1、. jtn!L4-7334R( EC) 30 November 1978 MILITKR-Y SPECFTCATI-OB- _ RADIO SET AN/URC-94(V) This specification is approved for use by tie Navil Electronic Systems Comnand, Department of 1. SCOPE 1.1 Scope. the Navy, and is available for use by all Departments and Agencies of the Department of Defense. Th
2、is specification covers the design and performance of the radio set AN/ URC-94(V), a multimode high frequency (HF) and low band very high frequency (VHF) cormunication transceiver operating in the 1.5 to 29.9999 megahertz (MHz) frequency band in the amplitude md- ulation (AM) mode and in the 30.0 to
3、 79.9999 MHz frequency band in the frequency modulation (FY) mode. The AN/URC-94(V) is a militarized version of a comnercial equipment, the radio frequency (RF) communications mdel RF-280. 1.2 This specification covers two variations of the AN/URC-94(V), as follows: Nomenclature AN/URC-94 (V) - 1 AN
4、/URC-94 (V) -2 Description Shock mounted transceiver Rack mounted transceiver 2. APPLICABLE DOCUMENTS 2.1 Issues of documents. The following documents of the issue in effect on dat? of invita- tion for bids or request for proposal form a part of this specification to the extent specified herein. SPE
5、C IF I CATIONS MIL I TARY NIL -s-90 1 MIL -E- 16400 MIL-E-17555 MIL -H-55258 MIL-A-55238 STANDARDS MILITARY VIL-STO-105 MIL -STO-lDE Shock Test, H.I. (High Impact), Shipboard Machinery Equipment And Systems, Requirements For Electronic, Interior Comnunication And Naviga- tion Equipment, Naval Ship A
6、nd Shore, General Specification For Electronic and Electrical Equipment, Accessories, And Repair Parts, Packaging And Packing Of Handset H-189( )/GR Antenna AS-l729/VRC Sampling Procedures And Tables For Inspection BY Attributes Definition Of And Basic Requirement For Enclosure For Electric And Elec
7、tronic Equipment Beneficial comnents ( comnenda ions, additions, deletions) and any pertineqt data which may he of use in improving this document should be addressed to: Comnaiider, Naval Electronic Systems Comnand (ELEX-5043), Washington, DC 20360, by using the self-addressed Standardization Docume
8、nt Improvement Proposal (30 Form 1426) appear- ing at the end of this document, or by letter. - .-A ._ - -. FSC 5823 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-28848( EC) MIL-STD-109 MIL - STD- 167 - 1 MIL-STD- 188 MIL-STD-454 MIL-STD-461
9、MIL-STO-462 MIL-STO-471 MIL-STD-781 MIL -STD-810 HANDBOOKS MILITARY MIL -HDBK-241 Quality Assurance Terms And Definitions Mechanical Vibrations Of Shipboard Equipment (Type 1 - Environmental And Type li-Internally Excited) Military Communication System Technical Standards Standard General Requiremen
10、ts For Electronic Equipment Electromagnetic Interference Characteristics Requirements For Equipment Electromagnetic Interference Characteristics, Measurement Of Maintainability Demonstration Reliability Design Qualification And Production Acceptance Tests: Exponential Distribution Environmental Test
11、 Methods Design Guide For Eh11 Reduction In Power Supplies PUBLICATIONS National Security Agency CSESD-14 TSEC KY-58 CSESD-32 TSEC KY-58 CSESD-15 TSEC KY-75 (Copies of specifications, standards, handbooks, drawings, and publications required by con- tractors in connection with specific procurement f
12、unctions should be obtained from the procuring activity or as directed by the contracting officer.) 3. REQUIREMENTS 3.1 General. The AN/URC-94;?) shall be in accordance wit4 the provisions 3f MIL-E-16400, to the ext-ci f i ed here in. 3.1.1 First article. When specified (see 6.2), the contractor sha
13、ll furnish sample unit(s) for first article inspecfion and approval (see 4.3 and 6.3). 3.2 Description. The AN/URC-94(V) shall be a modular solid state radio set providing simplex two -way comnunicat ions, compatib le with comnun icat ions secur it y (COMSEC) equipments, aboard boats and craft and f
14、ixed shore installations. The AN/URC-94(V) shall be capable of operation in the AM, single sideband (SSB) witi selectable upper sideband (USB) and lower sideband (LSB), and continuous wave (CW) modes of emission in the 1.5 through 29.9999 MHz frequency range and in the FM mode of emission in the 30.
15、0 through 79.9999 MHz. HF and VHF antenna couplers and antennas, a control/interface unit, an amplifier-control to enable remote operation of the AN/URC-94(V) (except for frequency selection and tuning), a handset, and a mount. The HF antenna coupler shall operate in the 1.5 to 29.9999 YHz frequency
16、 range and the VHF coupler in the 30.0 to 79.9999 MHz frequency with the coupler automatically selected and tuned depending upon the frequency of operation. The control/interface unit shall automatically select the appropriate COMSEC equipment depending upon the mode of operation. The AN/URC-94(V) s
17、hall operate from sources of power 115/230 volts alternating clirrent (AC) and 26.4 volts direct current (DC) . The AN/URC-94(V) shal I consist of a receiver-transmitter, 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-28848 58 7777706 044565
18、6 L MIL-R-28848( EC) 3.3 Equipment composition. The radio sets shall be complete, ready for installation and operation with the exception of interconnecting cables. basic items specified in 3.3.1 and 3.3.2. and craft ana shall consist of the following: The radio sets shall be composed of the 3.3.1 A
19、N/URC-94(V)-l. The AN/URC-94(V)-l radio set is intended for application aboard boats a. b. C. d. e. f. . 9. h. One each receiver /transmitter , Radio RT-1230 ( V) - 1 /URC-94 (V) including : 1. 2. One each modulator/demodulator, MD-1014/URC-94(V) One each base, shock-mount, electrical equipment, MT-
20、4883/URC-94(V) One each coupler, antenna, HF CU-2184/URC-94(V) One each antenna, VHF, AS-l729/VRC One each antenna, 4.87 meters (m) (16 feet), fiberglass with feed through base One each amplifier-control, C-10206/URC-94(V) One each handset, H-l89/GR One each control/interf ace 5-364 1 /URC-94 ( V) O
21、ne each inverter, power, 26.4 VDC, CV-3419/URC-94(V) 3.3.2 AN/URC-94(V)-2. The AN/URC-94(V)-2 radio set is intended for fixed shore installa- tion and shall consist of the following: a. One each receiver/transmi tter, rad io RT-1230( V) -2/URC-94 (V) including : 1. One each inverter, power 26.4 VDC,
22、 CV-3419/URC-94(V) 2. One each modulator/demodulator, MD-1014/URC-94(V) One each coupler, antenna, HF, CU-2184/URC-94(V) One each antenna, 4.87 m (16 feet), fiber lass with feed through-base b. c. One each antenna, VHF, AS-l729/VRC d. e. One each amplifier-control C-10206/URC-94?V) f. One each hands
23、et, H-l89/GR g. One each control/interface J-3641/URC-94(V) 3.4 COMSEC compatibilit . The AN/URC-94(V) shall be compatible with communications security equipments in accordance wi thCSESD-14, CSESD-32, and CSESD-15. 3.4.1 Reliabilit . The AN/URC-94(V) shall have an upper test limit !nean-time-betwee
24、n fail- The lower test limit MTBF (O, as defined in MIL-STD-781) shall be 500 hours. ure (MTBF) ($d in MIL-STD-781) of either radio set configuration specified in 3.3 of 1000 hours. 3.4.1.1 Equipment conditioning. Each production radio set shall be subjected to a 72-hour environmental burn-in as spe
25、cified in 4.9.2. 3.4.2 Maintainabilitz. 3.4.2.1 Qualitative maintainability requirements. The AN/URC-94(V) shall provide ease of maintenance, accessibility, and replacement of all modules and parts. 3.4.2.2 uantitative corrective maintenance. The AN/URC-94(V), including built-in-test (BIT), shall ha
26、ve a ian-corrective-maintenance time Met) not exceeding 0.5 hour and a maximum-corrective- maintenance time (Mmaxct) (95th percentile) not exceeding 1 .O hour when corrective maintenance is accomplished at the organizational level of maintenance by the replacement of lowest subassemblies (modules, p
27、rinted circuit (PC) boards) and chassis-mounted parts (electronic, electrical, electro- mechanical, and mechanical parts). The corrective maintenance time includes localization, isola- tion, disassembly, interchange, reassembly, alignment, and checkout for all corrective maintenance actions. BIT cir
28、cuits are included in the corrective maintenance time requirement. The equipment is considered to be in a corrective maintenance mode whenever a failure or malfunction occurs, in- cluding a malfunction that allows degraded operation. 3 Provided by IHSNot for ResaleNo reproduction or networking permi
29、tted without license from IHS-,-,-MIL-R-28B8 58 = 7779906 OLiLi5b.57 3 MIL-R-28848( EC) 3.4.3 Parts, materials, and processes. Parts, materials, and processes shall be selected using MIL-E-rn as a guide to the maximum extent practicable. 3.4.3.1 Procedure for selection of electronic and electrical p
30、arts and material durin desi n. Selection and prescreening of electronic and electrical parts and materials shall %e in _% accor ance with MIL-STO-965, Procedure I. 3.4.4 Safety. The safety requirements shall be in accordance with Requirement 1 of MIL-STD-454. 3.4.4.1 mi i I i aqperes Le;Fage curren
31、t. The leakage current of the equipment shall not exceed five 3.4.5 Electromagnetic compatibility (EMC). conform to the requirements of MIL-STO-4bl f or Class IA and IB equipments, with the following exceptions : The equipment shall be self-compatible and shall a. CEO1: Broadband shall be exempted.
32、b. c. d. RS03: Shall be performed at 10 volts per meter. CS06: RE02: frequency Shall be performed at 400 volts, five microseconds (9s) Limit may be relaxed by 20 decibels (dB) at the transmitter fundamental MIL-HOBK-241 may be used for guidance in electromagnetic interference (EMI) design of power s
33、upplies. 3.5 Receiver/transmitter RT-1230(V)/URC-94(V). 3.5.1 Physical characteristics. 3.5.1.1 Size. The overall size of the receiver/transmitter shall not exceed 49.53 centi- meters (cm) (lminches(in) wide by 49.53 cm (19.5 in) deep by 20.32 cm (8.0 in) high for the RT-l23O(V)-l/URC-94(V) and 49.5
34、3 cm (19.5 in) wide by 50.80 cm (20.0 in) deep by 22.86 cm (9.0 in) high for the RT-1230(V)-2/URC-94(V). (85 pounds). 3.5.1.2 W. The weight of the receiver/transmitter shall not exceed 38.55 kilograins (kg) 3.5.1.3 Modular construction. The receiver/transmitter shall use mdular construction to the m
35、aximum extent practicable. 3.5.2 Environmental service conditions. The receiver/transmitter shall be capable of con- tinuous reliable operation within the performance limits specified herein. mitter shall operate within tolerances throughout the specified tests without alignment or adjust- ment, oth
36、er than accessible controls normally employed for operation of the equipment. when exposed to the high and ?ow temperatures specified in 3.5.2.1.1 and 3.5.2.1.2. The receiver/trans- 3.5.2.1 Temperature ran es. The receiver/transmitter shall maintain specified performances 3.5.2.1.1 SSB (US6 and LSB)
37、 and AM. in accordance win Range 2 of MIL-E-ImO. The operating and non-operating temperatures shall be 3.5.2.1.2 FM and CW. The operating temperature range sh811 be from -28OC Celsius(:) to +5OoC. The non-operating temperature range shall be from -62OC to +71 C. 3.5.2.2 Humidity. The receiver/transm
38、itter shall maintain the specified gerformance wheri exposed to a rmhumidity of 85 percent at an operating temperature of +40 C for both con- tinuous and intermittent periods. 3.5.2.3 Salt fo . The receiver/transmitter shall comply with the salt fog requirement specified in MdOO. 4 Provided by IHSNo
39、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-28848 ( EC) 3.5.2.4 Shock. The receiver/transmitter shall be capable of withstanding the Grade A, lightweight Typ= Class II, shock test of MIL-S-901 when mounted on the MT-4883/URC-94(V) shock mount. - 3.5.2.5 Vib
40、ration. The receiver/transmitter shall be capable of withstanding and shall conform to the performance requirements specified herein while subjected to the Type I vibration test of MIL-STD-167-1, when mounted on the MT-4883/URC-94(V) shock mount. 3.5.2.6 Inclination. The receiver/transmitter shall c
41、omply with the inclination requirement of MIL -E- 16400. 3.5.3 Electrical design and construction. 3.5.3.1 Electrical power characteristics. The receiver/transmitter shall be designed to operate from primary power sources, as measured at the input of the equipment, as specified in 3.5.3.1.1 and 3.5.
42、3.1.2. 3.5.3.1.1 AC power source. 3.5.3.1.2 DC power source. 26.4 volts DC nominal 210 percent. 3.5.3.2 Reverse polarity protection. The receiver/transmitter shall include means to pro- tect the equipment against accidental reversal of polarity when connected to the DC power source. 3.5.3.3 Fuses. A
43、ll AC and DC electrical power inputs to the receiver/transmitter shall be protected by fmlow type fuses of adequate rating. 3.5.3.4 Input electrical power selection. A three-position switch located in the rear panel shall be proviaed to select the type of electrical power input, either 115 volts AC,
44、 230 volts AC, or DC. 115/230 volts AC +i0 percent single-phase 50 to 60 hertz (Hz). 3.5.3.5 Electrical power connectors. Separate connectors shall be provided for AC and DC power connectors. These connectors shall be located on the rear panel of the receiver/transmitter. 3.5.3.6 Bonding and groundi
45、ng. Bonding and grounding shall be in accordance with the require- ments of MIL-EO. 3.5.3.7 HF coupler power and control signals. The power and control signals shall be sup- plied to the C-Z184/RC-94(VJ Ht antenna coupler by the receiver/transmitter via a single multi- conductor cable. 3.5.3.7.1 Pri
46、mar The receiver/transmitter shall supply the primary input voltage required by the d;oltage of 22 to 40 volts DC. 3.5.3.7.2 Output control signals. The receiver/transmitter shall provide the HF coupler with the following control signals to permit automatic operation: a. Rechannel puise b. Transmit
47、keyline 3.5.3.7.3 Input control signals. The receiver/transmitter shall accept the following con- trol signais from the Hk coupler to permit automatic monitor, operation monitor, and operation of the coupler: a. Transmit keyline b. Keyline enable c. Tune power request d. Tune/fault indication 5 Prov
48、ided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-28848( EC) 3.5.3.8 VHF antenna control si nals. The receiver/transmitter shall provide the appropriate switching code signals required for kning the AS-l729/VRC antenna. 3.5.3.9 Amplifier-control powe
49、r. The receiver/transmitter shall provide the primary power required by the amplitier-control. 3.5.4 Mechanical design. 3.5.4.1 Mounting. 3.5.4.1.1 RT-1230( V)-l/URC-94( V) . The receiver/transmi tter RT-l230(V) -1/URC-94(V) shall be designed and constructed to be mounted into the base, shock mount, MT-4883/URC-94(V). ceiver/transmitter shall be easily removable from the mount with the use of two front surface fastening screws. combination shock and vibration munt designed tor
