1、MIL-T-81785C 43 H 333930b 025b723 T m/ MIL-T-81785C (AS) 11 July 1977 Superseding 6 December 1974 MIL-T- 81785B (AS) MILITARY SPECIFICATION TEST STATION, RADIO FREQUENCY OJ- 2 13 ( ) /A”- 2 3 (V) This specification has been approved by the Naval Air Systems Command, Department of the Navy 1. SCOPE 1
2、.1 Scope. This specification covers the performance, design, and test requirements for the Radio Frequency Test Station (RFTS) 05-213( )/AWM-23(V) (see 6. i) 1.2 Classification. The RFTS consists of a 4-bay station and accessories as follows (see 6.4) : a. Bay No. 1: Console, Test, Radio Frequency (
3、RF), Transmitter OJ-247( )/AWM-23(V) Nomenclature Reference Paragraph Panel, Test, Noise Measurement RF Power Meter RF Voltmeter . Panel, Coolant Disconnect Mounting MT-4498( )/AiVM-23(V) (see 6.9) Drawer, Coolant Drain (see 6.9) Panel, Slave Access Power Supply PP-6770( )/AiVG-9 Power Supply PP-677
4、1( )/AiVG-9 Power Supply PP-6772( )/AWG-9 ID-1860 ( )/AWM-23(V) MX-9305( )/AWM-23(V) 3.6.1.1 3.6.1.2 3.6.1.3 3.6.1.4 3.6.1.5 . 3.6.1.6 3.6.1.7 3.6.1.7.1 3.6.1.7.2 3.6.1.7.3 Benefic ia1 comments (recommendations, addit ions, -del et ions) and any pert i- nent data which may.be of use in improving thi
5、s document should.be addressed to : Engineering Specifications and Standards Department (Code 93) Naval Air Engineering Center, Lakehurst, NJ 08733, by using self-addressed Standardi- zation Document Improvement Proposal (DD Eorm 1426) appearing at the end of this document or by letter. Provided by
6、IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - MIL-T-L785C 47 W 777770b 0256730 b MIL-T-81785C (AS) b. Bay No. 2: Console, Test, Radio Frequency, Receiver 05-248( )/ AWM- 2 3 (V) (1) Microwave Swept Oscillator (2) Noise Figure Meter (3) Spectrum Analyzer (4)
7、 Switching Unit, Fault Isolation (5) Test Set, Radio Frequency Power (6) Oscillator, Radio Frequency SA- 189 3 ( ) /Aim- 2 3 (V) TS- 3276 ( ) /Aim- 23 (V) O-1633( )/AWG-9 3.6.2.1 3.6.2.2 3.6.2.3 3.6.2.4 3.6.2.5 3.6.2.5.1 c. Bay No. 3: Console, Test, Radio Frequency, Receiver-Transmitter OJ- 249 ( )
8、/Aim- 2 3 (V) (i) Oscilloscope 3.6.3.1 (2) Panel, Test, Electrical 3.6.3.2 (3) Panel, Access 3.6.3.3 (4) Comparator, Signal 3.6.3.4 (5) Dummy Load, Electrical 3.6.3.5 (6) Transducer TR-283( )/AWM-23(V) 3.6.3.6 C-9 177 ( ) /Alm- 23 (V) CM-434 ( ) /AWM-2 3 (V) DA-6 30 ( ) /AiVM- 2 3 (V) d. Bay No. 4:
9、Console, Test, Radio. Frequency 05-250( )/AWM-23(V) Panel, Power Distribution Signal Generator, RF Counter/Timer Frequency Counter Digital Multimeter Frequency Response-Analyzer Range Simulator Generator, Reference Signal Power Supply PP-6848( )/AWM-23(V) Power Supply, DC SB-3694( )/AWM-23(V) SG- 10
10、 14 ( ) /AWM-23 (V) 3.6.4.1 3.6.4.2 3.6.4.3 3.6.4.4 3.6.4.5 3.6.4.6 3.6.4.7 3.6.4.8 3.6.4.9 3.6.4.10 e. Accessories - RFTS 3.6.5 Plug-in Modules Adapters, Mounting Mounting Adapter-Modulator Mounting Adapter-XMO and Receiver Mounting Adapter-Power Supply Waveguides, Interface Extender Kit -RFTS Comm
11、ercial Items, Auxiliary Fixture, Pressure Leakage-Test 3.6.2.3 3.6.5.1 3.6.5.1.1 3.6.5.1.2 3.6.5.1.3 3.6.5.2 3.6.5.3 3.6.5.4 - -2- . -. . . . . . -. -. The fault . isolation switching unit shall provide capability to perform the fault isolation signai switching during fault isolation tests of the WR
12、As and during test station fault isolation. 3.6.2.5 Test Set, Radio Frequency Power TS-3276( )/AwM-Z3(V). The radio frequency power test set shall provide microwave switching, attenuation, termination and interconnection capabilities to connect the Oscillator, Radio Frequency O-1633( )/AWG-9, Transm
13、itter, Radar T-1224( )/AWG-9, and Receiver, Radar R-1785( )/AWG-9 WRAs to the RFTS for test purposes. shall contain a crystal mixer or use in FMR linearity measurements and another crystal mixer for modulation analysis This drawer 3.6.2.5.1 Oscillator, Radar Frequency O-1633( )/AWG-9. A radar freque
14、ncy oscillator shall be supplied and shal1,provide-a precision RF source for the RFTS and WRAs under test. 3.6.3 Console, Test, Radio Frequency, Receiver-Transmitter 05-249( )/ AWG23(V). ing The equipment of this console shall be as specified in the follow- 3.6.3.1 Oscilloscope. An oscilloscope; Hew
15、lett-Packard 181 AR with plug-in amplifier 1801A-003 andplug4n time base and delay generator 1821A, or equi- valent, shall be suppli.ed and shall provide display of waveforms. . -18- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-BI785C 49 777
16、7906 0256747 I 3.6.3.2 Panel, Test, Electrical C-9177( )/Aiv-23(V). The electrical test panel shall provide the controls, displays and switching capability to conduct functional and fault isolation tests on the WRAs assigned to the RFTS. Controls on the front panel shall be provided to command WRA P
17、ower On or Power Off, command emergency off for station power, select and .enable function- al or fault isolation tests, select and apply input signals to WRAs, select measurement instruments during test, command SSI Word Generator to provide desired word, control setting of attenuators, and control
18、 level of simulated IVRA inputs. Displays on the front panel shall be provided to display test number, test mode and status, and SSI BIT fault. 3.6.3.3 Panel, access. The access panel shall provide .cover for bay structure mounted electrical wiring. 3.6.3.4 Comparator, Signal CM-434( )/AWM-23(V). Th
19、e signal comparator shall provide: a. The capability to determine modulation frequencies and modulation indices associated with the AIM-7E and AIM-7F Missiles. Timing and gating functions necessary for operation and test of the receiver-transmitter group WRAs. The capability to measure the slope and
20、 linearity of the FMR ramp modulated X-band output of the Oscillator, Radio Fre- quency O-1633( )/AWG-9 under test. b. c. 3.6.3.5 Dummy Load, Electrical DA-630( )/AWM-23(V). The dummy load shall provide the capability to test the high power outputs of the transmitter power supplies by means of opera
21、ting into a liquid cooled load assembly. sistive load elements and associated high voltage switching relays shall be enclosed within the liquid filled assembly. Re- 3.6.3.6 Transducer, TR-283( )/AWM-23(V). The transducer shall provide the capability to provide fault and monitoring signals for detect
22、ion of inadequate cooling by means of coolant flow transducers. 3.6.4 Console, -Test, Radio Frequency 05-250( )/AWM-23(V). The equipment of this console shall be as specified below. . 3.6.4.1 Panel, Power Distribution SB-3694( )/AWM-23(V). The power dis- tribution panel shall provide the capability
23、to: . a. Control RFTS power function. b. c. d. Display RFTS malfunction indication. Indicate that input power forms are applied to the test station. Provide overload protection for the RFTS. 3.6.4.2 Signal generator. The signal generator, RF Communications Incor- porated RF-808-863-008, or equivalen
24、t, shall provide IF signals. - 19- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T- 81785C (AS) 3.6.4.3 Counterltimer. A counter/timer, Hewlett-Packard 5326B/001/011, or equivalent, shall be supplied and shall provide capability to perform the
25、Synchronizer-Transmitter SN-487( )/AWG-9 and Converter, Signal Data CV- 2946( )/AWG-9, CV-3224( )/AWG-9 and CV-3366( )/AWG-9 time interval measure- ments. 3.6.4.4 Frequency counter. A frequency counter, Systron-Donner 6316A-29, or equivalent, shall be supplied and shall provide capability to perform
26、 frequency measurements (primarily X-band frequencies). 3.6.4.5 Digital multimeter. A digital multimeter, Systroi-Donner 9340-5BY or equivalent, shall be supplied and shall provide capability to perform ac and dc voltage measurements, and resistance measurements. 3.6.4.6 Frequency response analyzer.
27、 A frequency response analyzer, EMR Hatboro 1410 AR-1, or equivalent, shall be supplied and shall provide capability to perform the Converter, Signal Data CV-2946( )/AWG-9, CV-3224( )/ AWG-9, CV-2950( )/AWG-9, CV-3225( )/AWG-9 and CV-3366( )/AWG-9 polar error phase shift measurements. 3.6.4.7 Range
28、simulator. The range simulator, Instrumentation Technology Corporation 9007, or equivalent, shall be supplied and shall provide cap- ability to perform the Converter, Signal Data CV-2946( )/AWG-9, CV-3224( )/ AWG-9 and CV-3366 ( )/AWG-9 dynamic tracking tests. 3.6.4.8 Generator, Reference Signal SG-
29、1014( )/AWM-23(V). The reference signal generator shall provide the following capabilities: a. Comparison of signals from the speed tracker portion of the Converter, Signal Data CV-2950( )/AWG-9 and CV-3225( )/ AWG-9 to provide a GO/NO GO output. Processing pulse and frequency modulated signals at t
30、he radar IF center frequency and inversion of the frequency domain spectrum along the frequency axis, shall be used to test Synchronizer-Transmitter SN-487( )/AWG-9. In addition, a pulse delay capability shall be included. b. The IF spectrum inverter 3.6.4.9 Power Supply PP-6848( )/AwM-23(V). The po
31、wer supply shall provide the capability to supply dc voltages to WRAs and RFTS circuits, using a single dc power supply as a.source (3.6.4.10). the capability to sense the output power forms for overvoltage, undervoltage, and overcurrent for RFTS and WRA protection as well as for continuous monitor
32、cap ab i 1 it y. The power supply shall also provide 3.6.4.10 Power supply, dc. The dc power supply, Lambda LB706-FM-3632, or equivalent, shall provide the capability to supply 200 Vdc at 10 amperes to Power Supply PP-6848( )/AWM-23(V). 3.6.5 Accessories - RFTS. not permanently attached to the RFTS-
33、. The RFTS accessories shall be composed of items -20- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-L785C i.17 7999706 02567Lt7 5 W MIL-T- 81785C (AS) 3.6.5.1 Mounting adapters. The mounting adapters shall provide WRA mounting, liquid coolan
34、t connections, air cooling connections, and connection to the RFTS interface at the mounting surface. 3.6.5.1.1 Mounting adapter - modulator. The modulator mounting adapter shall serve as a holding fixture which mates with the mounting (3.6.1.5) and shall provide air cooling for the modulator assemb
35、ly of Transmitter, Radar T-1224( )/ AWG-9. 3.6.5.1.2 Mounting adapter- FMI and receiver. The VO and receiver mounting adapter shall serve as a holding fixture which mates with the mounting (3.6.1.5) and shall provide liquid coolant connections for Oscillator, Radio Frequency O-1633( )/AWG-9 and Rece
36、iver, Radar R-1785( )/AWG-9. .3.6.5.1.3 Mounting adapter - power supply. The power supply mounting adapter shall serve as a holding fixture which mates with the mounting (3.6.1.5) and shall provide liquid coolant connections for Power Supplies PP-6770 ( )/ AWG-9 and PP-6771( )/AWG-9. 3.6.5.2 Interfa
37、ce waveguides. The interface waveguide/coaxial cable shall be used to provide connections between the RFTS and the following WRAs during tests. a. b. Transmitter, Radar T-1224( )/AWG-9. c. Receiver, Radar R-1785( )/AWG-9. Oscillator, Radio Frequency O-1633( )/AWG-9. 3.6.5.3 Extenders - RFTS. The RFT
38、S shall include extender cards and cables to extend modules from their respective WRAs or GSE assemblies. 3.6.5.4 Commercial items, auxiliary. Auxiliary commercial items shall provide supplementary test capability to the commercial test equipment of the RFTS. 3.6.6 Elapsed time meter. An elapsed tim
39、e meter, conforming to MIL-M-7793, shall be.provided. the RFTS and shall be capable of registering at least 9,999 hours. The meter shall be readily visible during operation of 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Applicable. 4.2 General. Applicable. 4.2.1 Classification
40、. Applicable. 4.22 Individual items. Applicable. 4.2.3 In-process inspection. Applicable. 4.2.4 In-process data. Applicable. -21- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. VIL-T-L785C 49 M 7999906 0256750 L MIL-T-81785C (AS) . 4.2.5 Acceptanc
41、e test plan. Applicable. Table V shall apply. 4.2.6 Test results, Applicable. 4.2.7 Acceptance. Applicable. 4.2.8 Utilities. Applicable. 4.2.9 Configuration. Applicable. 4.3 Tests. TABLE V ACCEPTANCE TEST PLAN FOR RADIO FREQUENCY TEST STATION O J - 2 13 ( ) /AWM- 2 3 (V) 1.0 TEST OBJECTIVE. To demon
42、strate self-test and operational run-in test5 of the Radio Frequency Test Station. 2.0 TEST CONDITIONS a. AWG-9 Slave Units (1) 481001-1XX (3) 481014-1XX (4) 481015-1XX . (2). 481013-1XX b. Utilities Re.quired (Information only, ref. 4.2.8) (1) (2) (3) (4) Power as specified by 3.2.2.1 Liquid coolin
43、g as specified by 3.2.2.4 Clean air cooling as specified by 3.2.2.2 Nitrogen as specified by 3.2.2.6 3.0 TESTS. In accordance with Acceptance Test Procedure 3282204. a. Perform self-test. b. Perform operational run-in-tests. 4.3.1 Electrical and electronic items - operational run-in test. Applical 4
44、.3.2 Mechanical items. Applicable. 4.4 Environmental test conditions. Applicable. -22- - .A. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-IIL-T-L7SC Li7 W 7779706 0256751 3 W 4.5 Test location. Applicable. 4.6 Acceptance schedule. Applicable. 4.7
45、Test procedures. Applicable. 4.8 Rejection and retest. Applicable. 5. PREPARATION FOR DELIVERY 5.1 General. Applicable. 6. NOTES 6.1 Intended use. The RFTS is-intended for intermediate level use to functionally test, fault isolate, and verify the serviceability of certain weapon replaceable assembli
46、es (WRA) of the radar subsystem of the Weapon Control System (WCS) AN/AWG;9. . 6.2 Ordering data. Applicable. 6.3 Definitions. Applicable. 6.4 Nomenclature cross- reference. The .wing is a cross reference bcieen the official Navy nomenclature and the major contractor part numbers. tractor part numbe
47、r suffix is controlled by the configuration list in the contract. The con- Official Nonenclature Contractor Part No. a. b. C. d. e. f. g. h. i. j. k. Oscillator, Radio Frequency Synchroni Zer-Transmi tter Transmitter, Radar Power Supply Power Supply Power Supply Receiver, Radar Converter, Signal Dat
48、a CV-2950 ( ) /AWG-9 and Converter, Signal Data and CV- 3366 ( ) /AWG-9 Test Station, Radio Frequency Console, Test, Radio Frequency Transmit ter O J - 24 7 ) /Aim- 2 3 (V) O-1633( )/AWG-9 SN-487( )/AWG-9 T- 1224 ( ) /AWG-9 PP-6770( )/AWG-9 PP-6 771 ( ) /AWG-9 PP-6 772 ( ) /AWG-9 R- 1785 ( ) /AWG-9
49、CV-3255 ( ) /AWG-9 CV-2946( )/AWG-i, CV-3224( )/AWG-9 OJ- 213 ( ) /AwM-23 (Y) 481001-1XX 4810 10- 1XX 4 8 10 11- 1XX 481013-1XX 4810 14- 1XX 48 10 15- 1XX 4 8 102 2- 1XX 48 10 39 - 1XX 48 108 3-1XX 493150- 1XX 493151-1XX Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I. Console, Test, Radio Frequency 49315 2- 1XX m. Console, Test, Radio Frequency 49 3 15 3- 1XX n. Console
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