�-------------- * ----------� ( NAVSHIPS 91118 . ("···· INSTRUCTION BOOK for . ( RF WATTMETER .. ME-11/U .� ··r -�· -·· -�- i • I '"\' I ! i l • ( BIRD ELECTRONIC CORPORATION; . ..... � ·' CLEVELAND, OHIO (_ BUREAU OF SHIPS NAVY DEPARTMENT ( * Contact: NOBsr-39113 Approved by BuShips: NOBsr-42504 19 July 1948 NAVSHIPS 91118 FRONT MATTER ME-11/U '� LIST OF EFFECTIVE PAGES ! Page Change In Page Change In Numbers Effect Numbers Effect I ) I " Title Page Original 3-0 Original A to C Original 4-0 to 4-4 Original I to V Original 5-0 to 5-2 Original 1-0 to 1-3 Original 6-0 to 6-3 Original 2-0 to 2-5 Original � � --- ------- - ------------ -� ---- --- ) � :·l �-�·._. 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""'" t"t"' •� ').\.t a tO & • ' aO\. o� \.O� � t n. bo \.08 t e to 'l!'\lctio ub'l. t ( 'il).e.o. &t S!J:l?S � &t�l.o OB 1\ -J1 i,n. \\t.'I st !>\. O""""" a. to�- I> 8,_ .� 'l. •• 0ff �·�· ,.., •• "\.'l. ,.�,.·· O o ,.otl. /<'l.'l. O� t ce e t t1>'�'· � nan �. a\. � .,.o a y�\.1> • �a.�te bO �-··O�&.�o�e •nou'l.� arB ���').\. -..�<•• • • t\. u �" 00-..e 'fll<ll 1.1> l.c�.ao� ':, ?ub'l. 1l' t !,.� 1"··" � "n �� � ').,a.• tn.e s.n.O. s etin- ia· .._ �� e.O. b\l1.1. ?>'lll'e r ot c-nie C· 5• 0· 0!\ 2. \t-lG'1" 'llp..St-1 ,..' • <� '1"""£� t:t oE.P�' tot"'� st-1\f'S. of' t:tE.I'>u �..u ,.o... ( ORIGINAL B Correction Page NAVSHIPS 91118 FRONT MATTER ME-11 /U RECORD OF CORRECTIONS MADE �) CHANGE NO. DATE SIGNATURE OF OFFICER MAKING CORRECTION ,.1 < l;I /5B4/.� ! s-' l� r.� ..ln 7t3 - ----- % ) ') ) "'� c ORIGINAL FRONT MATTER NAVSHJPS 91118 Contents ME-11/U ( TABLE OF CONTENTS (. SECTION 1 -GENERAL DESCRIPTION SECTION 3 • INSTALLATION Paragraph Page Paragraph Page 1. Scope of Manual 1-1 1. Portability 3-0 2. Purpose of Equipment 1-1 2. Optional Fixed Mounting 3-0 3. Description 1-1 3. Location 3-0 4. Specific Uses 1-1 4. Remote Use of Meter Box 3-0 5. Major Components 1-1 5. Latch Mechanism 3-0 ( SECTION 2- THEORY OF OPERATION SECTION 4- OPERATION 1. Introduction 2-0 1. To Measure Transmitter Power 4-0 2. Basic Principles 2-0 2. To Measure Line Loss 4-1 3. Voltmeter Circuits 2-0 3. To Check Coaxial Insertion Devices 4-2 4. Load Resistor Circuit 2-2 4. Modulation Monitor 4-2 5. Voltmeter Housing Description 2-2 · 5. Audio Response Measurements 4-2 6. Crystal Diode Holders 2-3 6. Distortion 4-3 7. Crystal Voltage Level 2-3 7. Use as a Dummy Load Only 4-3 -{_ 8. Crystal Stability and Reliability 2-3 8. Use as a Low Frequency Wattmeter 4-3 9. Crystal Selection 2-3 9. General Operating Notes 4-3 10. Voltmeter-Frequency Characteristics 2-3 SECTION 5- MAINTENANCE 11. Power Calibration vs. Frequency 2-3 12. Overall Accuracy 2-4 1. Introduction 5-1 13. Calibration Methods 2-4 2. General Maintenance 5-1 14. Cooling System 2-4 3. Crystal Unit 5-1 15. Temperature Effects 2-5 4. Electrical Tests 5-2 16o Input Resistance-De -Significance Of 2-5 5. Checking Coolant Level 5-2 ( SECTION 6- PARTS LISTS (% , ( ORIGINAL I Illustrations and Tables NAVSHIPS 91118 FRONT MATTER ME-11/U ··� LIST OF ILLUSTRATIONS SECTION 1 ·GENERAL DESCRIPTION ;t'" Figure Page �) 1-1 Front View RF Wattmeter ME-11/U 1-0 1-2 RF Wattmeter ME-11/U, Meter Box Detached 1-3 SECTION 2 ·THEORY OF OPERATION 2-1 E2R Method of Power Measurement 2-0 2-2 Comparison Watt and Volt Scales 2-0 2-3 RF Wattmeter ME-11/U Simplified Schematic 2-0 2-4 Schematic Diagram RF Wattmeter ME-11/U 2-1 / 2-2 ) 2-5 VSWR vs. Frequency RF Wattmeter ME-11 U ' 2-6 Power Calibration vs. Frequency RF Wattmeter ME-11/U 2-4 SECTION 3 -INSTALLATION 3-1 Latch Operation 3-0 SECTION 4 ·OPERATION 4-1 Typical Connections to Transmitter 4-0 4-2 Line Loss Measurement -Block Diagram 4-1 4-3 Line Loss Measurement - Remote Use of DC Meter -Block Diagram 4-1 )J SECTION 5 ·MAINTENANCE 5-1 Crystal Unit, Rectifying, CAWY -40322 (Crystal Diode V-101, V -102) 5-1 5-2 Connector, Plug CAWY- 491859 (D-C Plug P-101) 5-2 5-3 Cable Service for Connector, Plug CAWY -491859 (D-C Plug P-101) 5-2 LIST OF TABLES tO:) SECTION 1 ·GENERAL DESCRIPTION Table Page 1-1 Equipment Supplied 1-2 SECTION 6 ·PARTS LISTS 6-1 Parts List by Symbol Designation 6-0 6-2 List of Manufacturers 6-3 �� II ORIGINAL FRONT MATTER NAVSHIPS 91118 Guarantee and Installation Record ME-11/U ( GUARANTEE The Contractor guarantees that at the time of delivery the Contractor's plant and return, shall be borne by the ( thereof the article provided for under this contract will Contractor; the Government shall bear all other ship­ be free from any defects in material or workmanship ping costs. This guarantee shall then continue as to and will conform to the requirements of this contract. corrected or replacing articles or, if only parts of such Notice of any such defect or non-conformance shall be articles are corrected or replaced, to such corrected given by the Government to the Contractor within one or replacing parts, until one year after the date of re­ year of the delivery of the defective or non-conforming delivery, unless a different period of guarantee is speci­ article, unless a different period of guaranty is speci­ fied in the schedule. If the Government does not require fied in the schedule. If required by the Governme nt correction or replacement of a defective or non-con­ within a reasonable time after such notice, the Con­ forming article, the Contractor, if requir�d by the Con­ tractor shall with all possible speed correct or replace tracting Officer within a reasonable time after the notice the defective or non-conforming article or part thereof. of defect or non-conformance, shall repay such portion When such correction or replacement requires trans­ of the contract price of the article as is equitable in the portation of the article or part thereof, shipping costs, circumstances. ( not exceeding usual charges, from the delivery point to INSTALLATION RECORD I Coutract Nos. NOBsr-39113 Date of Contract, 31 January 1947 NOBsr-42504 ____________________________ Serial Number of Equipment ____________________________________________ Date of Acceptance by the Navy ____________________________________ _______________________ __ _______ Date of Delivery to Contract Destination ____________________________________ ___ (, _ _________________ of Installation ______________________________________________________ Date Completion of __ _______ ( ( ORIGINAL Ill Miscellaneous Data NAVSHIPS 91118 FRONT MATTER ME-11/U ) REPORT OF FAILURE ' Report of failure of any part of this equipment, dur­ accordance with instructions pertaining thereto. ing its entire service life, shall be made to the Bureau The report shall cover all details of the failure and of Ships in accordance with current regulations using give the date of installation of the equipment, For form NAVSHIPS NBS 383 (revised) except for Marine procedure in reporting failures see Chapter 67 of Corps equipment, in which case the "Signal Equipment the Bureau of Ships Manual or superseding in­ Failure Report" form shall be used and distributed in structions. ORDERING PARTS ) ' All requests or requisitions for replacement mater­ following shall be specified: ial should include the following data: 1. Equipment model or type designation, circuit sym- 1. Federal stock number or, when ordering from a bol, and item number. Marine Corps or Signal Corps supply depot, the 2. Name of part and complete description. Signal Corps stock number. 3. Manufacturer's designation. 2. Name and short description of part. 4. Con tractor's drawing and part number. If the appropriate stock number is not available the 5. JAN or Navy type number. '''• ,) ·.·.� IV ORIGINAL FRONT MATTER NAVSHIPS 91118 Safety Notice and Resuscitation ME-11/U ( SAFETY NOTICE The attention of officers and operating personnel is ways remove power and discharge and ground circuits (�!' directed to Chapter 67 of the Bureau of Ships Manual prior to touching them. or superseding instructions on the subject of radio­ safety precautions to be observed. DON'T SERVICE OR ADJUST ALONE: This equipment is generally used with equipment em­ Under no circumstances should any person reach with­ ploying voltages which are dangerous and may be fatal in or enter the enclosure for the purpose of servicing or if contacted by operating personnel.