed 520. s when the thedesignators signs originatoraddressees of and oftheas are thesame thecall particularItalso messageisbeingtransmitted.the message serve mayaddress of as the 519. identification 518. andFormat 3(Calling Answering) 2and Lines tations incommunicationtations same witheach net. other onthe Separation Text Separation PART

Text Prefix Address Preamble COMPONENT a. The callthe following mayone take of forms: Call. The These lines will a. Subject matter Group count information. a. Accounting addressees d. Exempted addressees c. Information addressees b. Action a. Originator instructions. message Date a. Precedence, ELEMENT

- Time Group,

Full Call.

The callmessage ofa that serves toidentify the stationsbetween which

contain and thecall, thetransmission MESSAGE, theproword

12 10 9 8 7 6 5 LINE FORMAT

UNCLASSIFIED UNCLASSIFIED proword EXEMPT.proword Exempted addressee address designators INFO.proword Information addressee proword ActionTO. addressee address designators FROM.proword Originator’s address designator FOLLOW IMMEDIATE or EXECUTE. digits, operating signals and proword EX national authorities the year indicated by the last two indicated by the first three letters, and, if required by time expressed in digits, and zone suffix, month IMMEDIATE orFLASH. Proword TIME; date and Precedence designation; ROUTINE, CONTENT Proword BREAK expressedas by originator the internal instructions appropriate,as thoughts or ideas CLEAR, UNCLASSIFIED, proword SERVICE and/or Proword BREAK GROUPproword NO COUNT accounting symbol; group count; proword GROUPS or designators 5 - 4

ACP 125(G)ACP Original PRIORITY, address

ECUTE TO

Uncontrolled copy when printed 522. 521. Example: Example:

The call two may types: be of d. c. b. a. The call may contain: f. e. d. c. Sabine Raider ISTHIS b. Z34D ISTHIS Y13C

Net call sign identi A combination of andcollective bothindividual signs. call (addressees). Collective call signsgroup ofstations identifying a predetermined Individual signs call identifying(addressees) separately. stations transmitting of theidentification theaircra An aeronauticalmayacknowledgeaircraft an station messageby far as possible. appropriate international beadhered must and/or national regulations to,as instances, there communications each with other. However,of ineither theforegoing apply thesame within net toanywhicharecontinuous twostations in may provision ground Forthis no confusion wouldresult. forces use, net shared not station, thecall by ama third are twostations When incontinuouscommunication witheacha other on respondingWhen orreceiptingcall a toa for transmission. the receiving furtherIS theTHIS stationmay proword omit For speed ofworking conditionsgood, are when particul no ambiguity result. will when aispartexchange call ofan oftransmissions between and stations Abbreviated Call.

Call signCall oftransmittingstation signCall oftransmittingstation signCall ofcalled station quirement for periodic as setforthquirement identification in fying onaall stations given net.

The signc call ofthe UNCLASSIFIED UNCLASSIFIED

From From

5 - 5

alled station mayalled omitted station be ft. y entirely, omitted be provided

ACP 125(G)ACP Original arly onlargenets,

Uncontrolled copy when printed 527. Format 5(Preamble) Line prowords inpara isexplained TWICE,WORDS BACK, The(TO)or DO use READ ANSWER. RELAY NOTofthese 526. For consist ofthestationserial number preceded by theproword NUMBER on voice be netsifrequired,of will thelast format but, it 3and element will lines 2and 525. FORMAL may message MESSAGE plaindre usedisin toindicate be the call toindicate that amessage thatrequires proword recording follow.The isaboutto 524. Example: stations. addressee ofthe byand proword stations thecallexempted EXEMPT ofthe use signs maycollective simplersign tocall a using be call and ornet non thentoexclude 523. usingExample call twoindividual signs: Example: mat Line 4 (Transmission Instructions) mat 4(

b. a. will containThis line the precedence, date instructionswhich containsThis line the transmission may consist ofprowords Transmission Identification. Message. Y13C EXE Exempting stations. LionDamp b. ISD381 THISZ34D a.

transmitted immediatelyafter theabbreviated precedencedesignation. An byyearauthorities, the national by indicated thelas indicated month and suffix, zone letters by thefirst and ifrequired three Date higher be will transmitted precedencefirst. designation Infirst element 5. of line format thecase ofdual Precedence. Theseand/ornet collective mayand/or call be signs. individual call.Multiple be an collectiveornet sign. individual, call call. Single

The proword MESSAGE mayMESSAGE immediately prowordThe befollowing transmitted the MPT F178ISMPT Z34D THIS – - Time Group. Time Hollow Piston THISISHollow Piston Sabine Raider

Only signIS. call THIS precedes one This may theproword

The appropriate precedence designation is transmitted as appropriateis the precedenceThe designation

When placingtomanyWhen call a it multiple all stations, butnot ’ Two or more call p signs s

OVER

639

The prowordbyfollowed TIME thedate UNCLASSIFIED UNCLASSIFIED - 645

A transmissionidentificationnot normallyused is

and 5 - 659 6

OVER .

- time group, and group, messagetime instructions:

recede the prowordIS. THISrecede the

OVER - precedence messages, t t two digitst two is ACP 125(G)ACP Original

ss format. ss - time group time

-

he he

Uncontrolled copy when printed Example A: Example are each net, theaddress. incommunication same the with call other serveas will onthe INFO respectively.FROM, TO,and EXEMPT, theoriginator When addressees and the 528. Example: Example:

Zulu JAN Th One Six One Two TIME PRIORITY MESSAGE 4D ISTHIS 3C Transmission component (assuming use):abbreviated signs call are in Plaindress message heading elements oftheaddress showingall possible Theseaddress recognised linesofthemessage form and by theprowords theare LINESFORMAT AND 9(ADDRESS) 6,7,8 DUPLICATETHISIS MESSAGE ASUSPECTED c. ThreeZulu……Zero 95

r

– ee Zeroee

THIS ISTHIS 92

destination. messageconcise remain will withtheto instructions,stationof which radiotelephone included, When they consist ofshortandwill messages. Message Instructions. 14maytransmitted inline thedatereplace plaindress messagecarry may nodate

RELAY TO 20 RELAY

A message thatrequires recording follow isaboutto signCall ofstation calling From Collective call called sign ofstations Explanation Date The of time origin is Precedence designation -

time group time (121630Z JAN) UNCLASSIFIED UNCLASSIFIED

These should notnormallybe should These required on

– 5

PRIOR - 7

ITY -

time group, ora grouptime time

– -

time group. time TIME Zero Seven One Six TIMEZero One Seven Six

ACP 125(G)ACP Original

Uncontrolled copy when printed Example C: Example B:Example addressees(assumingcall only abbreviated are inuse): signs Abbreviatedmessage with call serving address, sign action plaindress as the 81 INFO 20 TO 06 FROM Address 06 ISTHIS 81 Transmission component (assuming use):abbreviated signs call are in Abbreviatedmessage theaddress in showingthreeelements plaindress 78 EXEMPT 20 INFO 3C TO 4D FROM Address

Call signCall oforiginator The originator is ofthismessage signCall ofcalling station From signCall Explanation signCall ofexempted addressee Theis exempted addressee signCall addres ofinformation The information is addressee Collective call addressees signaction of The action is addressee signCall oforiginator The originator is ofthismessage Call signCall addressee ofinformation The information addressee signCall ofaction (notonnet) addressee The action is addressee

UNCLASSIFIED UNCLASSIFIED of receiving station

5 - 8

is

see is see

ACP 125(G)ACP Original

Uncontrolled copy when printed Example Example ascertain were that stations ready toreceive. transmitting themessageeven a though may preliminary havecall to used been Note: thecall When serves call signaddress, sign afull when as ismandatory the One Eig TIME Text the message BRASSY OVEN ISTHIS addressee CHALKY SIPHON INFO LIONDAMP Transmission and informationcall (assumingabbreviated addressees signs are inuse): Abbreviatedmessageservingaction sign withtheas call theaddress, plaindress OneFourZulu ..Time group Two Three TIME Text PRIORITY Piston ISTHIS Oven Transmission Call andCall address D: Call andCall address

ht Two Four Zulu….….Time Four groupht Two

From The information is addressee Explanation Time of origin is Subject matter Precedence designation signCall ofstation calling andofthe originator message From Call Explanation Time of origin is Subject matter sign and ofreceiving action addressee station

UNCLASSIFIED UNCLASSIFIED signCall ofstation calledand action a

5

- Call signCall ofstation calling andof originator signCall ofstation calledand information 9

ACP 125(G)ACP Original ddressee

Uncontrolled copy when printed TI transmitted here theplace a takes date of 534. FormatGroup) 14(Time Line used only 533. Format 13(Separation) Line specifically theprowordand internal (ACP121), authorised SERVICE, instructions. expressed by the 532. Format 12(Text) Line used onlylikely. between is confusion thetext when theheadingand 531. Format 11(Separation) Line count transmitted inaccordance is code. withtheinstructionsfor operating the In rathertext line 10. thaninformat used 10isnot and cases,line format thegroup such 530. group designation. ItCOUNT.groups, GROUPS NOan may accounting or contain tothe inaddition symbol 529. Format 10(P Line ME followed by the time groupthe zonefollowed suffix. plus by the time ME

This line isusedonlyThis line group inabbreviated a when time messages plaindress containsThis line the BREAK, proword It separatingfrom the thetext ending. is ofthe message thetext This is tothecontain, thoughts and prior as may orideas containThis line tacticalSome grouprequire thatthe codes c b. a. isidentifiedThis line bythe proword by followed GROUPS of thenumber

when confusion between the text andthe between ending confusion islikely.when thetext messages bearingangroups accountingare symbol when notcounted. operator. be GROUPSNOwill included prowords COUNT in The byfinal and instructions be intheprefix message inserted receiving the the groupactual group count.be count Thetransmi may then NOdetermined, COUNT GROUPS be will usedof theprowords inlieu a When message messagegroup prefix. istransmittedbefore count the is pre count seldomused.However,sent if is be will groups of the number Group Count. whichresponsibility assumed financialfor themessage. combination be areshould recognisedaccounting Theseas a such. symbols on messages relayfor received employing fromandprocedures nets other messages radiotelephone transmitted over nets. However,theyappear may Accounting Information. originator, the the word if originator, word UNCLASSIFIED or CLEAR ceded by the proword GROUPS and normallyGROUPS will ceded by theproword appear inthe

refix)

s theprowordBREAK, separatingfromIt the thetext heading. is

of letters toindicate service, the used agency, activity, or

Radiotelephoneare messagesgroup shortand a usually

UNCLASSIFIED UNCLASSIFIED -

time group in line 5. Itgroup 5. inline theprowordtime of consists Accounting are seldomused symbols on 5 - 10

ount be transmitted atthe theount be end of

ACP 125(G)ACP Original

tted inthe

Uncontrolled copy when printed 536. Format Sign) 16(Ending Line groups,calland signs, plain AGAIN,FOLLOW, WAIT) MORE TO signal, STANDY EXECUTE, operating address 535. Format 15(FinalInstructions) Line

b. a. isidentifiedThis line bythe prowordsOUT: OVER or MayIS, ascontain (such AUTHENTICATION prowords I CORRECTION, SAY

transmission shallbetransmission ended withthe proword OUT. Inall trans whereconfusion notarise. will thesamewithin net areincontinuouscommunication witheach other sharedgroundthe case where withathirdor, inforces, of twostations arestations inconti prowordexcept OUT, that the proword may OVER when omitted two be Every OVER shallend transmission witheitherorthe theproword missions where the proword DO NOT ANSWER is used,the whereis theprowordDOANSWER missions NOT - language designators.

nuous communication witheach other ona net not UNCLASSIFIED UNCLASSIFIED

5 - 11

ACP 125(G)ACP Original

Uncontrolled copy when printed callingand ofthose ofmessages: answering included and incomponents 607. CallSigns Sequence Address of and/or Groups etc.)sign call followed ofthesignals. by the stationtransmitting no of a transmitter beforeafor callofa making ortheadjustment receiver, signals such will 606. a net clearbefore is making any transmission. 605. momentarily, necessary. break toallowanotherstation inif message, natural (carrier) aftereach transmission pause and his phaseinterrupt 604. phrases, word not by word. word excepta pronunciationinnatural the prescribed numeral,andshouldbe spoken of 603. consistent clarity. with use ofstan The 602. written down. operator or person, by whichshallbe toanother are preceded theproword MESSAGE, down prior Those totransmission. messages 601. General t continuefor more 10secondscomposed than andbe ofspoken will numerals(1,2,3

b. a. Thegovern followingrulesthe sequencecall signs of isnecessary it When testa initiate signals, for stationto for adjustment the either To avoid interferingwith other traffic, shallli an operator If istechnically it practical, be should clear,Radiotelephone natural transmissions with emphasis oneach Transmissions by radiotelephoneand shallbe conciseas as practicable, short To use netall moremessages time substance efficiently,written ortheir be should

abbreviate avoids any may confusion that changing full when to arise from a collective be isto thesamefull call were call as signs if inuse. This abbreviatedWhen call signsa sequence net, are usedanswering the on of interdependent. groups and/or related conjunctive call addres of signs seventhexercised lettersalphabet. Care of be toavoid the must separating figures be 1through 0will considered thetwenty transmitted, whether arranged theyorderare inwhich inalphabeticalthe form tobe signsCall groups and/or address headings inmessage ordinarily will be d call signs. d

OPERATING RULES

the operator shall, during thetransmissionof a UNCLASSIFIED UNCLASSIFIED plain orencrypted. thispurpose, For plain /(slant) and CHAPTER 6

dard phraseology enhancesdard brevity. 6 - which must bedelivered must receiving by the which 1

and/or address groups in address groups and/or

- seventh through thirty seventh sten tomake certain that

ACP 125(G)ACP Original s groupss that are

-

Uncontrolled copy when printed Z34D transmits: In station E969isunable the thesubordinate example, toanswer this collective call. B:Example and thatthere for traffic them: isno The nowcallsinformthat to NCS allstations thenet their tra Each thenanswers subordinate station t At a designatedwhenZ34D time orready toestablishthe net, transmits: A: Example all stations. 610. 609. furnished prior by toallstations establishing theNCS a net. responsible for net. maintainingguidance onits Appropriate security be security will beginand maintain an (NCS) andoperating thenet within adherence enable rules to the byall stations net to net for thefirst station orwhenreopeninga time control net. control Proper bythenet 608. aNet Establishing

Y13C (Y13C (Z34DIS) THIS H795 (Z34DIS) THISF178 (Z34DIS) THIS E969 (Z34DIS) THIS D381 (Z34DIS) THIS C206 (Z34DIS) THIS A192 Y13C Before themay reception for passing necessary traffic it be conditions toestablish Full call signswhen be used establishing must The usepr ofprocedure as c.

– – – station thenanswers ifable todoso. last, turnanswers in turn,thenext its after a 5 If one several fails areinonetransmissionand called stations toanswer

THISISZ34D THISISZ34D THIS IS)Z34DTHIS

exchange of traffic with minimum delay.exchange withminimum isalso oftraffic NCS The – – – – – – – –

OVER OVER – OVER OVER OVER OVER OVER OVER

escribed be shall followed whena herein either opening OUT

UNCLASSIFIED UNCLASSIFIED

he callhe inalphanumeric order:

6 - 2

a net. -

second The pause. defaulting

nsmissions havensmissions been heard

ACP 125(G)ACP Original

Uncontrolled copy when printed A permit, maythe NCS procedure the order abbreviated use ofbytheproword using USE 615. USE FULL CALL SIGNS. conditions 614. ABBREVIATED CALLSIGNS. permit, maythe NCS callsigns the order abbreviated use of theproword byusing USE 613. as dictated byconditions. theprevailing 612. signs and 611. andAbbreviated Procedure Callsigns After except all stations E969,Z34Dfrom receiving transmits: answers H795 follows on: F178,from hearing noanswerE969,waits approximately transmits: and 5seconds then The first three statio BBREVIATED PROCEDURE.

Abbreviated Procedure. Full CallSigns. Abbreviated Cal Theorder may, revertsigns NCS tofullprocedures theto net and/or however, call c. b. a. normallyOnce will it hasbeenestablished, work thenet callabbreviated using (Y13C (Z34DIS) THIS H795 (Z34DIS) THISF178 (Z34DIS) THIS D381 (Z34DIS) THIS C206 (Z34DIS) THIS A192

procedures as follows: procedures as follows: require it, the NCS mayrequireNCS full the order call it, use proword signs of the byusing – Preliminarycalls acc are optional in characters(order of answeringremains for as fullcallsigns) the same Callsigns beabbreviated will by truncatingcallsign tothe lasttwo the ISThe proword THIS from omitted may allcalls be

THIS IS)Z34DTHIS

ns then answer;

On initial orat establishmentofthe net any other when time l Signs.

– – – – –

OVER OVER OVER OVER OVER

At the discretion of the NCS andAt thediscretionNCS when of conditions the

At the discretion of the NCS andAt thediscretionNCS when of conditions the

ROGER UNCLASSIFIED UNCLASSIFIED

6 – -

3 E969

ordance withparaordance –

NOTHING HEARD

ACP 125(G)ACP Original .

6

38 .

OUT

Uncontrolled copy when printed Each answersinturnusing station and abbreviated callsigns procedure use): The orders NCS of abbreviated the use Example Each answersinturnusing station fullprocedure: The orders NCS of full the procedure use signs (assuming fullcall are inuse): Example Upon establishment of thenet transmits: the NCS Example may us be procedureprowords the combined USE FULL CALLSIGNSPROCEDURE FULL AND ABBREVIATED Conversely, PROCEDURE. changing when callsigns tofull and combineand prowordsUSE order ABBREVIATED CALLSIGNS AND 618. abbreviatedcall therefore signs, continue touse must fullprocedure. thenet procedure: example: astationusing For fullcallsigns and procedureisordered touse 617. procedure by theproword using USEFULL PROCEDURE abbreviated cause orders the NCS unnecessaryrepetitions, procedurewill the use offull 616.

(The other stati (4D (4D 3C (The net acknowledge other onthe inturn). stations Z34D Z34D Y13C ABBREVIATED PROCEDURE Y13C Foran ordering brevity, NCS Abbreviated full or Full Procedure. C B A ed. – : : :

– –

THISIS 4D

THIS IS)THIS 06 IS)THIS 92 – – – –

THIS IS THIS C206 IS A192 THIS THISISZ34D THISISZ34D ons on the net acknowledgeons onthe inturn)

If the NCS judgesIfNCS thatconditionsare the of such thattheuse – – – use of callsignsuse abbreviated of from full exclusive is use of or USE ABBREVIATED CALLSIGNSUSE

ROGER ROGER ROGER – – – –

ROGER ROGER USE FULL PROCEDURE USE FULL PROCEDURE CALLSIGNSUSE ABBREVIATED AND UNCLASSIFIED UNCLASSIFIED

use of abbreviatedcallsigns anduse proceduremay of – –

callsigns (assuming abbreviated procedureisin OUT OUT – – –

OUT

6 OUT OUT -

4

OVER –

OVER ACP 125(G)ACP Original

Uncontrolled copy when printed H795 transmits Z34D anorderto H795using transmits authentication: transmission BExample H795 transmits: Z34Dresponds: issues thechallenge:H795, unsureZ34D’sauthenticity ofthe of transmission, Z34D anorderto H795: transmits A Example 619. Authentication

confirmed) (4D 95 (4D determined) (95 (4D 95 b. a. Used only onnon

– – – –

– – – – THIS ISTHIS 4D ISTHIS

THIS IS)THIS (4D) Transmission authenticati Challengeand Reply: THIS IS)THIS 95 IS)THIS (95) THIS authentication conjunction a with sequence from offigures orcharacters a transmission their own transmissionby AUTHENTICATIONIS theproword using in Transmission authentication. figures from orcharacters derived Iproword along AUTHENTICATE withthe corresponding reply of authentication table.stationbeing Thethen responds challenged the with AUTHENTICATE withasequence along offigures orcharactersan from entailsthis astationissuingchallenge the by transmi reply. and Challenge

– IS) 95 –

ROGER ROGER

– IAUTHENTICATE Whiskey

4D – - secure nets,secure there areofauthentication: methods twodistinct

– – Move now Move –

– – AUTHENTICATE Oscar Charlie WAIT (short pause whilst transmission authentication transmission (shortwhilst is pauseWAIT Move now Move correspond ofwith thetable time thetransmission. that – OUT WAIT (shortthe authentication whilst pause reply is

OUT

UNCLASSIFIED UNCLASSIFIED

A challengesmethod whereby station another; one – on:

– AUTHENTICATION ISLimaAUTHENTICATION Tango OVER

OVER

6 - 5

A method wherebya stationauthenticates a similar authentication table. a authentication similar

OVER

OVER tting the proword

ACP 125(G)ACP Original

Uncontrolled copy when printed M172 transmits: Z34D transmits: New stationM172tr the net andhas assigns successfullyNCS authenticated. callsign been The the spare J32F A new stationusingcallsign M172fromnetVV2X) the another (NICreported into has Example: sequence o using CALLSIGN YOUR theproword IS advisefollow inthe isto who they and are to sign assign isto successful theNCS from a that net.After spare authentication, callsign toeithe then itis 621. Z34D transmits: E969 transmits: Z34D transmits: now ablecalls toreport theNCS totransmitthenet: and into E969 was unable t Example: authenticatesecure, isto NCS the joining the station. REPORTINGINTO NET intheirworking callWhen THE initial tothe NCS. non 620. aWorking NetJoining

THIS ISTHIS M172 M172 Z34D joiningWhen a joining net, the stationhasnotbeen if pre PROCEDURE ISTHISZ34D ISTHIS E969 E969 Z3 joiningStations a net ithas after commencedworking are touse theproword

4D f answering net calls using the proword ANSWER AFTER.f answeringcalls ANSWER using net theproword – – – –

THIS ISTHISZ34D

THIS IS THIS M172 IS E969 THIS THISISZ34D

r useAddress if an joininganother Group or, fromNIC net,and the call o transmit onthe establishment o transmit of the net (para ansmits: – – – –

IBravo AUTHENTICATE

USE ABBREVIATED AND ABBREVIATED CALLSIGNS OUT IAUTHENTICATE Golf

– – – –

AUTHENTICATE Tango Mike REPORTINGINTO NET THE

AUTHENTICATE Yankee Yankee NIC VV2X UNCLASSIFIED UNCLASSIFIED 6 - 6 –

REPORTING INTO NETREPORTING THE – –

OVER

OVER

– - – . allocated a sign call

610 OVER OVER ACP 125(G)ACP Original –

E

OVER xample B) is xample

OVER -

Uncontrolled copy when printed Having answer stations the subordinate authentication, inturn: the verified authenticationtransmission system inuse: is The directschange NCS thenet frequency to anew u A: Example directedIn usinga cases, frequencyauthenticationdesignator. suchbe used. must 623. The transmits theorder NCS tochange: nicknameby isunderstood restating intheir reply: it Each subordinate The changes NCS a to new thenet frequency usingFAST TABLE: thenickname Example following be procedurewill used: nicknames foreseeablechanges tobeIf usedare for available, the these infrequency. security. for Signal agreed thenet possible, provide wherever should, instructions frequency as muchas be inthe should possible interest disguised ofcommunications 622. Directing Freque in aChange assignedM172 transmits using their callsign J32F: Z34D thattheauthenticationreplycorre satisfied was

the authentication use). systemin authenticationgiven may ifconsidered be nece Six 3C If thechangeorifnickname, agreed to be planned thereisno isnot the change is (3C (4D (4D 3C As withall other activities that changecharacteristicsa ofa in theshift net, IS)(THIS 2F ABBREVIATED PROCEDURE CALLSIGNH795 ISTHISZ34D

– – – – – –

THISIS 4D THISIS 4D

AUTHENTICATIONIS Romeo Foxtrot THIS ISTHIS THIS IS)THIS 06 IS)THIS 92 station answers in turn and confirms to the NCS thatthepurpose answers tothe NCS confirms ofthat inturnandstation – ) 4D ) 4D

– ROGER ROGER

YOUR CALLSIGN ISCALLSIGNYOUR – – – – –

– Change to FrequencyChangeBravo One One to FAST TABLEFAST

ABBREVIATED CALLSIGNS USE AND FAST TABLEFAST TABLEFAST FAST TABLEFAST ncy –

OUT

UNCLASSIFIED UNCLASSIFIED

– OVER 6 – –

- – OVER

7

OVER OVER OUT

J32F J32F

ct transmits:

ssary depending on instructions forssary oninstructions depending – – sing the designator B11, where thedesignator sing a

OVER (thetime of

ANSWER AFTERANSWER –

TIME One Eight OneOne TIME Eight ACP 125(G)ACP Original

Uncontrolled copy when printed operational factorsinvolved. 625. Directed Free and Nets to re considersIf that thesomedoes net reason.decide mayfor not befullythe working NCS In security,only ofcommunications NCS should theinterests this be done ifthe under the check conditionsth to 624. change frequency: Callsignwi A192,satisfied The Authenticates: NCS Theseeks reply first to authentication: station authenticationtransmission system inuse: not is The changes NCS to thenet B:Example

- establish the net, it wi establish thenet, it b. a. The of operation typeand ofnetmethod determinedfrom is of consideration theshifthasWhen executed, decide been thewill NCS whether isnecessary it (4D (4D (92 depending on instructionsfor theauthenticationsystem inuse.) – (4D 3C (4D (4D

OVER (The ofgiven time may authentication ifconsidered be necessary, – –

– – – – –

THISIS 4D

THIS IS)THIS 4D THIS IS)THIS 92 THIS IS)THIS 06 IS)THIS 92 IS)THIS 92 IS)THIS 06 required for the transmission of FLASH messages, whichrequired FLASH of shallbe the sent messages, transmission for prior tocommunicating with other thenet.not stations in is Permission Directed Net. discipline. relievecontrol of station theresponsibility the f obtaining from Free operation prior the NCS. permission net does not member transmit stationstraffic to the net in without toother stations Free Net.

Innet, typethe net of this control(NCS)authorises station – – – – – – – ll bell done inpara as described th the authentication acknowledges order response, to the Change to FrequencyChangeBravo One One to

a new frequency usingwhere B11 thedesignator a

ROGER ROGER ROGER AUTHENTICATE Hotel Delta ROGER ROGER IAUTHENTICATE Mike

In type this ofnet, obtain from permission stations the NCS at re been the net has UNCLASSIFIED UNCLASSIFIED – – – –

OUT, etc. OUT OUT, etc. OUT 6 -

8

- established on the new frequency. new established onthe

. OVER

610 –

. or maintaining net or TI

ME One Eight One Six One Six EightOne ME –

OVER ACP 125(G)ACP Original

Uncontrolled copy when printed H795, hearing E969togo tells authorisation, ahead: this highestnext message precedence message: totransmithis IMMEDIATEAftercompletes his A192 to to clear trafficprecedence: of inorder Z34D informs thattheir have thestations transmissions then commences beenand heard indi Each thenanswerscallalphanumeric subordinatesign, orderof station inthe hisfull Z34D transmits: Example: 627. NETIS or THIS ADIRECTEDNET by shall be used theNCS. changea free net a to directednet,ofthe T versa, one prowords orvice 626. cating traffic onhand:

(69 69 (3C (4D (4D (4D (4D (4D (4D yourwhom are messages 3C a. Directed Nets: A net deemeda is ordered. free tobe net unlessisrequiredto otherwise it When

– – – – – – – – – –

THIS ISTHIS 4D

THISIS 4D

THIS IS)THIS 95 THIS IS)THIS 4D THIS IS)THIS 95 IS)THIS 78 IS)THIS 69 IS)THIS 81 IS)THIS 06 IS)THIS 92 of traffic (assum to betransmitted announces directed is theamount thattherequests net and and precedence The followingexample illustratesthe mannerthe NCS inwhich accordance schedules. with predetermined direct.

Transmissions ona directed accomplishedin may also net be

– –

– – – – – – Send yourSend PRIORITY – THIS IS THIS NET ADIRECTED

SEND SEND

No TrafficNo TrafficNo for 95PRIORITY 92 ROUTINE for TrafficNo IMMEDIATE youROUTINEand oneOne for ROGER ROGER –

OVER – UNCLASSIFIED UNCLASSIFIED

OVER

– – – 92

OVER OVER OVER

– 6 Z34D, orders theNCS the the stationwith

- Send yourIMMEDIATESend 9

– –

OVER ing abbreviated callabbreviateding signs are inuse). OVER –

OUT

of what forand precedence

ACP 125(G)ACP Original – HIS IS FREEHIS A

OVER –

OVER

Uncontrolled copy when printed assume transmits: netNCS control. The to The isclosingfor and position NCS 30minutes thebest down decides thatD381 is in Example: Innet for anysu reason. effective orwhen bemaintainedcannot NCS netby has the NCS the control toleave the 628. NetDelegating Assuming Control and with the transmission inorderThis is toavoidH795 tomakepreliminary requiring a call.proceeds H795then hearingC206, thentransmit: should theauthorisation, netWhen permit,Z34D conditions thatthey informs H795 may transmi Z34D transmits: 4D H795, having ROUTINEmessagefor one transmits: C206, Example: is cleared. transmitto authorisetheir messages stationsto inor Afterreceipts continues messageand for transmits theproword H795 the the OUT, NCS call toH795.) (Failure ofH795 toans –

THIS ISTHIS 95 QuebecLima CONTROL 3C It toasubordinate necessaryfor controlbe may to be delegated net station when (95 95 awaiting (95 transmission, (95 b. (95

– – – – –

THIS ISTHIS 4D

THISIS 4D THIS IS)THIS 06 IS)THIS 4D IS)THIS 69

should callshould and theNCS request totransmit. permission thetrafficWhen iscleared, having list totransmit stations messages

ROUTINE for 06 ROUTINE –

– TIME One EightZeroZulu One TIME Three of their ROUTINE message.

wer immediatelywer wouldnecessitatepreliminary E969making a OVER ch cases, the proword ASSUME CONTROLbe cases, used.ch theprowordASSUME isto – – – –

Send yourSend message Am closing down for three zero minutes closing down for minutes threeAm zero

SEND SEND PRIORITY send your send message

– – UNCLASSIFIED UNCLASSIFIED

THIS IS)THIS 4D

OVER –

OVER

TIME, etc. 6 -

10 –

– OUT

– OUT or, if higher precedence or, traffic is OUT

WAIT OUT WAIT der oftraffic his precedenceuntil list

AUTHENTICATION ISAUTHENTICATION

ACP 125(G)ACP Original –

81

t their message: –

ASSU ME

Uncontrolled copy when printed The NCS wishes to resume control of the net and transmits: controlThe wishesand toresume ofthe NCS net Example: CONTROLand give authentication: must 630. Subordinate stationreply inorde E969 then transmits: There reply isno Nothing theNCS.E969,as has from heard thesenior been transmits: subordinate station, Example: cannot the hear NCS. assume net controlbefo but, theyareIn such the net.normally cases, leaving senior stationwill subordinate the 629. answerThe subordinate inturn: stations

When the NCS re theNCS When (69 (69 CONTROL (3C (69 (69 3C Other occasions togive maya where arise in position isnot theNCS warning that (4D (4D (4D (4D (4D (4D

– – – – – – – – – – – –

THISIS 69

THIS IS)THIS 06 IS)THIS 92 THIS IS)THIS 06 IS)THIS 92 THIS IS)THIS 69 THIS IS)THIS 95 IS)THIS 78 IS)THIS 69 IS)THIS 81 IS)THIS 06 IS)THIS from the NCS, and transmit: NCS, theotherfrom stations the –

OVER –

– - 92 ROGER 92 ROGER joins the net, it does so using the proword I the net,joins doessousing proword it AMASSUMING the – – – – – – – – – – Have youHave anything4D heard from

ROGER ROGER ROGER NOTHING HEARD NOTHING HEARD re doing so, they must confirm onthe netre that other stations so,they doing must NOTHING from 4D HEARD ROGER ROGER ROGER ROGER WILCO ROGER r:

UNCLASSIFIED UNCLASSIFIED – – – – – – – –

OUT, etc. OUT OUT OUT OUT OUT OUT OUT

6 -

11

– –

OVER OVER

I AMASSUMING –

OVER ACP 125(G)ACP Original

Uncontrolled copy when printed concerning andreadability: signal strength 633. quality ofreception. such as byby “fivefive,”“four four,”etc., be will not INTERFERENCE,READABLE, WITHBUTLOUD DISTORTED, etc. Reports WEAK do soby and ofa concisereport means actual reception such short ofas, BUT WEAK 632. station cannot clearly another hear station. otherwise notified.readability Strength ofsignals andnotbeexchanged unlessone will 631. Checks,Re StrengthRadio Signal and replyThe subordinate stations inorder:

b. a. The are prowordsfor below listed useinitiatinganswering when and queries A stationthatwishes toinform ano understoodgoodA stationis tohave andreadability signal strength unless (4D (4D ZeroZulu 3C

– – –

THISIS 4D

THIS IS)THIS 06 IS)THIS 92 iv. iii. ii. i. Report of Signal Strength: iii. ii. i. General:

AUTHENTICATION ISAUTHENTICATION

called station. NOTHING HEARD forand (2) (3) below. beother must described it thanloudand clear, withthe pr Ifunderstood tomean thatreceptionloud andclear. reception is is of commentomission onsignalreadability strength and is ROGER youdo hear RADIO CHECK VERY WEAK. WEAK. GOOD. LOUD

– – – I AM ASSUMINGIAM CONTROL

ROGER ROGER ROGER .

Your very signal is strong.

Your signal strength is good.Your signal strength is . Your signal strength is weak. Your is signal strength

Iyour received have satisfactorily. lastThe transmission me? UNCLASSIFIED UNCLASSIFIED

– –

Your Your

OUT, etc. OUT . adability

What is my readability; signal strength What and how ther of hissignal strengthther andreadability of will 6

-

. 12

signal strength very is weak. To beis received usedreplyfrom whenTo a no X

- ray

Oscar Oscar

used toindicate strength and

– –

OVER

TIME OneTIME EightThree

ACP 125(G)ACP Original

owords

Uncontrolled copy when printed replying: whohadC206, strong was heard, not but andwas signaldistorted, strength by D381,who Z34D of each hisreception was indicates calledstations and loud ofthe clear except for replies order, ofeachare: in station, oftheAll stations collective call hear Z34D (net withY13C andradio transmits: callsign) desires a check (AssumingExample Use): Abbreviated Signs Call in Are HEARD (3C (4D (4D (4D (4D (4D (4D 3C c.

– – – – – – – –

THISIS 4D

THIS IS)THIS THIS IS)THIS 95 ISTHIS IS)THIS 69 IS)THIS 81 IS)THIS 06 IS)THIS 92 vi. v. iv. iii. ii. i. Report of Readability: v.

OUT ) 78 signal intermittent. is INTERMITTENT interference. INTERFERENCEWITH distortion. DISTORTED you.cannot read UNREADABLE READABLE CLEAR that continuous reception cannot berelied upon. FADING. 4D 4D

– – – – – – – – RADIO CHECK CHECK RADIO

ROGER ROGER INTERFERENCE WITHWEAK READABLEGOOD ROGER ROGER ROGER ROGER ROGER ROGER .

Theyourexcellent. is quality transmission of

At times your At times signal an extent strength fadestosuch

UNCLASSIFIED UNCLASSIFIED

.

.

The quality of yourThe quality transmis of – – – –

Z34D clear andexcept loudand C206 D381.The – Having trouble reading youHaving readingsignal trouble due to

OVER OVER OVER OVER . 06 LOUD06 DISTORTED

The quality of yourITheso bad is that quality of transmission . 6

Having

- 13 –

OVER

. –

Having trouble reading youHaving reading trouble due to trouble reading youyourtrouble reading because

OVER

OVER – sion is satisfactory.sion is

81

ACP 125(G)ACP Original –

NOTHING NOTHING

Uncontrolled copy when printed prepare WAIT their may response, WAIT theProwords dosousing OUT. or 636. Delay Response in respond:All stations Z34D completed just the having radio Example all other onthenet. stations STRENGTH AND READABILITY isusedt 635. other in order to: 634. ReadabilityStrength Report and loudandclear,In stations Z34D thereplyeventall wouldhave the hear been:

a. A stati (4D (4D (4D WITHINTERFERENCE and 78 (4D (4D 3C Performed Proword immediately REPORT aftera CHECK,the RADIO c. b. a. The may NCS determine howeach wishto net ofthe (3C (4D :

– – – – – – –

– THISIS 4D

THIS IS)THIS 4D THIS IS)THIS 95 IS)THIS 78 IS)THIS 69 IS)THIS 81 IS)THIS on, whoistransmitting orrequired thatneeds torespond, pause to to THIS IS)THIS 92 seconds) isrequired during which other time WAIT. experience other ofthe stations. inisolatingAssist problems transmitters with or receivers through the passage ofmessages between or stations, Determine ifrelay procedures(seepara Determineof the thesuitability operating frequency,

06 Advises thereceiving that a stations pause brief (uptofive – – – – STRENGTHREADABILTY AND REPORT – – – –

ROGER ROGER LOUD exceptStations 06 CLEAR AND All ROGER ROGER ROGER ROGER

ROGER ROGER ROGER ROGER

UNCLASSIFIED UNCLASSIFIED – – – – – – check:

OUT OVER OVER OVER OVER OVER –

6 WEAK READABLEWEAK -

14

o direct stations to report they to o directstations how receive

.

641

) will be required ) will stations arestations interrupt. notto stations arestations each receiving –

OVER

ACP 125(G)ACP Original –

OVER WEAK WEAK

for the

Uncontrolled copy when printed transmitted: IfNote: the had fora delay been than few H795 have longer seconds, H795would After pause, isready a H795 short and transmits: H795, notprepared toaccept the traffic immediately accept D381transmits: it. D381 wishes isready totransmitamessageand that toknow desires H795 to toH795 B:Example C206 E969, ready message, the transmits by toaccept theproword SEND: using accept transmits: C206 it. wishesC206 amessage totransmit ready toE969andif toknow desires E969is to A: Example before a transmitting message. whether isreadya be thestation called toreceiveawill message, sent preliminarycall 637. Preliminary Calls

transmits: SEND YOUR PRIORITY (81 95 (69 (06 69 communicationWhen difficult is orwhencalling the stationwishes toascertain b.

– – – – –

THIS ISTHIS 81 ISTHIS 06

THIS IS)THIS (06) IS)THIS 69 THIS IS)THIS 95 currentconversation. WAIT mayused astationtocease bytodirect OUT also NCS be the thei readystation is continue orrespond, establish a will to new they call. WAIT OUT. which transmit WAIT.may WAIT consecutively used times uptothree be at five seconds,a forpause, therefurther theoperator if may isneed again During theoperator release pause isto this thepress

point the Proword WAIT theProword bepoint must used. OUT – –

– – PRIORITY MESSAGE

– WAIT SEND

Advises when thereceiving thetransmitting that station(s) ROUTINE, etc. ROUTINE,

– UNCLASSIFIED UNCLASSIFIED

OVER

OVER

– –

OVER OVER 6

-

15

transmits:

-

to ACP 125(G)ACP Original - talk button. Aftertalk button.

r

Uncontrolled copy when printed be transmitted twice.groups words, may indicated Phrases, or and transmitted twice be 639. F178 transmits: Z34D transmits: F178, notreadthewords havingafter transmits: convoy, still Z34D transmits: tr F178,transmission, havingthe missed B:Example F178, having satisfactorily, received transmission the transmits: Z34D transmits: Exampl parts need only tobetransmitted and once preliminarycalls are optional. 638. Transmitting aMessage readyWhen toaccept t

Communications Difficult. (4D arrived (78 (4D has arrived (78 (4D (4D Zulu 78 Communications Good. 81 (81 e A: – –

– – –

– – – –

THIS ISTHIS 4D ISTHIS 95

THIS IS)THIS 95 THIS IS)THIS (4D THIS IS)THIS (4D) THIS IS)THIS (78) IS)THIS (78) IS)THIS 78 IS)THIS 78

OVER –

TIME One Six ThreeZuluZero One TIME Six –

TIME One Six ThreeZeroSix TIME Zulu One

he message,he H795would transmit: – –

SEND YOUR PRIORITY SEND – – PRIORITY

– –

WAITOUT – – SAY AGAINSAY ROGER ) ISAY AGAIN)

SAY AGAIN ALL AFTER ConvoySAY AGAINALL AFTER

ROGER I ConvoySAY AGAIN AFTER ALL

When communicationWhen receptionsatisfactory, is message UNCLASSIFIED UNCLASSIFIED

When When –

– – OUT

ansmits:

Convoy has arrived hasConvoy OUT 6 – communicationdifficult, is call signs should -

16

OVER –

78

– OVER

THIS IS 4D THIS – –

OVER OVER

TIME One Six ThreeTIME Zero One Six

– –

PRIORITY

ACP 125(G)ACP Original OVER –

Convoy has Convoy has

Convoy

Uncontrolled copy when printed A192 transmits: E969 transmits: ofcode consists The text groups. B:Example A192 transmits: E969 transmits: A192 transmits: E969 transmits: A192 transmits: E969 transmits: A: Example prowordBACK. READ by TWICE. the WORDS may Reception proword ofthe use of verified by use be E969 Charlie Zulu Yankee LimaAlfa MikeDelta Quebec OneZero ThreeZero TwoNineZulu PRIORITY A192 E969 BEFOREWORD has A192 BEFORE has E969 ThreeOneZulu Zero Six PRIORITY A192 E969 A1 92

– – – – – – – –

E969 E969 E969 E969 A192 A192 A192 A192

– –

– – – – PRIORITY PRIORITY PRIORITY – – – – –

THIS ISTHISA192 ISTHISA192 ISTHISA192 THIS ISTHISA192 WORD BEFOREWORD has THIS ISE969 THIS ISE969 THIS ISE969 THIS THIS ISE969 THIS

– –

Romeo OscarZuluYankee,Romeo etc. Charlie

WORD BEFOREWORD has

– – –

TIME One Six ThreeTIMEZeroZuluOne Six Convoy has arrived TIMENineOneZero Zero Zulu Two Three UNCLASSIFIED UNCLASSIFIED – – – – – – – –

A192 A192 A192 E969 E969 E969 E969 Alfa Mike LimaAlfaQuebec MikeDelta 6 - – 17 –

– SEND YOUR PRIORITYSEND YOUR – – – – – – –

GROUPS EIGHT GROUPS

OVER ROGER ROGER SAY AGAIN WORDS WORDS TWICE PRIORITY PRIORITY WORDS WORDS TWICE I SAY AGAIN –

– Convoy

– – Convoy has arrived

ROGER ROGER –

– SAY AGAIN –

IAGAIN SAY

– – – Convoy

GROUPS EIGHT GROUPS – WORDS TWICE TWICE WORDS – TWICE WORDS – ACP 125(G)ACP Original

OVER OUT OUT – – –

– OVER Romeo Oscar Romeo

OVER

– OVER

OVER – –

TIME TIME

WORD WORD

TIME

– – –

Uncontrolled copy when printed H795 transmits: A192 relays themessage: A192 transmits: Z34D transmits: Example: message toalladdressees. 641. Relay seek as necessary. repetitions On completion ofreceiving A192will entirereceipt transmission station themessage or Callsign E969pausesallow tobreak another briefly required. inif to station Example: anybe in nolonger transmission. than 20seconds one another breakwith station to in 640. MessageLong Procedure

FROM 4D 95 (4D Zulu 92 The alone proword used indicatesthe stationcalled relay RELAY that isto the entire message). transmitting periods in20second repeating procedu the (92 IS)(THIS (92) FOLLOW (92 (69 92 Long isrequired Message Procedure spentand onthe airallow toreduce time

– – – – – –

– THIS ISTHIS 92 ISTHIS 4D ISTHIS 69

– THIS IS)THIS 92 THIS IS)THIS (69) IS)THIS (69) IS)THIS

FROM 4D

– –

OVER TO 95 – –

– – SEND SEND 92 –

– –

PRIORITY LONG MESSAGE MESSAGE LONG

RELAY RELAY

– – – TO 95 TO – ROGER ROGER –

Proceed on mission assigned assigned Proceed onmission Text (continue withremainder of again message, Text (transmit for 20seconds maximum Text OVER SEND SEND precedenceif required. length Transmission traffic should –

OVER – UNCLASSIFIED UNCLASSIFIED –

Proceed assigned onmission – –

PRIORITY

– OVER OUT

TIME One One OneOne OneThreeZulu TwoTIME Two

6 -

18

OVER –

TIME OneOneTIME Two One Three Two

OVER re as necessary to transmit asre necessary totransmit –

OVER ACP 125(G)ACP Original ) –

MORE TO

the –

Uncontrolled copy when printed radiotelephone other by means net communications. such some When relay of is radiotelephone isnecessary it Attimes, torelay a procedure. messa InNote: has relayed case, D381 themessage this to B420, whoisan off D381 relaysto B420 themessage F178 transmits: D381 transmits: transmits: C206 B:Example H795 transmits: A192 relays themessage: A192 transmits: Z34D transmits: A: Example the proword RELAY TO. called,station is precedesign thecallwill toperform ofthe relay stationdesignated station call 642.

(06 (06 – 81 FourZulu 81 (92 Two Zulu 95 (4D ZuluTwo Two 92 The followedaddress designator proword TO the byindicates an RELAY that (92

OVER – – – ed relay indicated. message isto one When more the than tothe stations – – – –

78 ISTHIS 92 ISTHIS 4D

THIS IS)THIS (95) THIS IS)THIS 95 THIS IS)THIS 78 IS)THIS THIS IS)THIS 92 –

THIS ISTHIS 06 –

Proceed on mission assignedmission Proceed on –

81 FROM C206 –

– Proceed on mission assigned onmission Proceed –

– – –

FROM 4D FROM – RELAY TO 95 RELAY

ROGER ROGER ROGER ROGER Roger Roger

– ROGER ROGER

81 81

– – UNCLASSIFIED UNCLASSIFIED

RELAY 20 TO

– – – – OUT –

TO B420 – OUT OUT OUT PRIORITY

OUT

6 – -

19 PRIORITY

– –

INFOD381 OVER – –

OneTwo One Three One TIME

ROUTINE –

OVER –

TIMEOne One One Three

F178 – ge originated onage originated TIME Two One Zero One TIME Two ACP 125(G)ACP Original – -

net station,using net BREAK –

Text Text

Uncontrolled copy when printed responsibility the topass Having the message passed been the not C206 resumes that informed has been replies:C206 D381 informs and C206 transmits requestsC206 D381torelayaB420. accepts messageunable is tor D381 but to Example: was received relay)they for that torelay able notbeen have themessage. the relaying inform the originating(station stationmust from whomthe message station 645. could have transmitted: In hadif the NCS knownthat they example, were E969they theprevious incontact with Example: indicatecontactstation to that therequired they with are able to 644. F178 transmits: F178 whoisknowntobe incontact torelayA192 E9 with through F178 attempts amessage totransmit directs contact cannot toE969but NCS them. The Example: station thatcan relaya message. 643. employedformatcommunications for for the ofrelay. means necessary, istheresponsibility it ofthe stationrelayingthe proper themessage touse

81 THIS IS81 THISOUT 06ROGER 20 IS06 THIS TO (DTG RELAY YOUR OR TO 81UNABLE TEXT) MESSAGE Inoriginating cannotsta all cases, the hear stationcanrelaying whetheror the 78 The MEallows a prowordare station whoknows third THROUGH thatthey in 92 78 The proword

– – – –

OVER ISTHIS 4D ISTHIS 78 ISTHIS 4D

RELAY THROUGH allows the NCS oranother THROUGH allowsindicate theNCS stationto RELAY a

– – – message.

RELAY TO 69 RELAY THROUGH ME THROUGH THROUGHRELAY 92

UNCLASSIFIED UNCLASSIFIED

– 6

- – Move now 20

OVER

OUT

OVER, etc.

relay themessage: 69: ACP 125(G)ACP Original

elay.

tion, tion,

Uncontrolled copy when printed D381, having received themessag now Z34Drepeats theword: therefore,after “Load” word for toberepeated: the Itrepeated. thatpart nownecessary not for to is themtorequest As C206hadalready heard for asked “At”to“Proceed” thephraseD381 it from and Inrepetitions. D381 missed from “Proceed” after “At” case, “Load.”word this to and the Havinggivea sta receipt C206thenext heard for themessage, havingC206, the nowreceived message satisfactorily,transmits: repetition Z34D therequest beforerequests dealsby with for repetitions other his C206 station the havingC206, “At” from missed to“Proceed,” transmits: Z34Dcalls for the twostations which traffic: he has A: Example Iproword SAY AGAIN. transmitting identify stationwill isbeing which preceded repeated with thatportion AFTER, wi conjunction ALL with BEFORE, BEFORE, TO, ALL WORD WORD FROM, AFTER, beforeor in receiptingmessage.for AGAIN, used the The SAY alone proword 646. Repetitions

(4D (81 (4D (4D ZeroZulu Proceed (06 (4D Oscar Troops ZeroZulu FiveZulu Two 06 wordsWhen areor repetitions stations missed toberequested doubtful,by s: –

– – ll be used for this purpose this be ll used for

– – – –

81

THIS IS)THIS 4D THIS IS)THIS (4D) THIS IS)THIS (81) IS)THIS 81 IS)THIS 06 IS)THIS 06 –

– – Ningpo

for return Ningpo for Ningpo return THIS ISTHIS 4D –

Proceed Hong Kong –

FROM 4D OVER – – – – –

– – ROGER ROGER OVER AGAINSAY SAY AGAINSAY I AGAIN SAY

– ROGER ISAY AGAIN

MESSAGE MESSAGE –

UNCLASSIFIED UNCLASSIFIED –

I SPELL .

TO 06 In thecomplying for withrequests repetitions,

e satisfactorily,transmits: – OUT

– OUT

6 To Arrive One Six MaySix ArriveOne To – – -

– – 21

WORD AFTER Load AFTER WORD FROM At TO ProceedFROM At TO –

– ROUTINE FROM At TO ProceedFROM At

– INFO 81

WORD AFTER LoadAFTER WORD November Ind November

– –

BREAK

TIMEZeroZero Eight One tion askstion for his ia November Golf Papa Golf ia November be D381asks, repeated.

– – – ACP 125(G)ACP Original –

Load Thousand One OVER At One Eight Zero EightAt One

– OVER –

At Eight ZeroAt Eight

One One

Over

Uncontrolled copy when printed F178, having receivedtransmits: message the satisfactorily, transmits: C206 E969 replies toC206: havingC206, before all address, missed transmits: the E969 transmits: A: Example requested. theretonearest includethe must precedingfollowing portion proword and/or the portion ofthe requestedall thatportionof theheading of followinga preceding or proword, orthat 647. D381 transmits: transmits: C206 Z34D transmits:a received fromstations, response having all relevant 5seconds, within transmitting thetransmits: repetition stationanswer request for thesequenceAlternatively, stationin answering, the second of nothavingthe heard B:Example

(69 IS 69 (06 (69 OVER FROM 69 06 Inrequesting ofthe repetitions heading a message,amay of repetition be (4D (4D ZeroZulu (06 (4D

– – – – –

– – –

78

THIS IS)THIS 06 81 THIS IS)THIS 06 IS)THIS 69 – THIS IS)THIS 81 IS)THIS 06 ISTHIS heading Requests betweenfor and any replies repetitions twoprowords.

PRIORITY –

THIS ISTHIS 69 THIS IS)THIS 4D – –

Proceed TO 06

) 81 – – – – – – – –

ROGER ROGER AGAINSAY I AGAIN SAY

ROGER ROGER ROGER – AGAINSAY

78 TIME One Eight One Six Two One EightOne FiveZulu Six TIME –

WORD AFTER Load AFTERWORD

– PRIORITY PRIORITY –

IAGAIN SAY

INFOB420 UNCLASSIFIED UNCLASSIFIED – – –

OUT OUT OUT – 6 – –

– -

ALL BEFOREALL 22

WORD AFTER Load AFTER WORD

TIME One Eight One Six TwoEightZ FiveTIME One One Six ALL BEFALL –

BREAK –

At TO ProceedAt TO –

One One ORE ORE –

Proceed convoy torejoin

– –

– OVER FROM

FROM – –

ACP 125(G)ACP Original At One EightZeroAt One

OVER –

– – OVER

06 OVER –

78

THIS ulu –

Uncontrolled copy when printed groupsactuallydoes received correspond not 649. theGroupChecking Count H795 transmits: D381 transmits: H795 transmits: Example: identification. used,portion required. thedate Where such requeststherereplies identify and tomust message well the beingas queriedas the 648. H795 transmits: D381 transmits: addressees, tran H795, havingportion between the missed thedate D381 transmits B:Example

When aWhen messagegroupscoded of consisting is beingof and received thenumber (81 CancelTwo my ThreeFour Eight One Zulu Two FourZero Zulu Nine Two One IS)(95 THIS 81 IS81 THIS 95 W (81 FourZero Zulu Nine Two One (95 (81 TwoZulu Eight FROM 81 95 (69

hen isnecessary it for after repetitions toask message a has receipted, been – – – – – –

THIS ISTHIS 81 THIS IS)THIS 78

THIS IS)THIS (95) IS)THIS (81) IS)THIS 95 THIS IS)THIS 95

: smits:

TO 95

– – SAY AGAIN yourZeroZulu NineSAY Four AGAIN One Two Two –

OVER – – I AGAIN SAY ROUTINE

– ROGER – – R AGAINSAY

INFO

ROGER ROGER OGER I SAY AGAIN

– UNCLASSIFIED UNCLASSIFIED –

– B420

– - OUT

– – – OUT time group ortime group fortime be used such shall

TIME Two FourZeroTIMEZulu Two Nine Two One

OUT FROM 81 FROM 81 – – 6

95 -

FROM TIME TO INFOFROM TO TIME

23

BREAK BREAK – with the group count ofthe message,the

FROM TIME TO INFO TO FROM TIME

THIS IS81 THIS - time grouptime information and the – –

TO 95 TO TO 95 TO

CancelTwo my Three Four One –

OVER – – –

INFO INFO ROUTINE

ACP 125(G)ACP Original – – –

OVER B420 OVER –

TIME Two TIME Two –

TIME Two TIME –

BREAK BREAK –

OVER –

Uncontrolled copy when printed C206 transmits: C206 Incorrect): BExample (Group Count D192 transmits: D381 transmits: D192 can group nowseewhich he the first letter ofgroup: each D381 checks his A192, havinggroups,received only 11 transmits: D381 transmits: Example to request arepetition. group. thereceiving enable Thiswill todeterminegroups whichmissing station and are questioned thegrouprepeats followedgroup count, letter bycount ofeach the theinitial the transmitting itconsiders station,if the re 651. thenalterstation must the group count accordingly. received i 650. groupsstating actually the numberreceived. of receiving a stationrequests check byproword transmitting CHECK GROUPS… the

(81 (92 (81 Oscar TangoMikeSierra Delta Golf Oscar (92 (81 Bravo Sierra OscarRomeo Tango OneGROUPS Two 92 groupsIn andall messages andwords are less, counted thecount where 50or is queried,When check stationwill thetransmitting and, ifthegroups number of

A (Group Correct Count s correct, indicate byproword will this The ofthe CORRECT. receiving use – – – – – –

THIS ISTHIS 81 IS)THIS (81) IS)THIS (81) THIS IS)THIS (92) IS)THIS 92 THIS IS)THIS (92) – X

Mike Delta Golf Golf Mike Delta -

ray group count against his transmission copy, againstgroup histransmission count and correct, transmits findsit

Oscar Mike BravoOscar Mike –

– ROUTINE – –

– – – CHECK GROUPS One GROUPS One CHECK

GROUPS OneGROUPS Two I SAY AGAIN Five SAY AGAINFiveSAY ROGER ROGER Delta Golf India GolfDelta

Foxtrot Mike Foxtrot –

– DeltaIndia November has missed and transmits: has and missed UNCLASSIFIED UNCLASSIFIED

LessGroups): Than 50

– –

TIME One Four TIME Four One

OUT – 6

OVER - ceiving beafterithas stationto incorrect X 24

- –

ray

Lima OscarPapa –

– –

– OVER –

Delta LimaDelta Foxtrot Mike Foxtrot

Oscar Oscar OVER

Two Zero –

OVER Papa IndiaPapa

SierraDelta Tango

Juliet X

Three Eight Zulu Three Eight -

ACP 125(G)ACP Original Juliet ray

Romeo FoxtrotRomeo –

– Tango Romeo Tango Romeo

OVER Tango –

Golf Golf X - ray –

Uncontrolled copy when printed Transmission thencontinues. transmitted followedgroup, by lastword, the or proword, transmitted.phrase correctly 653. CORRECTIONS groups.D381 then transmits therequested of the10groupsA192 thenwhicha request he arepetition miscount: has in sentD381 checks groupand count as findsthe correct A192 queriesgroup count: the D381 transmits amessagecontaining 6 (GroupExample CorrectCount followed by thecorrespondinggroup. each first letter of transmits theidentity the of considered the transmitting count stationrepeats tobeincorrect and group theoriginal 652. F178 transmits: transmits: checksgroupC206 against thetransmissioncopy,error, his count and his discovers different, transmits: F178,g noticing the that

When aWhen transmitting operator makeserror, the an (81 Golf One Papa (92 (81 Inall messagesgroupgroups, count withaexceeding receiving 50 ifstationis the (06 (78 (06 Bravo Yankee EightGROUPS 78

– – – – – –

THIS ISTHIS 06 – IS)THIS (78) IS)THIS (78)

THIS IS)THIS (81) IS)THIS 92 IS)THIS (06) THIS IS)THIS (92)

Juliet OVER

Golf Bravo Zulu Golf Bravo –

Three One Romeo Three Romeo One

OVER – roup count and the number of groups count of andtheroup are number he received has –

Mike Tango November – ROUTINE – –

– – – first,andgroup eleventh,every subsequentnumber tenth CHECK GROUPS Six Six GROUPS CHECK

ROGER Seven GROUPS CHECK

CORRECT CORRECT SAY AGAINSAY GROUPS Six Five Six GROUPS

More Than 50 Groups): ThanMore 50 – UNCLASSIFIED UNCLASSIFIED

Foxtrot OscarFoxtrot Uniform – – – 4

TIME Zero Four OneFiveZeroZulu TIME Two

OUT

Four One IndiaFour One groups A192. to –

6

OVER - – 25

One One TO Two Zero Two One TO One

– –

One Mike Four Sierra Uniform BravoSierra Uniform , so

– proword CORRECTION will bewill CORRECTIONproword

OVER

transmits:

Five November One OVER –

– Delta Oscar Papa

One One Sierra

ACP 125(G)ACP Original –

OVER –

Echo Lima Echo

– – –

Six

Two Oscar –

One

Uncontrolled copy when printed correction may be inthe final made element instructions provided thattheending sign 654. tr C206 D381 transmits: D: Example F178 transmits: C206 C: Example Z34D transmits: transmits: C206 B:Example H795 transmits: F178 transmits: A: Example

transmits: When anWhen made error is discovered butnot intransmission a immediately, (81 LongitudeZero Five Five One ThreeLatitude Zero Six One 06 (06 FROM 06 78 (06 X – 4D (78 arrive 95 ansmits:

- ZuluBravoAlfa ray – – – – – – – –

THIS ISTHIS 81 ISTHIS 06 ISTHIS 78 THIS IS)THIS 78

THIS ISTHIS 06

THIS IS)THIS 4D IS)THIS 95 THIS IS)THIS 06 – –

X S One

- – ray

TO 48

ix Threeix Lima Zero Quebec Alfa – – – – –

– –

PRIORITY ROUTINE X ThreeConvoy Romeo –

TIME Two Four Zero Seven OneZulu Two FourZeroTwo Seven TIME – ROGER

ROGER ROGER ROGER -

ROGER ROGER CORRECTION ray

X – UNCLASSIFIED UNCLASSIFIED - –

– – – Kilo, etc. ray –

OUT – – Longitude OneFiveZero One

OUT OUT

OUT

TIME One Four Zero Six FourZuluZero Two Six TIME Four One OVER Zero Three OneFourZuluTIME EightOne

Oscar – 6

- TIME One Zero One Two ZuluZero One TIME One Two

26

TO 78 –

– CORRECTION CORRECTION

CORRECTION

Text Text –

OVER –

– Zul ACP 125(G)ACP Original

Romeo Four should Four Romeo –

u Bravo Alfa CORRECTION –

GROUPS Nine GROUPS –

OVER –

Uncontrolled copy when printed E969 transmits: Example: message. 657. errorand it: therefore cancels During of transmission a messageE969realisesbeing the thattheis transmission sent in Example: DISREGARD TRANSMISSION THIS proword themessage OVEROUT, cancelled or may be b 656. MessagesCancelling F178 transmi Example: corrected, shouldbemade: message,serviceabbreviated anbe portion to message,identifyingthemessage and the 655. D95 tr Example: phrase be must properlyidentified. has beenmaking When not transmitted. correction, such a

ansmits: Seven OneZulu Two 78 A messagecompletely thathas only can been cancelledanother transmitted be by THIS TRANSMISSION unloadingZeroZulu TwoOne Three One at One 78 During of transmission a messageand the of uptothe transmission theending AFTER WORD Monday 95 (81 AFTERWORD Minus Hotel HoursSix Minus 95 If necessary itis corrections tomake after hasbeenafor receipt obtained a

– – – – –

THIS ISTHIS 69 ISTHIS 69 ISTHIS 78 ISTHIS 81

ts: THIS IS)THIS 95

– – – –

– CANCEL my One Zero Zero Six Z Six ZeroCANCELZero One my ROUTINE CORRECTION Arrive Will Tanks

ROGER ROGER

– – OVER

– Five – Onetime Zulu Four Six Two

OUT

Morning UNCLASSIFIED UNCLASSIFIED – – –

OUT

TIME One Zero Zero Six ZeroZero Six TIMEZulu Two One OVER –

OUT. 6 – -

– 27 My One Three One Five One Six Zulu One ThreeFiveMy One Six –

OVER

Grid Three TwoNine OneThree Five

– y proword use ofthe

the word, group proword, orgroupthe word, Proceed ero Two Zulu ero Two –

CORRECTION – ACP 125(G)ACP Original

DISREGARD DISREGARD –

TIME ZeroTIME – –

Be –

– gin

at

Uncontrolled copy when printed D381 transmits: transmits: C206 B:Example Z34D transmits: E178 transmits: Z34D transmits: A: Example respond theproword CORRECT: with call. Uponaccurate reading thereof, orportion message back the origina BACK BACKTEXT, GRID,transmitted etc., immediately READ following will be the the proword andBACK identifyingREAD READ BACK e.g., data; READ TIME, 659. READ BACK Sabine Raider transmits: Example: be must OUT. transmissions DOANSWER authenticated. NOT complete betransmitted will prowordNOT DOimmediately ANSWER call, and followingthe the 658. Transmissions ANSWER DO NOT

Six FiveSix 81 (78 Convoy has (4D ZeroZulu 78 If isdesired it thata orportion message thereof IS……AUTHENTICATION accordance Charlie with Plan SAY AGAIN Charlie Siphon isimperative it When thatthecalled answer donot stations the a transmission,

transmission will be will senttransmission twice, thefullendingthe proword transmission with – – –

THIS ISTHIS 06 ISTHIS 4D

THIS IS)THIS (4D) THIS IS)THIS 78

– –

THISIS Raider TIME Tw

– OVER

arrived OVER –

Siphon Siphon

– –

READ BACK READ GRID – READ BACKREAD o Two Oneo Two EightZulu –

– I BACK READ

TIME One Six Three OneZulu Zero Six TIME

CORRECT CORRECT –

THIS ISTHIS Raider –

DO NOT ANSWER UNCLASSIFIED UNCLASSIFIED

– –

TIME Two Two OneZulu EightTIME Two Two OUT – – 6

Convoy has arrived hasConvoy - OUT 28

78

Meet Me GridMeetFour Two One Three – –

DO NOT ANSWER DO ANSWER NOT

THIS IS THIS 4D AUTHENTICATION IS……. AUTHENTICATION

be read accuracy, toensure back be –

Act accordance in withPlan –

OVER –

ThreeTime One Six READ BACKREAD ACP 125(G)ACP Original

ting stationwill – –

Act in –

I

Uncontrolled copy when printed Z34D transmits: D381 reads back: Exam attention tothe error ofthe WRONGfollowed bycorrect proword use by the version: 661. The remaining then stations D381 transmits: Z34D transmits: Example: remaining keep will called unlessdirected silent calling receipt. stations bystationto the theorderWhen toreaddirected isgiven,only back stations read todosowill those back; specifiedthe appropriate by transmitting ca represented are be inthecall required or will toread station thosestations that back, arethat all stations If toreadback. used,butonlya is collective call the stations of part 660. to indicate receiptmessage. ofthe Note: READprocedure BACK When not necessary theproword isemployed, ROGER is transmits: C206

ple: (81 Convoy has arrived (4D If thestationreadingdoes originating soincorrectly, call back stationwill the (4D (4D Convoy has arrived (4D ThreeZuluZero 3C The BACK,when proword READ notpreceded byide (81 OVER (06

– – – – – – – –

THIS IS)THIS (06)

THISIS 4D

THIS IS)THIS 81 THIS IS)THIS (4D) THIS IS)THIS 81 IS)THIS 06 IS)THIS 92 IS)THIS 81

– –

– – OVER – – – – BACK81 READ

– – ROGER

I BACK READ confirm receipt: –

ROGER ROGER I BACK READ I BACK READ

CORRECT CORRECT TIME One Six Two Zero OneZulu Six TIME Three OneZulu Zero Six TIME

WRONG WRONG

UNCLASSIFIED UNCLASSIFIED – –

OUT OUT – –

TIME

6 OUT ll signs preceding BACK. signs READ theproword ll -

GRID 29 – – etc. –

3C 3C 3C

Convoy has arrived has Convoy

– – One Six ThreeZulu ZeroOne Six –

THIS IS 4D THIS IS 4D THIS

One Three Five OneFour Two Six

– –

ntifying callsigns, means ntifying callsigns, means OVER

OVER – –

81 READ BACK BACK 81 READ BACK 81 READ – ACP 125(G)ACP Original

TIME One Six TIME Six One

OVER – – –

Uncontrolled copy when printed consideration, in the net may one station directed toreceipt for be themessage and no 663. D381 transmits: Z34D transmits: Example F969 transmits: transmits: C206 Example the meaning ofWILCOincorporates thatofROGER. be not used is Note: inconjunction withtheWILCO proword ROGER The proword as as follows: considered receiptseeA r delivered isobtained bbelow). (but until 662. Receipt Z34D transmits: D381 transmits:

When thetransmittingWhen handling stationconsiders speed a of primary (4D 81 (06 OVER 69 c. b. a. Receipt isemployed indirect station (81 (4D

B A – –

: : – –

– –

THIS ISTHIS 4D ISTHIS 06

THIS IS)THIS 69 IS)THIS (4D) THIS IS)THIS 81 I THIS

to use the proword WILCO. Note:to usethe proword WILCO. An addressee agreed reporting instructionor order compliance withan is consideredasno confusion alik is receipt if Where may abbreviated force, procedureisin a transmission return be messages ROGER. bytheproword areceiptThe receiving station transmits message aftereach orstring of

S) (81) (81) S) – –

Send vehicle Send for mail – Move tomy location Move

ROGER ROGER – – WILCO WILCO

CORRECT CORRECT Three OneZulu ZeroTIME Six UNCLASSIFIED UNCLASSIFIED – –

OUT OUT – 6

- -

OUT

30 to -

station traffic handling.No message is – –

OVER ZuluOneTIME Seven Four One

elyarise. to –

OVER eceipt may effectedeceipt be ACP 125(G)ACP Original

Uncontrolled copy when printed C206 andC206 H795,transmits: Z34D,message a wishes intransmitting toY13C B:Example E969 responds E969, transmits: C2 A: Example receipt. traffic use will totransmit theprowordTO FOLLOW MORE intheending message or 664. H795 transmits: Z34D transmits: H795, havingword the“mail,” missed transmits: D381 transmits: Z34D transmits: D381. Z34DStation sends and a Y13C a tothe message collectiveonlycall receipt from desires Example: for all transmissions. from requesting Security thesame repetition. directed stationistoreceipt if isenhanced other may instructed stations doesanswer until todoso.This prohibitany not station 06, intransmitting a messagetoindicate that traffic hehas toE969wishes for further

(06 IS69 THIS 06 At theendconversation, ofa a stationwishing toindicate that isfurther there (4D (95 (4D IS)(THIS 81 OVER 3C

– – –

– –

THIS IS)THIS 4D

THISIS 4D

THIS IS)THIS 69 THIS IS)THIS 95 IS)THIS 95

– ROGER

TEXT TEXT – – – – –

Sen

I AGAIN SAY ROGER ROGER ROGER ROGER AGAINSAY d boat for mail d – –

MORE TOFOLLOW OUT UNCLASSIFIED UNCLASSIFIED – –

OVER

OUT 6 – – -

31

WORD AFTER for AFTER WORD

WORD A WORD

TIME One Two One Six ZuluTIME Two One One Six

to indicate that hehas traffic further for

FTER forFTER –

OVER –

OVER

mail ACP 125(G)ACP Original –

OVER –

81 81

Uncontrolled copy when printed Z34Dacknowledgment: amessagetoD381 and an desires transmits Example: Procedurefor only addresseeI be by the by originated using proword ACKNOWLEDGE. the mayamessage,confirm can requesta acknowledgment theresponseto receipt of for 666. acknowledgment a new constitute will ofthatincluded inthe text If message. themessage has beentherequest transmitted, for an acknowledgment for desired is request for normally a acknowledgment message,the is from ofthat any mes orall addressees 665. Acknowledgment Messages of transmits: C206 tra C206, E969, inreceiptingmessage toindicatea thata forfrom wishes hehasmessage C206 for C: Example Z34D theirmessage transmits The net responds:

An acknowledgment be not a confused should receipt; anoperator whilst with It the theprerogative acknowledgment is originator of torequest an toamessage (69 (06 (06 (4D (4D (4D (4D (4D (4D 3C nsmits:

– – – –

– – – – – –

THISIS 4D

THIS IS)THIS 06 IS)THIS (69) 95 THIS IS)THIS 95 IS)THIS 78 IS)THIS 69 IS)THIS 81 IS)THIS 06 IS)THIS 92 acknowledgment of tactical signals is containedacknowledgment in para of tactical signals

THIS IS)THIS 4D – – – – – – – – TEXT TEXT

SEND SEND ROGER ROGER OUT ROGER OUT ROGER ROGER ROGER ROGER

ROGER ROGER

, etc. – – UNCLASSIFIED UNCLASSIFIED

MORE TO FOLLOW MORE TOFOLLOW

OVER – – – –

sage by using the proword ACKNOWLEDGE. Ifsage bytheproword using ACKNOWLEDGE.

– message.

OVER OUT OVER OUT

MORE TOFOLLOW 6

-

32

FOR 06and 95 –

OVER ACP 125(G)ACP Original

.

710

.

OVER

Uncontrolled copy when printed be incorre 668. H795 transmits: transmitted was correct, transmits: Z34D the originator, checksestablishes with operator thatthe heading previously Z34D transmits: H795 transmits: Example: be transmitted accordingly. VERIFY. identifiesto theoriginator anais Where or error then correction cancellation verificationa message(or of parts verifying thereof) theprowordI the stationreplies with thereof) Requests use forwith theproword originator. VERIFY. verification Upon addresse 667. Verifications transmits: authorised representative and theD381 operator, messagecommanding hisduly officer shown or tothe having D381 transmits areceipt for themessage:

When aWhen message to ofaddressees toanumber found queried by one is stationand IS)(THIS 95 – Zero OneZulu BEFORE BREAK 95 (95 BEFORE BREAK 4D verificationWhen ofa a portionthereofhasan messageor requested been by One FiveZulu One Two 4D IS)(THIS 81 TwoZulu Zero 81 e, the originating station will seek confirmation ofthee, seekmessage theoriginating portions stationwill confirmation (or

OVER

ct, the corrected versionct, besent must all addressees. the corrected to – – – – –

THIS ISTHIS 4D ISTHIS 4D

THIS ISTHIS 95 ISTHIS 81 THIS IS)THIS 4D

– –

– ROGER ROGER –

FROM 4D TO 95 FROM – – – – OVER

– – – Search AreaSearch VERIFY Your One Zero Zero Eight ZeroZeroEightOneZuluVERIFY Your One ZeroOneYour OneZulu Two IZero EightZero VERIFYZero MyZulu One One

95 OVER ROGER ROGER having been toacknowledge directed message, the –

– – –

THIS ISTHIS 4D

OUT (or WAITOUT) or WAIT OUT

OVER

UNCLASSIFIED UNCLASSIFIED –

OUT (orWAIT WAITOUT) or Delta

6 – -

33 INFO 06 – –

ACKNOWLEDGE PRIORITY PRIORITY

GROUPS OneGROUPS Seven –

IACKNOWLEDGE –

TIME EightZero Zero One

– ACP 125(G)ACP Original

TIME One One One TIME

– – –

BREAK BREAK

ALL ALL –

TIME

Uncontrolled copy when printed Example: directed netthefollowingform: take should 672. theSilence stationbreaking until be will maintained the inhaspassed message.” 671. of tactical report to enemy except messages contact. 670. may break inand 669. Break D381 and F178 transmit: a correction toallthe original addressees. “proceed”Kong” “Hongof“Haiphong.” been have should instead He therefore transmits F178 ope F178 transmits: D381 transmits: Example:

- In ProcedureIn Break The precedence“Ce spokenmeans, threetimes Note: Break c. b. a. A stationhaving higher thetransmissioninprogress aprecedence than messageof (78 (78 AFTERWORD Proceed 81 (81 Proceed 78

rator checks the message checks andrator the after withthe originator findsthattheword

– – – – –

69 ISTHIS 81

THIS IS)THIS 69 IS)THIS 81 IS)THIS 78 - in procedure for messages of precedence FLASH on eitherFLASH forfree or ain procedure a messagesofprecedence net on messages be should interrupted. PRIORITY. directed beobtained.transmitapproval the message net, must to call maytransmitting bebefore themessage, made ifnecessary. Ona IMMEDIATE para FLASH –

THIS ISTHIS 78 thus suspend that transmission inthe following thattransmission circumstances:thus suspend Haiphong Haiphong . -

in procedure will notnormally will in procedure employed be during thetransmission 671

.

. Break in at once andBreak transmitaccordance the message inatonce with in –

– – – VERIFY Your Zero Your Five EightZulu Four VERIFY

ROGER OUT ROGER OUT ROGER ROGER – As for IMMEDIATEfor As except ROUTINE long that only –

. OVER

Maybreak CORRECTION –

Hong Kong UNCLASSIFIED UNCLASSIFIED

OUT (orWAIT WAITOUT) or

6 in at once and message.in atonce pass the Apreliminary -

34

OVER

My Zero EightF My

ase transmissions immediately. transmissions ase

our Five ZuluFiveour ACP 125(G)ACP Original –

WORD AFTER WORD

Uncontrolled copy when printed transmission: IMMEDIATEAs soonas the messagereceipted, been has D381 A192 transmits: E969 transmits: transmits: NCS D381, hearing break E969’s IMMEDIATE A192. D381pauses,E969transmits: messageWhen for D381 istransmitting a PRIORITY messageZ34D when E9 to Example: illustrated inthefollowing examples: 673. D381 then cont A192 transmits: message D381pauses, toA192.When for E969transmits: transmission D381 is

b. 4D (69 (92 (69 authorisation, A192transmits: (69 for 92 IMMEDIATEIMMEDIATEIMMEDIATE a. Break 4D (69 FLASH FLASH FLASH transmittingIMMEDIATE an messagetoZ34Dwhen a E969ishanded FLASH

– – – – – – –

THIS IS)THIS 92 IS)THIS 4D

THIS ISTHIS 81 ISTHIS 81 THIS IS)THIS 92 THIS IS)THIS (92) IS)THIS (69)

- – in procedure for messages of IMMEDIATE forin procedure orPRIORITY messagesof precedenceis On Free Nets: On DirectedNets:

transmission: inues withhis

OVER

– – – – –

ALL AFTERALL AFTERALL

SEND SEND – – Send yourIMMEDIAT Send - ROGER in, ceases transmission

ROGER ROGER IMMEDIATE –

– 92 UNCLASSIFIED UNCLASSIFIED

OVER –

– OUT

THIS ISTHIS FLASH 69

OUT – –

6 etc. etc.

-

35 –

Text Text

E – –

OVER – 4D 4D

OVER Onhearing this –

THIS ISTHIS 69

69 is handed anhanded 69 is Text Text

continues his continues – ACP 125(G)ACP Original

OVER

IMMEDIATE

Uncontrolled copy when printed stations ortocombinestations twoseparatea nets specific activity. for theother, range toextend and vice used net isola may ofa to be versa. Rebroadcasting of receivinga onone transmission netacross andautomaticallyrebroadcasting the it or m 674. Rebroadcasting A192 then continues transmission: his E969 transmits: Z34Dcontinues: A192, hearingceases theprecedence spoken threetimes, transmission PRIORITYE969. WhenA192pauses,Z34D transmits: messagefor A192 istransmitting a longZ34D toD381when ROUTINEmessage a ishand B:Example A192 then continues transmission: E969 transmits: Z34Dcontinues: A1 IMMEDIATE E969. A192pauses,Z34D When transmits: message for A192 istransmitting a PRIORITYZ34D message when an ishanded toD381 A: Example 92 hearingceases theprecedence spoken threetimes, transmission

ore radio(operatingonseparate throughcapable radio frequencies) nets equipment Rebroadcasting, referredretrans, or toasrebro sometimes theactoflinking is two 81 (4D 69 PRIORITYPRIORITY PRIORITY 81 (4D 69 IMMEDIATEIMMEDIATEIMMEDIATE – – – –

– –

THIS ISTHIS 92 THIS ISTHIS 92 ISTHIS 4D THIS IS)THIS 69 THIS IS)THIS 69

IS 4D – – – –

ALL AFTER ALL AFTER ALL – PRIORITY IMMEDIATE

ROGER ROGER ROGER ROGER

UNCLASSIFIED UNCLASSIFIED – –

OUT – OUT

– – Text Text

– etc. etc. 6

Text Text – -

36

OVER –

OVER OVER –

ACP 125(G)ACP Original

ted

Uncontrolled copy when printed The NCS transmits to all The transmits to NCS subordinate stations: A,imposingExample silence radio by ofa use nickname: 677. 676. Ele REBROADCASTING NET respectively. YOUR throughNCS YOURSTOP theuseNET prowords and ofthe REBROADCAST intermediate of when by and station,control rebroadcastingisactivated the deactivated each rebroadc ofthe toremainNCS awarewhen reside ofrebroadcastingwhich on and stations isoperating of 675. ctronic, Emergency Radio and Silence

3C 3C c. b. a. Radio Silence: c. b. a. Electronic Silence: Managementa rebroadcasting ofthe requires dedicatedeffort of net onbehalf

THISIS 4D authentication. achieved Liftingpredetermined designator. orbreaking silence radio may be normallyThis will the use ofcodewords, by or nicknames, be other Radio silence betheinstructions given. isto imposedinaccordance with described inpara are by tobepassed any secure Emergency available. means is silence predetermined, instructionsfor imposing, breaking lifting, or silence radio Radio silence may be or predetermined nets, for which isresponsible. it Radio silence orliftedonthenet, station may by thecontrol beor imposed or self duringif thathas station not electronic silence silence tobebrokenrequestauthenticationstation which oftransmits a induce aelectronic silence break of messages.Onnoaccount by false is All stations authentication.codewordsand/or transmission the procedureor breaking. lifting for use normally includeof Thiswill the circumstancesand may bywhom it inwhich, lifted orbroken as be well as The orderswhich clear, by radio. codeword, or over secure and means, no Orders of be theelectronic issued for silenceinadvance imposition by will asted frequencies. rebroadcastingasted by Whilst isconducted an - authentication for lifting forauthentication silencean emergency break. or

in the same way, orin the self same use orbyoftransmission the –

must bemust ontheir by guardagainst attempts theenemy to PAPER DOLLPAPER

.

impose electronic detail the impose also will silence 677 UNCLASSIFIED UNCLASSIFIED

connected .

6 – -

37 OVER

executive order

may occur inanemergency.may occur When

given thepropercodeword is tobe passed is ACP 125(G)ACP Original -

in the

Uncontrolled copy when printed 678. The transmits: NCS Example silence.lift Note: The remainder net ofthe maintainsdoes radio not silence; abreakstation by one Z34D transmits: transmits: A192 has authority and reason,the conditions within ordered, tobreak B,Example silence breaking authentication: by radio oftransmission means changing using frequencywhen nicknames. Note: proced This The transmits: NCS nicknameby isunderstood restating intheir reply: it Each answers subordinate station inturnand

c. b. a. Emergency Silence: IS ………. 3C ISTHIS 4D IS……….. 4D (3C (4D (4D

C, liftingC, radio authentication: silence by means oftransmission

– – – –

THISIS 4D THIS ISTHIS 92

THIS IS)THIS 4D THIS IS)THIS 06 IS)THIS 92 transmissions. and OUT. donotanswer ended receipt Stations or such withthe proword Transmissions imposing emergency will silence silence,calls orwhich during stations of emergency periods silence. which imposesalways orliftsemergency authenticatea transmission aWhen authentication transmission system must inforce, is a station authority Emergency(radio) may only be imposedorlifted silence by competent

ure cannot bedistinguished the procedure from cannot closingure forand down – –

OUT OVER

ROGER ROGER .

– –

– – Sighting Report – SILENCE LIFTED SILENCE

PAPER DOLLPAPER DOLLPAPER PAPER DOLLPAPER

OUT UNCLASSIFIED UNCLASSIFIED

6 – - – – 38

– confirms to the NCS thatthepurpose tothe NCS confirms ofthat TIME……….

OVER OVER OVER OUT

TIME……… TIME………

etc.

-

AUTHENTICATION be made through twice –

AUTHENTICATION ACP 125(G)ACP Original radio silence.radio He

Uncontrolled copy when printed BODYGUARD, the NCS transmits: BODYGUARD, the NCS To impose emergencyall silencenets subordinate including nets, on codeword using the C: Example To impose emergency only, on134.25MHz all silencestations transmits: NCS on the B:Example transmits: theNCS C74, To impose emergency onthefrequencyall silencestations on in A: Example To impose emergency silence transmits: the NCS onthenet, Example: AUTHENTICATION ISAUTHENTICATION……. OUT FIGURES Decimal OneFour Five Three Two SAY AGAIN 3C ThreeFour Five Decimal Two 3C AUTHENTICATIO IS 4D TIME ……… 3C g. f. ………… OUT. SILENCE SILENCE SILENCE ISAUTHENTICATION……….. 3C e. d.

– – –

THISIS 4D THISIS 4D THISIS 4D – “Cease immediatelyall transmissions onall nets.” SILENCE more “all spokenfollowed times nets” threeor by means frequencyfrequencydesignator).” ………(or indicated by the frequency “Cease immedia all transmissions designator means SILENCE more a spokenfollowed frequency times threeor by or immediately.” means addressed “Stations are net onthis all transmissions tocease After a lifted” net onthis transmissions immediately. bemaintained Silenceuntil will The proword spoken means threemore SILENCE “Cease times or

SILENCE SILENCE SILENCESILENCE SILENCE

– call, three SILENCE proword use spoken ofthe times ormore

AUTHENTICATION ISAUTHENTICATION ………..

– – – –

T SILENCE SILENCE SILENCE SILENCE SILENCE SILENCE SILENCE SILENCE SILENCE SILENCE SILENCE N IS………..OUT N HIS IS HIS 4D

UNCLASSIFIED UNCLASSIFIED

– – – TIME …….

SILENCE SILENCE SILENCESILENCE SILENCE TIME …….. – 6

- IAGAIN SAY

39

Charlie Seven Charlie Four –

AUTHENTICATION IS……. AUTHENTICATION –

TIME …….

AUTHENTICATION ISAUTHENTICATION – – – – –

IAGAIN SAY

3C 3C TIME…….. FrequencyFIGURES One Charlie Seven Four dicated by the designator by dicated

THISIS 4D ACP 125(G)ACP Original – –

TIME …….. TIME …….. – –

Frequency –

tely on

3C 3C –

– –

THIS

– –

I

Uncontrolled copy when printed Z34Dclose ordersthe A: Example meansdown. He ofthe or DOWN CLOSE mayby proword by nickname. dothis regardingarran the 681. by and, wherever notby secure themost possible, means radio. know, the and of new time reopening. frequency necessary The are orders always passed subordinate being station,without completely thatthestationsknow, satisfied care never stations downa be byan control toclose must taken net,individual or 680. Down Closing requirement tore 679. using th Lifting emergencyfor ona all stations frequency indicated silence designator by C74, the B:Example L A: Example codeword transmissi or repeatNote: must Subordinate NCS on theirdifferent message ownnets this a using ifting emergencyfortransmits: theNCS ifting ona all stations net, silence

3C 3C isessential order it When to a close toclosedown priorNo stationis without permission from The the NCS. greatest Followingaelectronic needs period the orradioNCS ofsilence, consider to the 3C ……… 3C h. – – 3 e codeword TOWER, the NCS transmits: the NCS e codeword TOWER, C BODYGUARD IAGAIN SAY – – – –

THISIS 4D THISIS 4D THISIS 4D THISIS 4D

codeword,etc. phrase nets”followed “all andauthentication by transmission or a qualified where necessaryfrequency,aby the a frequency designator, or EmergencyLIFTED, SILENCE by islifted silence use ofthe the proword –

- AUTHENTICATIONIS ………. establish communications byestablish ofa means check. radio gements close for reopening,stationto the orders net he orsubordinate - down ofBLIND thenet SPOT: thenickname down using on authentication. – – – – – –

3C 3C

SILENCE LIFTED SILENCE LIFTED SILENCE SILENCE SILENCE SILENCE BLIND SPOT OUT

THIS ISTHIS 4D

UNCLASSIFIED UNCLASSIFIED

– 6 -

down over radio, andtheis satisfied NCS radio, down over - OVER 40 –

SILENCE SILENCE SILENCE SILENCE

– –

Charlie Seven Four Charlie TIME

OUT

All nets

ACP 125(G)ACP Original –

TOWER TOWER

BODYGUARD BODYGUARD

or will –

All nets All

OUT

Uncontrolled copy when printed Z34D transmits: havingAll stations, correct, theauthentication checked reply is inturn: Z34D ofclose thenet down theprowordDOWN: ordersthe CLOSE using B:Example Z34D transmits: nicknameby isunderstood restating intheir reply: it Each thatthepurpose answers tothe NCS subordinateconfirms ofthat station inturnand (3C (4D (4D 3C (3C (4D (4D – – – – – – –

THISIS 4D THI

THIS IS)THIS 4D THIS IS)THIS 06 IS)THIS IS)THIS 06 IS)THIS 92

S IS) 4D S

92 ROGER 92 ROGER – – – – – – CLOSE DOWN CLOSE

SPOT BLIND ROGER ROGER BLIND SPOT BLIND SPOT CLOSE DOWN CLOSE UNCLASSIFIED UNCLASSIFIED –

– OVER

OVER 6 – – – - –

41

OUT OVER, etc. OVER

– AUTHENTICATIONIS…….. –

OUT

etc.

ACP 125(G)ACP Original

OVER

Uncontrolled copy when printed be repeated prior to transmission of theprowordbe repeated when: EXECUTE prior totransmission latter wordofexecution. The being theinstant The executivethe text. signal inthe besent form will later STANDBY FOLLOWproword EXECUTE intheinstruction, immediately message TO preceding 708. Delayed Executive Method 707. Executive Methods the message ending. 706. which arefound intactical publications. which ofone consists more letter,signal or flags, words, theprearrangedmeanings or of 705. whose call precedethep signs acknowledgeIn receipt oftactical circumstances, messages. these thosestations only 704. Executive Method. 703. isthepurposeit ofthischapter procedure. toamplify thebasic 702. given instant; 701. General

b. a. A tactical sent message bythe b. a. ThereareMethods: twoExecutive Message chapter this Thea term referstype of “signal”in message, to used thetext of communicationsWhen aregood, necessary isnot it called all stations to have Abbreviated no is format plaindress The operating inChapter rules 6applyExecutive Method;however, equally tothe The Executive execute Methodusedwhen a is isdesired it tactical to message at a

that is, toensurethat is, take thattwoor action more moment. at units the same signal. EXECUTE T of anA considerableelapsed has time between the transmission messages. It several one a outstandingTO is portionof,or FOLLOW EXECUTE Immediate Executive Method. Delayed Executive Method. s sent by Executive Method arehavegroups sentby Executive toa never in time included

O FOLLOW message of theexecutiveO FOLLOW and the transmission

EXECUTIVE METHOD roword OVER receipt forroword themessage. receipt OVER UNCLASSIFIED UNCLASSIFIED CHAPTER 7 Delayed Executive Method carry will Delayed Executive thewarning

rmally messages byfor usedtransmitted the 7 -

1

text ofthe messageexecutedtext shall being

ACP 125(G)ACP Original

EXECUTE, the EXECUTE,

Uncontrolled copy when printed A192 and F178 transmit: readyWhen OneZ34DFormation transmits: Two, toexecute andC206 H7 Z34D transmits: To execute a outstanding portionofan Method signal, Delayed Executive B:Example D381 readyWhen Z34D toexecute, transmits: respondAll stations alphabetical in signs:full call of order Z34D transmits: A: Example transmits: OVER 3C (4D (4D Speed Two Five 3C (4D 3C (4D (4D (4D (4D (4D (4D 3C – – – –

– – – – – – – – –

THISIS 4D THISIS 4D THISIS 4D THISIS 4D

95 transmit: THIS IS)THIS 95 IS)THIS 06 IS)THIS 81 IS)THIS 95 IS)THIS 78 IS)THIS 69 IS)THIS 81 IS)THIS 06 IS)THIS 92

– – – –

BREAK BREAK – – – – – – – – – EXECUTE TO FOLLOW EXECUTE Standby TO FOLLOW EXECUTE Formation OneFormation Two

ROGER ROGER ROGER ROGER ROGER ROGER ROGER ROGER ROGER ROGER ROGER – UNCLASSIFIED UNCLASSIFIED –

06

– – – – – – – – – EXECUTE EXECUTE

OUT OUT OUT OUT OUT OUT OUT OUT OUT –

95 7 -

2 –

OVER –

– Standby

BREAK

– –

OneFive Eight Corpen Formation OneFormation Two

EXECUTE EXECUTE –

81 –

OVER ACP 125(G)ACP Original –

92, 78 –

Tack Tack –

– OVER

Uncontrolled copy when printed Method.” ItMethod.” that: benoted should final ofthe instructions message termedExecutive tobeexecutedthe “Immediate is inparamethod and thatlaiddown instructions element ofthemessage To differentiate towhichitrefers. this between 709. Immediate Method Executive E969 and H795transmit: Later,a several after pause m of D381 and F178 transmit: To exe C: Example andC206 H795transmit: readyWhen Z34D transmits: remaining toexecute the portion,

cute aZ34D Delayed transmits: Executive Method signal, a. Incases of (4D (4D OVER 3C (4D (4D 81 3C (4D (4D 3C (4D (4D

– – – –

– – – – – – – –

78 THISIS 4D THISIS 4D THISIS 4D

THIS IS)THIS 92 THIS IS)THIS 95 IS)THIS 69 IS)THIS 78 IS)THIS 81 IS)THIS 95 IS)THIS 06 ISTHIS

the message isexecuted. acknowledgmentsobtain verifications, orcancellations repetitions, before ImmediateThe Executive Method use doesnotallowstation ofthe –

OVER

urgency, signal theexecutive inthe mayfinal be transmitted ) 78

– – –

– – – – – – – – EXECUTE TO FOLLOW EXECUTE Standby Formation OneFormation One

ROGER ROGER ROGER ROGER ROGER ROGER ROGER ROGER ROGER

inutes, Z34Dand transmits: toexecutetheinutes, wishes signal

.

708 UNCLASSIFIED UNCLASSIFIED –

– – – – – – – – EXECUTE EXECUTE

, the transmission of theexecutive, thetransmission signal the in

OUT OUT OUT OUT OUT OUT OUT OUT 7 -

3

Standby Standby –

06

– –

Formation OneFormation One 95 – –

EXECUTE

OVER

ACP 125(G)ACP Original –

69 – –

BREAK BREAK

95 s to –

Uncontrolled copy when printed A192 transmits: messagea before The commandingof A192 close officernot in proximity, is the ordesires toconsider Z34D tr Example: in the usual manner and theprowordlater, when send WILCO ordered. theoperatorproword when doesnotexist, ROGER. situation shall receipt However, this answering used proword ofthe inreceipting result, WILCOwill be will the inlieu commanding or representative close tothenodelay officer authorised operator,and is i cases, theword adds “acknowledge”asthe When thelast theoriginator wordinthetext. signal b manoeuvre,of not require only quiteacknowledgment often theunderstandingof 710. Acknowledgement Signals of andC206 F178 transmit: Z34D transmits: Example:

BREAK One Five 92 ofaSignals, required difficult which accomplishment thepurport of the (4D (4D Standby Speed One Eight 3C d. c. b. ut also the capabilities ofthe addresseeut alsothe capabilities toperformIna manoeuvre. such such ansmits:

– –

– –

95 THISIS 4D

THIS IS)THIS 78 IS)THIS 06 SAY AGAIN. signal executive The is oftheThe signal text I transmitted twice, is by separated proword the EXECUTE TO FOLLOW. EXECUTE isusedinthemessage instructionsinstead ofthe proword usingWhen signals. language, tobasic TURN,and CORPEN, SPEED orshouldbe limited MessagesImmediate Executive Method beinplain made should by the –

cknowledging. – THIS ISTHIS 4D

EXECUTE OVER

Tack

Zero ZeroZero – – I AGAIN SAY IMMEDIATE EXECUTE the Immediatethe Executive Method, theIMMEDIATE warning

ROGER ROGER ROGER – –

EXECUTE TO FOLLOW EXECUTE TO FOLLOW 06 – UNCLASSIFIED UNCLASSIFIED

78 – –

OUT OUT –

OVER

– – 7

Turn Nine - Tack

4

One TwoOne transmitted inthe final instructions.

– –

BREAK BREAK

Tack –

Uniform Golf Two – –

ACKNOWLEDGE ACKNOWLEDGE

Speed One Eight OneSpeed Eight –

Turn Nine ACP 125(G)ACP Original

Tack Tack –

Tack –

n

Uncontrolled copy when printed (This leavessignal theoriginal only“Quebec with H795 transmits: Z34Dcorrect, transmits: After withthe originating thesignal verifying officer,finding andoriginal version is the Z34D transmits: H795 desires of signal: thefirst a of verification portion the D381 transmits: A,verification:Example addressee isoperatingcircuit operator.) orisclose the tothe separated by the“Tack.”(The beVERIFY used when before word receipt the may taken from chapterprocedures except that verifications laiddownin ofsignals six orrepetitions 711. RepetitionsVerifications and readyWhen A192 transmits: toacknowledge, H795 transmits: acknowledge. The commandingof H795 officerinclose is andoperator proximityto directshis

(4D – 95 (95 (4D (4D X 3C Verifications oftactical andare repetitions with inaccordance made messages 4D (4D (4D

- Tack ray One – – – – a naval signal book must befor bookmust the or portions transmission fora entire signal naval those

– – – – –

THIS ISTHIS 4D

THIS THIS

THIS IS)THIS 4D

THIS IS)THIS 92 THIS IS)THIS 95 IS)THIS 95 IS)THIS 81 IS)THIS 95 –

OVER

– IS 4D IS 92

BREAK

– – –

– – – – – – WILCO WILCO I VERIFY EXECUTE TO FOLLOW EXECUTE

ROGER ROGER VERIFY ROGER WILCO ROGER ROGER ROGER –

81 81 – UNCLASSIFIED UNCLASSIFIED –

95

– (your last transmission) – – – – – –

OUT

OUT OUT OUT (orWAIT WAITOUT) or OUT – FOLLOW TOFOLLOW Tack FOLLOW TOFOLLOW

OVER 7 -

5

X - ray

– –

Zulu One

Tack One” awaiting execution.) One”

– FOLLOW FOLLOW – –

OUT

OVER ACP 125(G)ACP Original

Tack

Zulu Zulu –

Quebec

One

Uncontrolled copy when printed Example D,repetitionsExample oftheany whole portionofthe or text: repetition C, Example of thecall when unknown: Z34D transmits: H795 desiresoftherepetition signal: a D381 transmits: B,Example request repetition: for H795 transmits: EXECUTE: Z34Dboth outstanding TOnow executeon signals FOLLOW may EXECUTE with All station Z34D signal: transmits anew then A1 Two TackOne 3C (4D FOLLOW 95 EXECUTE TO FOLLOW UNKNOWN STATION – Zulu One ISTHIS 4D (4D (4D X 3C (4D 3C 3C

- ROGER ray One s receipt inthe normal manner. – – – – –

– – – –

THIS ISTHIS 4D THISIS THISIS 4D THISIS 4D THISIS 4D

THIS ISTHIS 95) IS)THIS 95 IS)THIS 81 IS)THIS 95

– – –

– OUT OVER BREAK

4D I SAY AGAI –

Tack –

– – – –

Tack Five Tack – – – – I AGAIN SAY

EXECUTE TO FOLLOW EXECUTE Standby TO FOLLOW EXECUTE EXECUTE TO FOLLOW EXECUTE

SAY AGAINSAY ROGER ROGER ROGER ROGER – –

81 81

Quebec –

THIS ISTHIS 95 – – N UNCLASSIFIED UNCLASSIFIED

– OVER 95 –

– – – – EXECUTE EXECUTE

92 3C 3C – OUT OUT OUT X

OVER - – – –

ray – 7

OVER

- 3C 3C

OVER THIS ISTHIS 4D 6

One

SAY AGAIN SAY AGAIN

THIS IS 4D THIS –

– 95

BREAK BREAK

– – – –

Turn Starboard TackTangoTurn Nine Zulu One Zulu Seven

OVER –

EXECUTE TO FOLLOW EXECUTE TO FOLLOW

– – –

ALL BEFOREALL 95 EXECUTE TO – ACP 125(G)ACP Original

OVER THIS IS OVER THIS 95 –

Tack –

OVER – –

Quebec

Uncontrolled copy when printed To cancel tothe same call await allsignals transmitted and A: Example messagesproword NEGAT.be Suchcan individually cancelled asgroup. a or 713. TacticalCancelling Messages E969 transmits: Z34D transmits: BExample Taken (ActionIndicated): tobe at Time F178 transmits: Z34D transmits: A(ActionExample tobeTaken onReceipt): message. indicates that actionto betaken isofthe otherwise onreceipt text indicated unless inthe the messageusegroup ofa acti ending. time The ona tacticalordering message ImmediateExecutive Method or Executive Method havegroup should included a in time 712. Non Execution of

3C 3C Tactical requiring messages shallbe cancellation cancelled ofthe by theuse (4D BREAK 69 ( 78 Tacticalfrom donotemploy taken messages asignal bookwhich Delayed (4D TangoAlfa (69 (4D (4D 4D

– – – –

– – – – –

THIS ISTHIS 4D ISTHIS 4D

THISIS 4D

THIS IS)THIS 4D THIS IS)THIS 92 THIS IS)THIS 69 IS)THIS 78 IS)THIS 69 IS)THIS 69

TIME One Seven One FourZuluOne OneTIME Seven - Exec –

OVER utive Method Messages – – –

– – – – – –

Station BravoThree Station Yankee Mike FourYankee Mike NEGAT NEGAT

ROGER ROGER ROGER ROGER AGAINSAY ROGER I AGAIN SAY

UNCLASSIFIED UNCLASSIFIED – – – – – TIMEZulu One EightThree One

OUT OUT OUT OUT – 7

– -

Alfa to Starboard 7

Starboardto Alfa –

– Tack

TIME One Six Four Two ZuluTIME Six One

OVER OVER –

Tango One Tango EightAnswer ing execution: ing

– OVER

Starboard Nine TackStarboardNine ACP 125(G)ACP Original

OVER

on –

OVER

Uncontrolled copy when printed signal transmitted. been EXECUTE has 715. executed, onlyremainder of the themessage isconsideredtobeo 714. To cancel a C: Example To cancel oneof signals several execution: awaiting B:Example

Messages sentby theExecutive Methodbecancelled cannot theExecutive once aWhen message isawaiting or ofithasbeen executionand a portion cancelled OVER 3C ZuluFive 3C – –

portion ofaexecution: signal awaiting

THISIS 4D THISIS 4D

OVER – –

NEGAT NEGAT NEGAT UNCLASSIFIED UNCLASSIFIED – –

SpeedFour One Turn Nine Tack 7 - 8

– –

SpeedFour One TIMEZuluFiveOne 81 utstanding. ACP 125(G)ACP Original –

TIME OneTIME 81

Uncontrolled copy when printed Z34D transmits: Example: 803. Z34D transmits: Example: at acertain using phrase time, “Timeat……..” Check the prepare may of their NCS announceintention transmitting watches. The a check time his phrase c and the onthenet,all stations theya pause sufficientperiodwill warning between oftime the 802. transmits: C206 Z34D transmits: requiresC206 clock and transmits: tocheckhis Ex (GMTZULU akaunless otherwise Time)ordirected. requested addition ofa four “Request check.”at time isrequired whichthe The check may by be the indicated 801. SynchronizingMethod Time of ample:

Alternatively, may abe check by theDelayed time made Executive Method. Two One operators toprepare) 3C the occasionShould when give arise an desires theNCS accuratecheck time to (4D ZeroZulu Two Seconds (06 4D If be an isdesired, will requ accurate timeit check

– – – –

THISISCh 4DTime THIS ISTHIS 06

THIS IS)THIS 4D THIS IS)THIS 06

ommencement of the countdown to allow allommencement of receiving thecountdown to to operators

– - –

figuregroup.checks begiven will inGreenwich Time One ZeroOne Seconds

TIME Zero Nine Three ZeroNineZero ThreeTIME Zulu MISCELLANEOUS PROCED –

– OVER

– – Request time check time Request

ROGER ROGER CheckTwoZeroEight Zulu(pause) OneFive OneTime –

One FiveOne Seconds

eckZeroZulu atZeroNine Three toallow (Pause UNCLASSIFIED UNCLASSIFIED CHAPTER 8 – –

FiveTwo ThreeOne Four OUT 8 -

1

OVER –

One ZeroOne Seconds

OVER

ested byusing thephrase URES

TIME OneTIME Eight

ACP 125(G)ACP Original –

Five Four ThreeFive Four Mean Time Mean

Uncontrolled copy when printed (or any theevent operatorin onthe net operator the net totake control fails action), aWhen station number combination which transmitted immediately tothe stationdisclosing an EEFI. 808. continued use subject during is local operations to operational security policy. 807. of non increased thesecurityawareness securityan in among overall and operators improvement operators onthe disclosed onthe report net. other Additionally,BEADWINDOW serves toalert the operatorsEssentialInformationfact Elementan of Friendly the(EEFI)has thatbeen police thes 806. BEADWINDOW Procedure to their use apply. will 805. (InExample Clear): groups.and Grid ‘north direction’ referencesprecededGRID. are by theproword if a pause(i.e., between thetwodirectionalgroups ismadethe‘east between direction’ all letters are pronounced phonetically.gridreference tobe A inc 804. Grid References H795 responds: Z34D transmits theexecutive then signal 1415: withthe coincide time to E969 responds:

- secure communications. voice The BEADWINDOW procedure (BEADWINDOW) aa codeword and uses BEADWINDOWUse ismandatory of exercis and during training rapidBEADWINDOW isasimple, use for by procedurecircuit operators to gridWhen encoded references low are infixed – 4D All grid references,and thoseencoded,character by including are character, sent ISTHIS 95 3C ISTHIS 69 BREAK 3C

OVER – – – ecurity ofnon

THISIS 4D THISIS 4D THIS ISTHIS 69

on thenet transmitsinformation listed inan EEFI, operator net control the

– net of the EEFI actsaid, ofthe andas an producingnet disclosure thus educational

69 – –

ROGER ROGER –

OVER – - – – secure voice networks. It bringssecure voiceof networks. toimmediate attention

Enemy at GRID atEnemy GRID Standby TO FOLLOW EXECUTE

– –

OUT OUT UNCLASSIFIED UNCLASSIFIED –

EXECUTE EXECUTE 8 – -

2 Thre

– e Two Six Six e Two

95

- – – grade relative instructions codes,

Tango One FourOneZuluTango OneFive

OVER –

(pause)

lear iseasierlear tointerpret ACP 125(G)ACP Original - Eight Four Seven Eight Four

es; its however

Uncontrolled copy when printed rapid reference. ListThe EEFI posted inclear for beoperatorat should sight ofthe allvoice positions categories(e.g. accomplishednew 8,9, byEEFI adding categories (i.e., operationaland included plans ororders. inoperations commanders This may be exercise understandingBEADWINDOW of operations Additional EEFIs reports. specific or for or key phrase has toeach allocated been EEFIease forand oftraining rapid 811. 810. fromnet below), control the list theoperatorwillcalland theoffending transmit: station 809. been disc transmits thecodewordBEADWINDOW, followedEEFI by has number which ofthe the 5 4 3 2 1 Number Key

Approved generalbelow. EEFIsAnappropriate broad for useare keyword listed R The onlyauthorised replyBEADWINDOW report to a is: BEADWINDOW ONE If Example: andiscloses a (disclosing position ship’s one operator EEFI number s may be developed ands mayEEFIs bebroad expandednations orby by individual developed

OGER losed. Personnel Warfare Elec Operations Capabilities Operations Key Word tronic , 21

– Table

OUT. -

force composition, 22 composition, force

8 friendly enemy or operations participants Operational or logistic intentions Friendly enemy or operations fuelof or ammunition remaining equipment, weapons systems, units sensors, or personnel. Percentages identity; capabilities limitations, significantor casualties to special Friendly enemy or or capabilities limitations, force compositions, or ground element, unit or force position, course, speed, altitude, or destination of any air, sea, or Friendly enemy or position, movement intended or movement, Definition limitations movement key of maintenance personnel indicati enemy flag officers, distinguished visitors, unit commanders Friendly enemy or key Movement personnel. or identity friendly of or EMCON policy Electronic Warfare Support Measures (ESM) objectives ECM of intention employto ECM Friendly enemy or EW/EMCON

- 1

Essential Element of Friendly Information List –

. OVER

– UNCLASSIFIED UNCLASSIFIED

flying programs –

equipment affected by EMCON policy – - force 23 capabilities,

8 results of friendly enemy or ECCM - 3

results of friendly enemy or ECM . .

– –

intentions, progress, or results.

mission situation reports . –

intentions, progress, results, or assault objectives and 10 ) or existing by expanding - force limitation, etc.).force limitation,

presen ACP 125(G)ACP Original ng equipment

– t intended or

mission . –

results of results of –

Uncontrolled copy when printed 10 9 8 7 6 Number Key

Spare Spare Spare Circuit Wrong COMSEC Key Word

For assignments as required. For assignments as required. For assignments as required appropriate to the purpose for which the circuit is provided because eitherit requires greater security protection or notis about beto transmitted which should not be passed on subject circu Inappropriate transmission. Information requested. Transmitted or encrypted/classified call signs call signs with previous linkageor with line numbers/circuit designators codewords with plain language Friendly enemy or COMSEC breaches Definition

UNCLASSIFIED UNCLASSIFIED 8 - 4 call signs or units

.

– –

incorrect authentication procedure

compromise changing of frequencies –

linkage codes of or –

compromise of – ACP 125(G)ACP Original

linkage changing of .

.

it

Uncontrolled copy when printed the former withAbbreviated method Procedure used is (para Plaindress Ingroupas the thefourthof or message component text. of t 906. Examples Enemy of Reports Contact authority. authentication sh and negative inplain language reports Lackacode. brevity or of, or incorrect, 905. 904. screen indicated may station be inthepreamble before precedence. 903. except: communication withofficerhigher intacticalauthority, command, orshoreradio station, 902. EnemyTransmission of Reports Maritime as chapter. modified inthis enemy Detailsare inAllied contained contact of reporting 901. Introduction

(69 ZuluThreeIS AUTHENTICATION Seven ………. X 4D a. The component WHEN ofbe report thecontacttransmitted either may time as the Authentication, when making when inforce, be should amplifying, used initial, If aBACKbe desired originator, READrequested may (para by the astationedWhen thatis ship ona anemergency screen signal,the transmits alarm b. a. Enemycontact are normally reports made when only once to be indirect Enemy becontact transmitted using shall radiotelephone reports basic procedure, PROCEDURES FOR REPOR

-

Tactical Instructions andTactical procedures,Instructions ATP ray – –

THIS ISTHIS 69

THIS IS)THIS 4D

X i. Initial Reports: ending. is made twice,by separatedI AGAIN, withatime SAY of consists thetext When emergency signals,inwhichcase alarm thetext usingWhen -

ray ould not preventould not re

One FourOne

InitialForm inStandard report as transmitted –

– FLASH FLASH DO NOT ANSWER procedureDOANSWER (para NOT

ROGER ROGER

CourseFive Two Seven

– UNCLASSIFIED UNCLASSIFIED - CHAPTER 9 transmission ortransmission relay higher message ofthe to

LocatingOne One Serial –

OUT 9 -

1 TING ENEMY CONTACTS

-

01,

Speed Nine –

OVER – he followingexamples, . 4D Delta

658

: ACP 125(G)ACP Original

).

– group in the .

504 Time Zero Nine Time – .

Zero 95 Zero ). 639

).

Uncontrolled copy when printed 907.

(92 Zulu Nine Zero 4D a. Amplifying Reports: ISAUTHENTICATION……. TwoFive FiveFive Tango Tango 92 ZeroZulu ManyBogies 4D (4D ZuluFive Juliet 81 ZuluFive Juliet 4D (81 – Tango) 4D ( OVER Eight TackEight One 4D 4D

AUTHENTICATION IS ………. AUTHENTICATION – – – – – – – – –

– –

DO NOT ANSWER ISTHIS 4D

THIS ISTHIS 92 ISTHIS 92 ISTHIS 81 ISTHIS 81 ISTHIS 95

THIS IS)THIS 4D THIS IS)THIS 4D – Juliet Juliet THIS ISTHIS IS)THIS 4D

AUTHENTICATON ISAUTHENTICATON ……….

First Amplifying using Report Bre v. iv. iii. ii. – TIME One Three Two Six Zulu Two Six TIME Three One

Two Four Six FourTwo Six

– – –

– – AUTHENTICATION ISAUTHENTICATION ……….. ISAUTHENTICATION ……….. Three Zero FiveZero BonOne CapeThree Two

ThreeZero Zero Quebec Eight One Quebec ThreeZero Zero Quebec Eight One Quebec – ) 81 InitialNOT procedure, ReportANSWER DO using as transmitted: as transmitted: Initial FormBACK Report READ inAbbreviated using procedure, Initial Report Brevity using Code, as transmitted: Initial Report using

Two Five FiveFive TangoTwo Five Tango – –

– – – – – – AUTHENTICATION ISAUTHENTICATION I SAY AGAINI SAY

– – – READ BACKREAD Five Station DO NOT ANSWER DO FLASH IMMEDIATE I BACK READ –

CORRECT CORRECT ROGER ROGER ROGER ROGER ROGER –

Two Two –

FLASH – UNCLASSIFIED UNCLASSIFIED

LocatingOne One Serial – – –

OUT OUT – OUT

OUT – FLASH FLASH – – –

emergency alarm signals,emergency alarm astransmitted: OUT

9 Emergency Quebec Zero FourFiveZero Quebec TackEmergency One

– – Closing Locating SerialOne Two FLASH – – -

2

FLASH OV Closing Locating Serial One Two

– – ER

vity Code, asvity transmitted: AUTHENTICATIONIS …………. OVER FLASH –

……. IAGAIN ……. SAY

EmergencyFourFiveZero Quebec –

– TIME OneZeroZuluZeroTIME Nine –

LocatingFour One Serial – –

LocatingFour One Serial

TIME Two Three Zero Two ThreeZuluTIME One OVER OVER

– – –

TIMEZeroZeroOne Four Closing

LocatingOne Two Serial –

Few BogeyOscar (or – –

TIME Zero Four FourFour ZeroTIME Four ZeroTIME – ACP 125(G)ACP Original

– TIME One Nine

Altitude ZeroAltitude

– –

Many BogiesMany

4D

THIS ISTHIS –

– Three

Three

Four – – –

Uncontrolled copy when printed THIS ISTHIS 4D ISAUTHENTICATION……… QuebecOne Eight 4D e. Three – T 4D d. IS)(THIS 95 ……… Zero Five Eight 95 ……… Zero Five Eight 81 c. (92 ……….. One Eight 4D b.

hree

4D – – – – – –

THIS ISTHIS 81 ISTHIS 95

THIS ISTHIS 06 – ISTHIS 06 ISTHIS 92 THIS IS)THIS 4D – –

THIS ISTHIS 06 Negativeas transmitted: Report, Amplifying DOas NOTprocedure, transmitted. ANSWER Report using Ampl Book, as transmitted: Amplifying Report us

– – Altitude One Zero Zero One Altitude Zero Zero One Altitude – OVER OVER

– OVER

– Three OneZuluZeroTIME Three ifying READ BACK Report procedures, using as transmitted: –

ROGER ROGER

CORRECT CORRECT – –

– – – – –

TIME Zero Four Five ZeroZero FourFive Zulu TIME ZeroZero FourFive Zulu TIME

READ BACKREAD – – – DO NOT ANSWER IMMEDIATENOT ANSWER DO IMMEDIATE IMMEDIATE I BACK READ

Tack Tack ROGER ROGER DO NOT ANSWER IMMEDIATE NOT ANSWER DO –

OUT – – UNCLASSIFIED UNCLASSIFIED One Two

ing groupsMaritimefrom Tactical the Allieding Signal OUT –

OUT – – –

– AUTHENTICATION ISAUTHENTICATION …… ISIAUTHENTICATION …… SAY AGAIN – –

OVER

9 IMMEDIATE – My One Three Two Five Zulu ThreeMy One Two Five Neg -

3 IMMEDIATE –

TIME One Eight Four Six ZuluFour EightOne Six TIME ative Enemy

AUTHENTICATION ISAUTHENTICATION – – –

Locating Four

– AUTHENTICATION ISAUTHENTICATION ISAUTHENTICATION –

Locatin

Zero TwoQuebec Seven – – Locating Two Serial

Locating Serial Two ACP 125(G)ACP Original g Four –

– – OUT

Papa Tracking –

Tracking –

X

- ray

Uncontrolled copy when printed