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1、TO 31R2-2GRT-102 NAVELEX 0967-LP-429-5010 TECHNICAL MANUAL SERVICE AND CIRCUIT DIAGRAMS RADIO TRANSMITTER T-1108(V)/GRT-21(V) Cavity Input matic Diagram.6-35Schematic Diagram.6-65 6-27Control RF/Modulator A6, Sche-6-45Synthesizer A8, Schematic matic Diagram.6-37Diagram .6-66 6-28Control RF/Modulator
2、 Feedback6-46Divider/Control A8A1, Schemat- Loop, Block Diagram.6-39ic Diagram .6-67 6-29Control, Thermal/Detector Mod-6-47RF Generator A8A2, Schematic ulation Percentage/CoaxialDiagram .6-69 Relay/Control Keyer Inhibit6-48Phase Comparator A8A3, Sche- A7, Schematic Diagram .6-40matic Diagram.6-71 6-
3、30Keyer, Control Transfer A2,6-49Switching Regulator A8A5, Schematic Diagram.6-41Schematic Diagram.6-73 6-31Audio Control Circuits, Sche-6-50Switching Regulator A8A5, matic Diagram.6-43Schematic Diagram.6-74 6-32Keyer KY-668/GRT A3, Sche-6-51Inboard Monitor/Keyer Card matic Diagram.6-44A3, Schematic
4、 Diagram . 6-74A 6-33Power Supply PS1A3, Regulator6-52AFCS Keyer Card A3, Sche- PS1A1 and PS1A2, Schematicmatic Diagram. 6-74C Diagram .6-456-53VHF/UHF Driver/Power Am- 6-34Power Amplifier, Schematicplifier A10 Wiring Diagram Diagram .6-47(8136838G1).6-74D 6-35Tuned Cavity VHF A7, Sche-6-54VHF/UHF D
5、river/Power Am- matic Diagram.6-49plifier A10A1, Schematic 6-36Tuned Cavity UHF A7, Sche-Diagram . 6-74E matic Diagram.6-516-54A.VHF/UHF Broadband Driv- 6-37Power Supply, (Controler/Power Amplifier 1/2 A10 Grid/Thermal Control/ACSchematic Diagram.6-74F Control A3, Schematic Diagram.6-536-54B.VHF/UHF
6、 Broadband DPA 6-38AC/Control Circuits, Schematic(Byistor Version) 1/2 A10 Diagram .6-54Schematic Diagram.6-74G 6-39Power Supply, Plate/Screen Grid6-55SSVS Schematic Diagram. 6-74H A4, Schematic Diagram .6-55 6-40Power Supply, Screen Grid A4, Schematic Diagram.6-57 Change 20v T.O. 31R2-2GRT-102 NAVE
7、LEX 0967-LP-429-5010 LIST OF TABLES NumberTitle PageNumberTitle Page 0-1GRR/GRT Radio Set Configura-5-8Fault Diagnosis, Normal Oper- tion Matrix.viiiating Mode.5-17 0-2VHF Transmitter5-9General Fault Indications and T-1108(V)/GRT-21(V) ConfigurationRecommended Action for Fur- Matrix .xther Fault Dia
8、gnosis.5-18 0-3UHF Transmitter5-10No Carrier - RGLTD +20 Posi- T-1109(V)/GRT-22(V) Configurationtion on Exciter Reads Zero.5-19 Matrix .xi5-11No Carrier - RGLTD +20 in Ex- 0-4Radio Frequency Amplifierciter Reads Normal.5-20 (VHF/UHF) Configuration Matrix.xii5-12Low RF Power-Modulation OK 1-1Leading
9、Particulars. 1-2or Not (50-Watt Configura- 1-2Capabilities and Limitations. 1-4tion) (Transmitter OK per Ta- 1-3Equipment Supplied. 1-6ble 5-6, 5-7, and 5-8).5-22 1-4Equipment Required but not5-13High RF Power-Modulation OK Supplied.1-7or Not (50-Watt Configura- 2-1Unpacking Data. 2-1tion) (Transmit
10、ter OK per Ta- 2-2Mating Plugs to Exciter and Pow-ble 5-6, 5-7, and 5-8).5-23 er Amplifier Rear Connectors.2-25-14Modulation Weak, Distorted or 3-1VHF/UHF Exciter Controls andNone, Carrier Power OK, Indicators.3-110-Watt or 50-Watt Mode 3-2VHF/UHF Power Amplifier Con-(Transmitter OK per Tables 5-6,
11、5-7, and trols and Indicators.3-75-8) .5-25 5-1Maintenance Test Equipment5-15Power Supply Fault Analysis and Special Tools .5-1Exciter.5-26 5-2Normal Test Position Readings5-16Analysis of Automatic Shutdown Exciter Only.5-8for Over Temperature Condi- 5-3Normal Test Position Readings,tions in Exciter
12、.5-27 Exciter and Power Amplifier,5-17Power Amplifier Fault Analysis . 5-29 50 Watt Mode of Operation.5-95-18Exciter Tuning Fault Diagnosis 5-4Typical Test Position Readings,Table and Recommended Ac- Exciter Only, 10 Watt Mode oftion for Further Fault Diagnosis .5-30 Operation.5-115-19Power Amplifie
13、r Tuning Fault 5-5Typical Test Position ReadingsDiagnosis and Recommended with Power Amplifier,Action for Further Fault Diagnosis.5-31 50-Watt Mode of Operation.5-125-20Performance Test of VHF and 5-6Transmitter Normal OperatingUHF Transmitter.5-37 Mode Conditions and Voltages6-1Exciter Wire List. 6
14、-75 10-Watt Mode (Exciter Only).5-156-2Power Amplifier Wire List . 6-82 5-7Transmitter Normal Operating Mode Conditions and Voltages 50-Watt Mode (Exciter and Power Amplifier).5-16 viChange 22 T.O. 31R2-2GRT-102 INTRODUCTION NOTEcontrols, indicators, and interlocks, and provides starting, operating,
15、 stopping, and emergency oper- The term RADIO SET refers to a ation procedures. Chapter 4 discusses the princi- combination of both the Transmitter ples of operation on a functional system basis and and the applicable Radio Frequency also to an operational or signal sequence flow. Amplifier. The act
16、ual Radio Set Chapter 5 includes maintenance and alignment nomenclature, part number and NSN procedures. Chapter 6 contains circuit diagrams. are for reference only and cannot be The alphabetical index following Chapter 6 pro- requisitioned. Not all locations vides references to the appropriate para
17、graphs require both Amplifier and Transmit- according to the subject covered. ter to accomplish their mission. The Radio Frequency Amplifier is needed Table 1-1 is included here in the introduction only when more than 10 watts is nec- as a cross-reference and indicates which modules essary. Should a
18、 set be required at are used in each configuration of the transmitter any location that location will have to and which amplifier is used with each transmitter. requisition both the Radio Frequency Changes to this manual will be indicated by a Amplifier and Transmitter sepa- vertical line in the mar
19、gin extending close to the rately. When a SET is used the entire area of the material affected and at the Transmitter and Amplifier will need binding edge of the page. Change symbols are not to be listed separately on their Table used for: Of Allowance (TA). See Table 1-1 for correct configurations.
20、 a.Introductory material, indexes, and tabular data where the change cannot be This manual contains information to install, identified. operate and maintain transmitter T-1108(V)/GRT- 21(V), or T-1109(V)/GRT-22(V) independent of or b.Blank space resulting from the deletion of in combination with RF
21、Amplifier AM-6154/GRT- text or an illustration or a table. 21 and AM-6155/GRT-22. c.Correction of minor inaccuracies, such as Both transmitters are identical in physical spelling, punctuation, relocation of mate- size as are either amplifier. Both transmitter and rial, etc., unless such correction c
22、hanges amplifiers are designed for mounting in a stan- the meaning of instructive information and dard 19-inch rack or cabinet and can be installed procedures. either independently or in combination. Reference is made to T.O. 00-25-234, General Radio Transmitter T-1108(V)/GRT-21(V) oper- Shop Practi
23、ce Requirements for the Repair, Main- ates in the amplitude modulation (AM) mode. It is tenance and Test of Electronic Equipment for capable of transmitting on any one of 680 channels instructions concerning procedures and specific spaced 50 KHz between 116.00 KHz and 149.95 materials to be used in
24、soldering this equipment. KHz (VHF). By exchanging certain of the fre- The following publications are listed for refer-quency determining modules with their corre- ence and govern the manner of preparation, use ofsponding UHF modules, the T-1109(V)/GRT-22(V) symbols, terms, reference designations, a
25、nd abbre-configuration is established which provides trans- viations in this manual.mission capabilities on any one of 3500 channels spaced 50 KHz between 225.00 and 399.95 MHz Military Specifications: (UHF). Information in this manual is presented in MIL-M-38730Manuals, Technical: six chapter and o
26、ne index. Chapter 1 contains a (USAF)General Requirement description of the equipment from a functional For Preparation Of standpoint including the capabilities and limita- tions. Information is provided covering leading MIL-T-9941 (USAF)Technical Manuals: particulars, equipment supplied, and auxili
27、ary Ground C-E Equip- equipment required but not supplied. Chapter 2 ment Facility Site and contains information for installation planning, System, Preparation logistics, installation procedures, and preparation Of for reshipment. Chapter 3 describes all operating Change 22vii T.O. 31R2-2GRT-102 Mil
28、itary Standards: Style Manual: Library of Congress Catalog No. Z253.U58 U.S. MIL-STD-12Abbreviations For UseGovernment Printing Office on Drawings and in Refer to T.O. 31R2-2GRT-512 Addition of Technical Type Publi- High Voltage Switch on AN/GRT-21/22 and T.O. cations 31R2-2GRT-514 Intermodulation D
29、istortion Modi- MIL-STD-15-1Graphical Symbolsfication on T-1108/GRT-21. For Electrical and Electronic Diagrams ASA Y32.16-1965Electrical and Elec- tronics Reference Des- ignations Change 22 viiA/(viiB blank) T.O. 31R2-2GRT-102 Table 0-1.GRR/GRT Radio Set Configuration Matrix viiiChange 22 T.O. 31R2-
30、2GRT-102 Table 0-1.GRR/GRT Radio Set Configuration Matrix (Cont) Change 22ix T.O. 31R2-2GRT-102 Table 0-2.VHF Transmitter T-1108(V)/GRT-21(V) Configuration Matrix xChange 22 T.O. 31R2-2GRT-102 Table 0-3.UHF Transmitter T-1109(V)/GRT-22(V) Configuration Matrix Change 22xi T.O. 31R2-2GRT-102 Table 0-4
31、.Radio Frequency Amplifier (VHF/UHF) Configuration Matrix xiiChange 22 T.O. 31R2-2GRT-102 Figure 1.Transmitting Set, Radio AN/GRT-21 and AN/GRT-22 NOTE Transmitter Nomenclature, Part number, NSN are for reference only and cannot be requisitioned. 1-0Change 22 T.O. 31R2-2GRT-102 CHAPTER 1 GENERAL INF
32、ORMATION amplifier. When only 10 watts is required, the exciter only is necessary. WARNING 1-4.Transmitting Set, Radio AN/GRT-22(V), hereinafter referred to as the UHF transmitting With the switch off and the fuse cap set, is comprised of Transmitter Radio T-1109(V)/ removed, 115 VAC (hot side) on t
33、he GRT-22, hereinafter referred to as the UHF exposed end of fuse holder (F1). When exciter, and Amplifier, Radio Frequency AM-6155/ removing or replacing any fuse, the GRT-22, hereinafter referred to as the UHF power AN/GRT-21/22 should be disconnected amplifier. When only 10 watts is required, the
34、 from the 115 VAC source. Failure to exciter only is necessary. comply with this WARNING could result in serious injury or death.1-5.An oscillator-synthesizer module is available which is directly interchangeable with and NOTE replaces the crystal oscillator module The term RADIO SET refers to a 1-6
35、.The VHF exciter, utilizing the oscillator-syn- combination of both the Transmitter thesizer is capable of transmission on any one of and the applicable Radio Frequency 2720 channels spaced 12.5 khz between 116.00 Amplifier. The actual Radio Set mhz and 149.9875 mhz. nomenclature, part number and NS
36、N are for reference only and cannot be1-7.The UHF exciter, utilizing the oscillator-syn- requisitioned. Not all locationsthesizer is capable of transmission on any one of require both Amplifier and Transmit-7000 channels spaced 25 khz between 225.00 and ter to accomplish their mission. The399.975 mh
37、z. Radio Frequency Amplifier is needed 1-8.Frequency selection utilizing the oscillator only when more than 10 watts is nec- synthesizer module is obtained by direct dialing essary. Should a set be required at the required input frequency to the doubler or any location that location will have to qua
38、drupler module. request both the Radio Frequency Amplifier and Transmitter sepa- 1-9.An oscillator-multiplier module is available rately. When a SET is used the which is directly interchangeable with the crystal- Transmitter and Amplifier will need oscillator module or the oscillator-synthesizer mod
39、- to be listed separately on the Table Of ule. This oscillator-multiplier module differs from Allowance (TA). See Table 1-1 for the crystal oscillator series in that it utilizes a fun- correct configurations. damental crystal rather than a fifth overtone type and the crystal oven is eliminated. Freq
40、uency 1-1.INTRODUCTION.This chapter contains accuracy is determined by pulling the crystal. information concerning Transmitting Set, Radio Tuning is accomplished to the exact frequency by AN/GRT-21 (V) and Transmitting Set, Radio AN/ monitoring the frequency with a counter. GRT-22(V). A description
41、of the equipment, its 1-10.Common to both the VHF exciter and the purpose and strategic mission, capabilities and UHF exciter is Keyer, KY-668/GRT, hereinafter limitations, leading particulars, and operation are referred to as the special purpose keyer. discussed in the following paragraphs. 1-11.Th
42、e VHF transmitting set and the UHF 1-2.DESCRIPTION AND PURPOSE. transmitting set are designed for worldwide deployment in the air-traffic control service and 1-3.Transmitting Set, Radio AN/GRT-21(V), provide ground-to-air and point-to-point voice com- hereinafter referred to as the VHF transmitting munication. See figure 1-1. set, is comprised of Transmitter, Radio T-1108(V)/ GRT-21, hereinafter referred to as th
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