1、f* ; 3 Y . fl . r. . , , . - .i I i. c. I 3 I= : _ *- t . I -I /E%b!Y- . .J. - . . I - 1. -. 1 MIER-55656(EL) i $ -. -. . i5 February i969 * KI;LTARY SPECIFTCATION . -. RADIO Sm! AN/GRC-l03( ) (V) (BASIC) _* ._ .f . . *. 1. SCOPE 7 -. . - 1.1 Thie specification cover8 the requirement for the constru
2、ction . of a type radio relay. equipment for use in any of several bands in the !. * frequency range 76 to 1W MIE. .and 1350 to 1850 MHZ . . -.: ,* . - 1.2 Radio Set AI)(V) .con; of the -following I. ., . . ;. . . -5 . ,. . .i , y.-., . ;d,.:;-b:.-.,*b .I -,F. . components. . .I ) /CRC-l03(V) (3 ft
3、6 in), Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i f l I I I. 1 ! I I. I- MIL-R-55656 58 - 7797706 OLbbLO 5 m _- MIL-R-55656 (EL) - . _. ._ 1.2.2 Frequency band units. Frequ
4、ency band units are those components peculiar to one operating band as specified in the bid request and contract. 1.2.2.1 Band zero components (76-170 MHZ) i ea Amplifier - Converter M-6051( )/GRC-l03(V). 1 ea Amplifier = Frequency Multiplexer AM-6052( )/ i ea ntenirs s=2235( /GRc-o(v). GRC-l03(V) 1
5、.2.2.2 Band I components (220-405 MHZ) i ea Anipliier Converter =4316( )/cc-103(v). 1 ea Amplifier Frequency Multiplier AM-4320( )/ 1 ea Anted s-1852( )/GRC-lO3(V), includes 1 ea Reflector, Antenna AS-215O( )/GRC-l03(V) and 1 ea Antenna Element- l.l Functional. Tho equipments covered by this specifi
6、cation are units of a complete, compact, rugged, radio relay equipment whose major operating components may be used either as a terminal or modu- lation frequency patch repeater for intermediate or fontard area systems. transmission. ments in the 76 MHZ. to i850 MHZ. a repeater or as 8 terminal, it
7、i8 possible to tune and operate the receivers and transmitters on independent frequencies over the fre- quency range. ment with the plupin unas containing only those circuits which are The radio set is used to provide simultaneous two-way (duplex) The system provides radio-frequency (rf ) channel as
8、sign- . When used in combination, either as The basic radio set contains a niaXimm of common equip- peculiar to each frequency range. 3.1.2 Radio Set AN/GRC-lO3( )(V)(i) physical. The (V)l version It provides 370 operating channels in .provides for multichannel, line-of-sight, two-way cmication in t
9、he VHF .I UHF frequency range. the 220-404.5 MHZ range (Channels 40-409) primarily for use as a radio link ibn a communication network, which may include carrier telephone and teletypewriter sets. The radio sat is Used at each end of the line-of-sight path. used with 4 channel frequency Aivision mui
10、tiplex (fdm), or 6/12 or .24 channel puise code moduation (pcm) equipment. components comprise Radio Set AN/GRc-103( )(VI This version is intended . The radio set my be fi foowing mador . 3 J.2.1 Transmitter Radia T-983(P)( )/GRC-l03(V). The trans- mitter for Radio Set AN/GRC-lO3( )(V consist of a M
11、odulator- Power Supply Group and Cas, Transmiiie; CY-Q/GRC-O(V) . The case provides protection for the Modulator-Parer Supply Group end the Anplifier-Frequency Multiplier AM-432O/GHC-l03(V) . case are interconnections for the plug-in units and a built-in blower to provide cooling for the power ampli
12、fier tubes. parer supply group contains those modules common to eJ. bands of operation of the basic radio set. . Integral to the The modulator- - 3 .1.2.2 Amplifier-Frequency Wiiplier AM-4320( )/GX-l63(V) The amplifier-frequency.multiplier contains those modules unique to operation of the transmitte
13、r of the radio set in the range 220 to 404.5 MHZ. It provides the proper frequency multiplication factors end frequency selection necessary for operation In Band I, Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permi
14、tted without license from IHS-,-,-I I ! I I I I I i t i L t , 1 I I ! I ,i *. 3.1.2.3 Receiver, Radio R-1329(P)( )/GRC-lOQ(V). The receiver for Radio Set AN/GRC-l03(V) consists of a radio receiver group and case, Receiver -462( )/GRC-lO3(V) The case provides protection for the radio receiver groups
15、and Amplifier-Converter -4316( )/GRC- lO3(V) and contains integral wiring for interconnection of the two units. The radio receiver group contains those modules common to alJ. bands of operation ofthe basic radio set. 4. 3.1.2.4 Amplifier-Co/U to antenna. .-. - -b. -. Cable, rf, CG-3-LU (3-1/2) to CO
16、nnect dPlexer ! , .i , MIL-R-5565b 58 m 77777Ob OLbhL7 8 m i- l MIL-R-55 656 (EL) d. Cable, Special Purpose Electrical, Branched Cable, Electrical, aecial Purpose 0c-i0762/v (5 0c-i0763/ to interconnect order wire to receiver and transmitter. e. . 3.l.2.lA Connector UG-l375/U. To connect Cable, RF C
17、G-344b/U (301/2) to Cable, RF CG-3443/U . 3.2 Preproduction saples. The contractor shall furnish a lot of thirteen preproduction samples forappravd,. or as otherwise specified in the bid request and contract. The equipment shall be tested as follows: a. b. RCliabiliti testing, ten each. Complete con
18、forniance testing, 3 each. * 3.3 Procurement model. A procurement model of the equipment Win be available for inspection by prospective bidders and will, lent to the contractor. Unless otherwise specified herein or in the invitation for bids, the equipment shall conform to the . following: 3.3.1 Phy
19、sic 0.000080 inch thick). Such metallic coating or plating of conductors is permissible but not required. adequate size to provide sufficient ccnductivity so that the maximum We operating temperature of the base material will not be exceeded during nomal operations (reference Fig. 1 of MIL-STD-275)
20、. Con- ductor - line width shall be 0.015 inch minimum. C. One-part PC connector. Since the one-part printed circuit connecxor utilizes exposed conductor tabs and cannot be coated, it is not reconmended for general use in army equipment. Under special clrcumstanceB of assured low humidity (less than
21、 and where creepage distances of 0.080“ minimum and voltage diffemce of 5OV (DC or peak AC) msXimm can be maintained, one- connectors may be used provided the receptacle meets the requimnebts of MIL-C-2lOfl/l, “Connector, Electrical, Receptacle, Card Insertion, Printed Wiring, Contact Spacing (0.156
22、) printed wiring piing portion meets the requirements of s-i99T8i, %eqUirements for Printed Card Edge Connectors Mating with 4IL-C- (1) Solder or (2) Gold plated (O.ooOo50 to Conductor dimensions ahLl be of t ER) applications (.go, air conditioned fxed plant installatim) A and AD“, and the 2lOg/l Co
23、nnector Receptaclesgt . c. 3.5 Finish, protective. Equipment shall be ven protective Finish in accoxdsnce with MI.L-F-lkO72. phis includes finish of - -_ - . hardware type items, such 8s handles, hinges, screws, etc., and necessary touch-up after mounting, Unless otherwise specified, the - final pai
24、nt fiin on type I surface (see MIL-F-14072), exposed to view during operation, shall be a smooth,- serdgloss (olive drab) green, ia color conforming to No, X24087 of FED-STD-S%. When some other color or gloss is referred to in the equipment specification, but the details eu?e not specified,.the cont
25、ractor shall apply to the -. - 7 . .- Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-55656 58 7777706 0168619 I .i contracting officer for infomation reganling the required
26、 finish. For interference reduction purposes, interface surfaces of structures and bondi= connections between cases and mounting bases shall have a finish for electrical contact. The top corrt of paint on the front panel of the equipnent shall be semi-gloss gray enamel In accordance with MiL-E-l509O
27、. 3.6 -king. 3.61. General. Msrking shall conform to -MIL-M-13231. Front 3.6.2 Visibility. Wherever practiaie, parts shall be so panel marking shall be group I asidescribed I mounted that their identification marking will be readily visible with minimum disassembly of the equipment. in that specific
28、ation. 3.6.3 chassis marking. All chassis identification, parts identification, warning notes, etc., shall- be applied by the silk screen process or processes giving the same degree of legibility, placement accuracy- and permanence. The marking shau be . accordance with the model. Assemblies, subass
29、emblies and modules serially numbered in the moel shall have serial nunibers in addition to the major units speciiiedin 3.6.4. 3.6.4 Serial numbers. !The following items shall have serial nlrmbers and name plates. _. .c . -. Copyright Communications - Electronics Command Provided by IHS under licens
30、e with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-55656 58 W 9999706 OLbb20 B W * 3.6.4.1 Composition of serial. numbers. The serial nmbers used for this equipment shall be ten digits. The first five digits shall be the Federal Identification nuiber
31、of the prime manufacturer. The sixth digit shall.be 8 code letter to indiCste the production contract with said manufacturer. A for first production, B for second production etc, The final four digits shaJ.1 be progressively fram to 9999 as required. For sub- stantially continuous production on more
32、 than one contract consecutive numbering without change of letter designator may be used upon arFd last serial number of each unit, assembly, subassembly, and module furnished on the contract. to and approval by the Contracting Officer. .and Auaished the Government of the first -. 3.7 Tropicalizati-
33、S!CD-454. treatment (MFP). When overa trapicaizatim treatment of equipment is a contractual requirement, 8 moisture and fungus-resistant coating of varnish conforming to MIL-V-173 sbaU be applied in accordance with MiLe-152. The moisture, fungus-resistant coating shall be applied after the equipment
34、 has been cleaned to move such contaminants 88 corrosion products, dust, fingerprints, lubricating oils, mold release agents, sand, and solder fluxes. When tape is used on parts of equipment that are masked against treatments, the tape shall be an electrical grade. In the application of the MFP coat
35、ing, care shall be taken to assum that the costing does not affect circuit constants and thereby degrede perfonaance. 3.7.2 Overall treatment (misture and fungus proofing - - 3.8 Identification of wiring. Wiring shall be identified by Color-coding or, if approved by the contracting officer, may be i
36、dentified- by rical. clearance and creepage distances (in =im frequency patch repeater for primary use in the division area communications system. The radio shall provide simultaneous two way (duplex) transmission with the system perfomce 88 specified herein. 3.13.2 Frequency Gge. . The radio set s
37、operate in five bands as followst Band O: 76 - 170 MHz, Bmd I: 220 - 404.5 MHz, Bad II: 395 - 705 MEZ, Bd III: 695 -lo00 MHz, and Band IV: maxjmum of cotmnan equipment with the individual band units containing those circuits which are peculiar to that band. The ecpipxnent covered by this specificati
38、on shall conform to BanB I 1350 - i850 MKz. The basic radio set contains a requirements L n. 3.13.3 RF Channels and spacing. The system shall provlde channel assignments a each half and full megacycles points for Bands I, M and II (1/2 MHz spacing) and on each half megacycle point for Bands IV (1 MH
39、z spacing) . Band O channel assignments are on 1/8 MEIz points (1/8 MEz spacing) . c , 3.13.4 Rl? transmitter. 3.l3.4.1 Power Output. The IIonkl. transmitter power output without the rf duplexer (described In 3.13.37) shall be at least !lo watts in Band 0,- 30 watts in Band I, i5 watts in Bands II,
40、III and IV. * 3ei3.4.2 Power ,dissipation. The trandtter shall have provision for maintaining the hieh;level power tubes ,within their recommended plate dissipation ratings under canUtim of no excitation, or when the rf output terminals are open circuited or shorted . 3.13.4.3 Frequency stability, T
41、he transmitter when set to - -_- any channel in any band, after i5 minute warmup and at any ambient temperature betweer. -35 depes F and +i25 deghees F, shall not vary beyond plus or minus 0.002% of the nominal channel frequency for the next eight hours. The ambient may vary up to 54 degrees F withi
42、n the prescribed Urnits during the eight hour 3.13.4.4. Frequency setability. It shall be possible to align the transmitter to within ,0029 of the desired frequency by the use of 8n integral indicator, calibrated in. rf channel numbers Copyright Communications - Electronics Command Provided by IHS u
43、nder license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-L R - -. . . - .- MIL-R-55656 58 = 7777706 0168623 3 W 1 - MIGR-556% (EL) 3.13.4.5 S$rious outputs. When measured with duplexer, the power outpJt of any harmonic SU be at least 80 db below that o
44、f the fundamental and the power output of any non-harmonic extraneous emission of a band autside.,plus andiminus 15 MHs of the carrier shall be at least 80 db below that of the fundamental. over the fi.equoncy rango fo 2 1s MHe shall be suppressed at least 60 db, except for the range occupied by the
45、 modulation, where the spurious outputs shall not exceed the level of the modulation envelope. All spurious outputs 3.13.4.6 7 Alarm. A visual and audible alarm shall be provided in the transmitter. change in rf parer output that is greater than 8 db 2 2 db below the nominal power output rating of t
46、he transmitter. alarm is included such that: sound when the visual alarms are lighted as in the case of a failure; in the second switch position, the alarm sounds when the light is not lighted. signal. . A push to operate switch shall be employed. The vikal alarm shall; indicate A switch associated
47、with the audible In one switch position the alarm shall The audible alam thus indicates a change in state of the visual 3.1 3.4.7 Transmitter frequency response. The overall frequency .i.esponce of the transmitter when a modulation signal to produce 100 KC peak deviation is .applied to the video inp
48、ut shall conform to Table II. , at Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-55656 58 m 7777706 0168624 5 m . -. !WBm II I I I I , 1.0 .5 02 O O O .- 01 : * . i5 .? 1.
49、3 2 07 4.2 6 .o - 8.2 10 07 . 00.5 O O 4.1 62 O O . .s 10% . 2.4 . 3.9 I 5.0 n 8.0 9 *O -0- ,. 1.5 . 1.0 I .4 0.1 02 .3 .5 1.3 2.3 4 04 6.9 9.8 . 13 .o m-0 15 .O = 3.13.4.8 Ihm period. 3.13.6 IF bandwidth. The F selectivity shall have a nomina 3 db bandwidth of 750 -kc With the response down at least 60 db a% . 3.13.7 Receiver protection. Receiver pmtecti
