NZ Amateur Radio Certificate

Total Page:16

File Type:pdf, Size:1020Kb

NZ Amateur Radio Certificate 1 NZ Amateur Radio Certificate Block Course Study Notes www.nzart.org.nz Teachers Edition © NZART 2019 2 June 2019 Table of Contents INTRODUCTION ..................................................................................................................... 4 General Amateur Operator’s Certificate Prescription ........................................................... 5 Amateur Examination Procedure and Format ....................................................................... 5 Section 1 – Radio Regulations .................................................................................................. 6 Radiocommunications Regulations (Extract from -RSM MBIE) ....................................... 11 Question File: 1. Regulations: (7 questions) ........................................................................... 17 Section 2 – Frequencies ........................................................................................................... 29 Question File: 2. Frequencies: (2 questions) ....................................................................... 30 Section 3 – Electronics Fundamentals .................................................................................... 34 Question File: 3. Electronics Fundamentals: (2 questions) ................................................. 36 Section 4 – Measurement ........................................................................................................ 40 Question File: 4. Measurement Units: (1 question) ............................................................ 41 Section 5 – Ohms Law ............................................................................................................ 43 Question File: 5. Ohm's Law: (2 questions) ........................................................................ 44 Section 6 – Resistance ............................................................................................................. 48 Question File: 6. Resistance: (3 questions) ......................................................................... 51 Section 7 – Power Calculations ............................................................................................... 57 Question File: 7. Power calculations: (2 questions) ............................................................ 58 Section 8 – Alternating Current .............................................................................................. 62 Question File: 8. Alternating current: (1 question) ............................................................. 63 Section 9 – Capacitors, Inductors, and Resonance .................................................................. 65 Question File: 9. Capacitors, Inductors, Resonance: (2 questions) ..................................... 67 Section 10 – Safety .................................................................................................................. 71 Question File: 10. Safety: (1 question) ................................................................................ 73 Section 11 – Semiconductors .................................................................................................. 75 Question File: 11. Semiconductors: (2 questions) .............................................................. 76 Section 12 – Device Recognition ............................................................................................ 80 Question File: 12. Device recognition: (1 question) ........................................................... 81 Section 13 - Meters and Measuring .................................................................................... 84 Question File: 13. Meters and Measuring: (1 question) ...................................................... 85 Section 14 - Decibels ............................................................................................................ 87 Question File: 14. Decibels, Amplification and Attenuation: (1 question) ......................... 88 Section 15 Station Components .............................................................................................. 90 Question File: 15. HF Station Arrangement: (1 question) .................................................. 92 Section 16 Receiver Block Diagrams ...................................................................................... 96 Question File: 16. Receiver Block Diagrams: (2 questions) ............................................. 101 Section 17 Receiver fundamentals ........................................................................................ 106 Question File: 17. Receiver Operation: (3 questions) ....................................................... 108 Section 18 Transmitter Block Diagrams ............................................................................... 112 Question File: 18. Transmitter Block Diagrams: (2 questions) ........................................ 115 Section 19 Transmitter Theory .............................................................................................. 121 Question File: 19. Transmitter Theory: (1 question) ......................................................... 121 Section 20 Harmonics and Parasitics .................................................................................... 123 Question File: 20. Harmonics and Parasitics: (2 questions) .............................................. 124 Section 21 Power Supplies .................................................................................................... 128 Question File: 21. Power supplies: (1 question): .............................................................. 133 © NZART 2019 3 Section 22 Regulated Power Supplies ................................................................................... 135 Question File: 22. Regulated Power supplies: (1 question): ............................................. 137 Section 23 General Operating Procedures ............................................................................ 140 Question File 23: General Operating Procedures: (1 Question) ....................................... 151 Section 24 Operating Procedures and Practice ..................................................................... 153 Question File: 24. Practical Operating Knowledge: (2 questions) .................................... 157 Question File 25 Q Codes (1 question) ................................................................................. 161 Question File: 25. Q signals: (1 question) ......................................................................... 162 Section 26 Transmission Lines ............................................................................................. 164 Question File: 26. Transmission lines: (2 questions) ........................................................ 170 Section 27 Antennas .............................................................................................................. 174 Question File: 27. Antennas: (4 questions) ....................................................................... 179 Section 28 Propagation .......................................................................................................... 186 Question File: 28. Propagation: (5 questions) ................................................................... 190 Section 29 Interference and Filtering .................................................................................... 198 Question File: 29. Interference & filtering: (3 questions) ................................................. 212 Section 30 Digital Communications ..................................................................................... 217 Question File: 30. Digital Systems: (1 question) .............................................................. 221 Creating sample NZART Exam Papers ................................................................................ 223 © NZART 2019 4 INTRODUCTION All 600 questions used in the New Zealand Amateur Radio Examination are here with the Syllabus and other details. The New Zealand regulatory requirements are explained in the booklet “The New Rules Explained”, also available from NZART and from the website. Many overseas books cover the details in the other topics of the Syllabus. Borrow or buy them. Contact your local NZART Branch when you are ready for the examination. An examination can be arranged for you at a mutually-agreed time and place. If you have access to a computer, visit the NZART web site at: http://www.nzart.org.nz for examination information including a Study Guide for all parts of the syllabus. Good luck with your studies, we'll 'see you on the air'! Proposed Block Course Timetable Day 1 Day 2 0830 - 0900 3 Electronics 0830 - 0900 23 Operating 0900 - 0930 4 Measurement 0900 - 0930 24 Operating 2 0930 - 1000 15 HF Station 0930 - 1000 12 Devices 1000 - 1020 Break 1000 - 1020 Break 1020 - 1100 5 Ohms Law 1020 - 1100 13 Meters 1100 - 1130 7 Power Law 1100 - 1130 26 Transmission Lines 1130 - 1200 10 Safety 1130 - 1200 27 Antennas 1200 - 1230 Lunch 1200 - 1230 Lunch 1230 - 1300 16 Receivers 1230 - 1300 21 PSU 1300 - 1330 17 Receivers 2 1300 - 1330 22 Reg PSU 1330 - 1400 6 Resistance 1330 - 1400 14 dBs 1400 - 1430 8 AC Theory 1400 - 1430 28 Propagation 1430 - 1500 9 Resonance 1430 - 1500 29 Interference 1500 - 1520 Break 1500 - 1520 30 Digi modes 1520 - 1600 18 Transmitters 1520 - 1600 Break 1600 - 1630 19 Transmitters 2 1600 - 1630 Exam 1630 - 1700 20 harmonics 1630 - 1700 Exam 1700 - 1730 11 Semis
Recommended publications
  • Educational Electronic Information Dissemination and Broadcast
    DOCUMENT RESUME EM 009 266 ED 055 419 Singh, Jai P.; Morgan, RobertP. AUTHOR Dissemination and TITLE Educational Electronic Information Broadcast Services: History,Current Infrastructure and Public BroadcastingRequirements. INSTITUTION Washington Univ., St. Louis, Mo. SPONS AGENCY National Aeronautics and SpaceAdministration, Washington, D.C. REPORT NO IN-71/3 PUB DATE 9 Aug 71 NOTE 91p. EDRS PRICE MF-$0.65 HC-$3.29 *Broadcast Industry; DESCRIPTORS Audiovisual Communication; Broadcast Television; CableTelevision; Closed Circuit Television; *CommunicationSatellites; Dial Access Information Systems;Educational Television; Fixed Service Television;*Information Dissemination; Information Networks; InformationRetrieval; Information Services; InformationSystems; *Instructional Television; Radio;*Telecommunication; Television National Public IDENTIFIERS Corporation for Public Broadcasting; Radio; Public BroadcastingServices ABSTRACT This memorandum describesthe results of a study on electronic educational informationdissemination and broadcast services in the United States.Included are detailed discussionsof (both in terms the historical developmentand current infrastructure of organization and physicalplant) of the followingservices: educational radio and televisionbroadcasting, instructional information retieval (dial access) television fixed services (ITFS), The television, and closed-circuit,responsive, and cable television. creation of the Corporation forPublic Broadcasting, thePublic Broadcasting Service, and NationalPublic 1,tadio have
    [Show full text]
  • Federal Communications Commission
    FEDERAL COMMUNICATIONS COMMISSION WIRELESS TELECOMMUNICATIONS BUREAU FEE FILING GUIDE EFFECTIVE September 10, 2002 UNIVERSAL LICENSING SYSTEM ~218-219 MHz SERVICE ~LAND MOBILE RADIO SERVICE ~AIRCRAFT RADIO SERVICE ~LOCAL TELEVISION TRANSMISSION ~AMATEUR RADIO SERVICE ~MARINE COAST RADIO SERVICE ~AVIATION GROUND RADIO SERVICE ~OFFSHORE RADIOTELEPHONE ~BROADCAST AUXILIARY RADIO ~PAGING AND RADIOTELEPHONE ~CELLULAR RADIOTELEPHONE ~POINT-TO-POINT MICROWAVE – ~COMMERCIAL RADIO OPERATORS COMMON CARRIER & PRIVATE ~DIGITAL ELECTRONIC MESSAGE - ~RURAL RADIOTELEPHONE COMMONCARRIER & PRIVATE ~SHIP RADIO SERVICE ~GENERAL MOBILE RADIO SERVICE OTHER ~MULTIPOINT DISTRIBUTION SERVICE & ~COMPARATIVE HEARING This is an unofficial compilation of the radio services and requests for FCC actions that are subject to fees. The public should consult the Commission's Rules as set out in Title 47 of the Code of Federal Regulations (CFR) for application filing requirements. Further information on fees may be obtained in Part 1, Subpart G of the CFR or in the Commission's official decision implementing the Congressional Schedule of Charges. This decision is published in the FCC Record or may be purchased from the Commission's current copy contractor. The fee amounts contained in this guide are subject to review annually and may result in changes to these amounts. The FCC will issue a notice to reflect any changes. PART A IMPORTANT NOTICE OF CHANGE: The Remittance Advice 159 has been revised to accept payer and applicant FCC Registration Numbers (FRN). Effective December 3, 2001, the use of the FCC Registration Number (FRN) is now mandatory. Failure to register or include an FRN on your FCC Form 159 will result in your application being returned as unprocessable.
    [Show full text]
  • The Beginner's Handbook of Amateur Radio
    FM_Laster 9/25/01 12:46 PM Page i THE BEGINNER’S HANDBOOK OF AMATEUR RADIO This page intentionally left blank. FM_Laster 9/25/01 12:46 PM Page iii THE BEGINNER’S HANDBOOK OF AMATEUR RADIO Clay Laster, W5ZPV FOURTH EDITION McGraw-Hill New York San Francisco Washington, D.C. Auckland Bogotá Caracas Lisbon London Madrid Mexico City Milan Montreal New Delhi San Juan Singapore Sydney Tokyo Toronto McGraw-Hill abc Copyright © 2001 by The McGraw-Hill Companies. All rights reserved. Manufactured in the United States of America. Except as per- mitted under the United States Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher. 0-07-139550-4 The material in this eBook also appears in the print version of this title: 0-07-136187-1. All trademarks are trademarks of their respective owners. Rather than put a trademark symbol after every occurrence of a trade- marked name, we use names in an editorial fashion only, and to the benefit of the trademark owner, with no intention of infringe- ment of the trademark. Where such designations appear in this book, they have been printed with initial caps. McGraw-Hill eBooks are available at special quantity discounts to use as premiums and sales promotions, or for use in corporate training programs. For more information, please contact George Hoare, Special Sales, at [email protected] or (212) 904-4069. TERMS OF USE This is a copyrighted work and The McGraw-Hill Companies, Inc.
    [Show full text]
  • Comments of the National Association of Broadcasters
    Federal Communications Commission Washington, D.C. 20554 In the Matter of ) ) 2018 Quadrennial Regulatory Review -- ) MB Docket No. 18-349 Review of the Commission’s Broadcast ) Ownership Rules and Other Rules Adopted ) Pursuant to Section 202 of the ) Telecommunications Act of 1996 ) COMMENTS OF THE NATIONAL ASSOCIATION OF BROADCASTERS Rick Kaplan Jerianne Timmerman Erin Dozier Patrick McFadden Larry Walke Emily Gomes Daniel McDonald Theresa Ottina Loren White NAB Research September 2, 2021 TABLE OF CONTENTS I. INTRODUCTION AND SUMMARY .................................................................................... 1 II. THE FCC SHOULD FOCUS IN THS PROCEEDING ON ENSURING THE COMPETITIVE VIABLITY OF LOCAL STATIONS ....................................................................................... 6 III. THE FCC’S DECADES-OLD OWNERSHIP RULES HAVE NEVER SUCCESSFULLY PROMOTED DIVERSE OWNERSHIP OF RADIO AND TELEVISION STATIONS .................. 9 The FCC’s Rules Do Not Address The Central Challenge To New Entry And Diverse Ownership In Broadcasting, Which Is Access To Capital .................... 10 The FCC’s Ownership Rules Affirmatively Undermine Investment In Broadcasting And New Entry ............................................................................ 15 IV. REFORM OF THE OWNERSHIP RULES WOULD PROMOTE LOCALISM BY SAFEGUARDING THE VIABILITY OF LOCAL BROADCAST JOURNALISM IN TODAY’S BIG TECH-DOMINATED MARKETPLACE .............................................................................. 19 The FCC Cannot Ignore The
    [Show full text]
  • 448 Part 2—Frequency Alloca- Tions and Radio Treaty
    Pt. 2 47 CFR Ch. I (10–1–10 Edition) comments and following consultation with llllllllllllllllllllllll the SHPO/THPO, potentially affected Indian Chairman tribes and NHOs, or Council, where appro- Date lllllllllllllllllllll priate, take appropriate actions. The Com- Advisory Council on Historic Preservation mission shall notify the objector of the out- come of its actions. llllllllllllllllllllllll Chairman XII. AMENDMENTS Date lllllllllllllllllllll The signatories may propose modifications National Conference of State Historic Pres- or other amendments to this Nationwide ervation Officers Agreement. Any amendment to this Agree- llllllllllllllllllllllll ment shall be subject to appropriate public Date lllllllllllllllllllll notice and comment and shall be signed by the Commission, the Council, and the Con- [70 FR 580, Jan. 4, 2005] ference. XIII. TERMINATION PART 2—FREQUENCY ALLOCA- TIONS AND RADIO TREATY MAT- A. Any signatory to this Nationwide Agreement may request termination by writ- TERS; GENERAL RULES AND REG- ten notice to the other parties. Within sixty ULATIONS (60) days following receipt of a written re- quest for termination from a signatory, all Subpart A—Terminology other signatories shall discuss the basis for the termination request and seek agreement Sec. on amendments or other actions that would 2.1 Terms and definitions. avoid termination. B. In the event that this Agreement is ter- Subpart B—Allocation, Assignment, and minated, the Commission and all Applicants Use of Radio Frequencies shall comply with the requirements of 36 CFR Part 800. 2.100 International regulations in force. 2.101 Frequency and wavelength bands. XIV. ANNUAL REVIEW 2.102 Assignment of frequencies. 2.103 Federal use of non-Federal fre- The signatories to this Nationwide Agree- quencies.
    [Show full text]
  • 621 Part 101—Fixed Microwave Services
    Federal Communications Commission Pt. 101 APPENDIX 1 TO PART 97—PLACES WHERE 101.23 Waiver of rules. THE AMATEUR SERVICE IS REGU- 101.31 Temporary and conditional author- LATED BY THE FCC izations. In ITU Region 2, the amateur service is PROCESSING OF APPLICATIONS regulated by the FCC within the territorial 101.45 Mutually exclusive applications. limits of the 50 United States, District of Co- 101.51 Comparative evaluation of mutually lumbia, Caribbean Insular areas [Common- exclusive applications. wealth of Puerto Rico, United States Virgin Islands (50 islets and cays) and Navassa Is- LICENSE TRANSFERS, MODIFICATIONS, land], and Johnston Island (Islets East, CONDITIONS AND FORFEITURES Johnston, North and Sand) and Midway Is- 101.55 Considerations involving transfer or land (Islets Eastern and Sand) in the Pacific assignment applications. Insular areas. 101.56 Partitioned service areas (PSAs) and In ITU Region 3, the amateur service is disaggregated spectrum. regulated by the FCC within the Pacific In- 101.61 Certain modifications not requiring sular territorial limits of American Samoa prior authorization in the Local (seven islands), Baker Island, Common- Multipoint Distribution Service and 24 wealth of Northern Mariana Islands, Guam GHz Service. Island, Howland Island, Jarvis Island, King- 101.63 Period of construction; certification man Reef, Palmyra Island (more than 50 is- of completion of construction. lets) and Wake Island (Islets Peale, Wake 101.64 Service areas. and Wilkes). 101.65 Forfeiture and termination of station authorizations. APPENDIX 2 TO PART 97—VEC REGIONS 101.67 License period. 1. Connecticut, Maine, Massachusetts, New POLICIES GOVERNING MICROWAVE RELOCATION Hampshire, Rhode Island and Vermont.
    [Show full text]
  • Accessible Common Alerting Protocol Radio Data System Demonstration: Gulf Coast States Final Report August 2014 1 TABLE of CONTENTS
    Accessible Common Alerting Protocol Radio Data System Demonstration: Gulf Coast States Final Report August 2014 1 TABLE OF CONTENTS 1 TABLE OF CONTENTS ....................................................................................................................................................................... 2 2 ACKNOWLEDGEMENTS .................................................................................................................................................................... 5 3 EXECUTIVE SUMMARY ..................................................................................................................................................................... 6 4 INTRODUCTION .................................................................................................................................................................................. 8 5 METHODOLOGY.................................................................................................................................................................................. 9 6 TECHNICAL CONFIGURATIONS AND TESTING ..................................................................................................................... 10 6.1 Hardware, Ingest Software (INSO) and Software to Monitor INSO (WATCHINSO) ...................................................... 10 Hardware ................................................................................................................................................................................
    [Show full text]
  • Federal Register Volume 30 • Number 245
    FEDERAL REGISTER VOLUME 30 • NUMBER 245 Tuesday, December 21, 1965 • Washington, D.C. Pages 15697-15772 Agencies in this issue— Agricultural Stabilization and Conservation Service Atomic Energy Commission Civil Service Commission Commodity Credit Corporation Consumer and Marketing Service Federal Aviation Agency Federal Communications Commission Federal Maritime Commission Federal Reserve System Fish and Wildlife Service Food and Drug Administration ' Forest Service Housing and Urban Development Department Internal Revenue Service Interstate Commerce Commission Land Management Bureau Post Office Department Securities and Exchange Commission Treasury Department Detailed list of Contents appears inside. How To Find ILS. Statutes and U.S. Code Citations [Revised Edition— 1965] This pamphlet contains typical legal cluded. Examples are furnished at references which require further cit­ pertinent points and a list of refer­ ing. The official published volumes ences, with descriptions, is carried in which the citations may be found at the end. are shown alongside each ^refer­ This revised edition contains il­ ence—with suggestions as to the lustrations of principal finding aids logical sequence to follow in using and reflects the changes made in them. Additional finding aids, the new master table of statutes set some especially useful in citing cur­ out in the 1964 edition of the United rent legislation, also have been in- States Code. Price: 10 cents Compiled by Office of the Federal Register, National Archives and Records Service, General Services Administration [Published by the Committee on the Judiciary, House of Representatives] Order from Superintendent of Documents, U.S. Government Printing Office, Washington, D .G , 20402 rrnm/II Published dally, Tuesday through Saturday (no publication on Sundays, M M dgfc« rtllE 11/11 j|5|&ntulij I til on the day after an official Federal holiday), by the Office of the Federal Registe , Archives and Records Service, General Services Administration (mail address Area Code 202 Phone 963-3261— Archives Building, Washington, D.C.
    [Show full text]
  • Federal Communications Commission FCC 00-33 Before the Federal
    Federal Communications Commission FCC 00-33 Before the Federal Communications Commission Washington, D.C. 20554 In the Matter of ) ) Reorganization and Revision of ) WT Docket No. 94-148 Parts 1, 2, 21, and 94 of ) the Rules to Establish a New ) Part 101 Governing Terrestrial ) Microwave Fixed Radio Services ) ) Amendment of Part 21 of the ) CC Docket No. 93-2 Commission's Rules for the Domestic ) Public Fixed Radio Services ) ) McCaw Cellular Communications, Inc. ) RM-7861 Petition for Rule Making ) ) Amendment of Part 101 of the Commission's ) WT Docket No. 00-19 Rules to Streamline Processing of Microwave ) Applications in the Wireless Telecommunications) Services ) ) Telecommunications Industry Association ) RM-9418 Petition for Rulemaking ) MEMORANDUM OPINION AND ORDER AND NOTICE OF PROPOSED RULE MAKING Adopted: February 2, 2000 Released: February 14, 2000 Comment Date: [30 days after publication in the Federal Register] Reply Comment Date: [45 days after publication in the Federal Register] (Comments to be filed in WT Docket No. 00-19 and RM-9418 only.) By the Commission: TABLE OF CONTENTS Subject Paragraph I. INTRODUCTION AND EXECUTIVE SUMMARY………………………..…………………………...3 II. BACKGROUND………………………………………………………..………………………………..6 Federal Communications Commission FCC 00-33 Subject Paragraph III. MEMORANDUM OPINION AND ORDER A. Expanded Use of 10.7 - 11.7 GHz Frequencies ..............................................................13 B. Deletion of Thirty-Day Notice Period ............................................................................14
    [Show full text]
  • Popular March 1991 $2.95
    ICD 08635 MARCH 1991 $2.95 POPULAR S3.95 CANADA COMMUNICATIONS Build Our "Hot",,,,,_Breacl---jast Band Antenna How To Get GigVs We Test Shortwave -Receiver_ _ _ Software w w w ma. r y oow.w. ..re .+1.1/iP.Ee. ,w. _ :,-',....nia.é wíìteww,+w .. ... arr . -.__ .. /.irr'iIM NICOLE MM. NOTCH. 1999.900.00 g99 ewTemeT TB ie 1 O - sweT NOTCH J OOWN iOOCN up THE BEST OF BOTH WORLDS. The pacesetting IC -R9000 truly reflects operator -entered notes and function menus. ProfessioMl QaardyTlroa,lieut. The revolutionary ICOM's long-term commitment to excellence. Features a subdisplay area for printed modes IC -R9000 features IF Shift, IF Notch, a fully This single -cabinet receiver covers both local such as RTTY, SITOR and PACKET adjustable noise blanker, and more. The Direct area VHF/UHF and worldwide MF/HF (external T.U. required). Digital Synthesizer assures the widest dynamic bands. It's a natural first choice for elaborate Spectrum Scupe. Indicates all signal activities range, lowest noise and rapid scanning. Designed communications centers, professional service within a +/-25, 50 or 100KHz range of your for dependable long-term performance. Backed facilities and serious home setups alike. Test - tuned frequency. It's ideal for spotting by a full one-year warranty at any one of tune ICOM's IC -R9000 and experience a random signals that pass unnoticed with ICOM's four North American Service Centers! totally new dimension in top -of -the -line ordinary monitoring receivers. receiver performance! 1000 Multi -Function Memories. Store Complete Communications Receiver. Covers frequencies, modes, and tuning steps.
    [Show full text]
  • Introducing and Implementing a New Media Knowledge Management Plan for Public Radio Program Directors
    University of Pennsylvania ScholarlyCommons Master of Science in Organizational Dynamics Theses Organizational Dynamics Programs December 2008 Introducing and Implementing a New Media Knowledge Management Plan for Public Radio Program Directors Bruce M. Warren University of Pennsylvania, [email protected] Follow this and additional works at: https://repository.upenn.edu/od_theses_msod Warren, Bruce M., "Introducing and Implementing a New Media Knowledge Management Plan for Public Radio Program Directors" (2008). Master of Science in Organizational Dynamics Theses. 22. https://repository.upenn.edu/od_theses_msod/22 Submitted to the Program of Organizational Dynamics in the Graduate Division of the School of Arts and Sciences in Fulfillment of the Requirements for the Degree of Master of Science in Organizational Dynamics at the University of Pennsylvania Advisor: Larry Starr This paper is posted at ScholarlyCommons. https://repository.upenn.edu/od_theses_msod/22 For more information, please contact [email protected]. Introducing and Implementing a New Media Knowledge Management Plan for Public Radio Program Directors Abstract This purpose of this thesis is to introduce and make recommendations for implementing a new media knowledge management plan for Public Radio Program Directors (PRPD) a national organization that includes program directors at public radio stations across the country. I discuss knowledge management and relate it to my own experiences as a program director responsible for guiding the media organization I work for in a rapidly changing new media environment. I review the current new media landscape and examine the challenges program directors like I are facing if we are to better manage our organizations and make the best decisions for the future.
    [Show full text]
  • International Radio Regulations 5.53 Administrations Authorizing the Use of Frequencies Below 9 Khz Shall Ensure That No Harmful
    4 International Radio Regulations 5.53 Administrations authorizing the use of frequencies below 9 kHz shall ensure that no harmful interference is caused thereby to the services to which the bands above 9 kHz are allocated. 5.54 Administrations conducting scientific research using frequencies below 9 kHz are urged to advise other administrations that may be concerned in order that such research may be afforded all practicable protection from harmful interference. 5.55 Additional allocation: in Armenia, Azerbaijan, the Russian Federation, Georgia, Kyrgyzstan, Tajikistan and Turkmenistan, the band 14-17 kHz is also allocated to the radionavigation service on a primary basis. (WRC-07) 5.56 The stations of services to which the bands 14-19.95 kHz and 20.05-70 kHz and in Region 1 also the bands 72-84 kHz and 86-90 kHz are allocated may transmit standard frequency and time signals. Such stations shall be afforded protection from harmful interference. In Armenia, Azerbaijan, Belarus, Bulgaria, the Russian Federation, Georgia, Kazakhstan, Mongolia, Kyrgyzstan, Slovakia, Tajikistan and Turkmenistan, the frequencies 25 kHz and 50 kHz will be used for this purpose under the same conditions. (WRC-07) 5.57 The use of the bands 14-19.95 kHz, 20.05-70 kHz and 70-90 kHz (72-84 kHz and 86-90 kHz in Region 1) by the maritime mobile service is limited to coast radiotelegraph stations (A1A and F1B only). Exceptionally, the use of class J2B or J7B emissions is authorized subject to the necessary bandwidth not exceeding that normally used for class A1A or F1B emissions in the band concerned.
    [Show full text]