1、MIL-T-4666 (USAF) 27 February 1958 MILITARY SPECIFICATION TRANSMITTING SET, RADIO AN/DRN-4 1. SCOPE 1.1 Scope.-This specification covers one type of radio transmitting set which transmits identification and direction finding signals to allow HF/DF fixing of a balloon carrier. 2. APPLICABLE DOCw6ENTS
2、 2.1 The following documents form a part of this specifi- cation. The applicable issue of the governmental documents shall be the issue in effeqt on the date of invitation for bids. .The applicable issues ofthe nongovernmental documents shall be those whioh are available in the files of the procurin
3、g activity and are made a part of the invitation for bids. SPECIFICAT IONS Mi li tary MIL-E-5400 Electronic Equipment, Aircraft, MIL-T-9107 Test Reports; Preparation Of MIL-T-9726 Transmitter, Radio T-547/DRN-4 MIL-K-9749 Keyer KY-216/DRN-4 MIL-P-17555 Preparation For Delivery Of General Specifiaati
4、on For Electronic Equint,Misoellaous Electrical Equiests.=The Transmitting Set, Radio AY/ DRN-4 shal be subjected to the following electrical teirtsr 4.4.2 .i Release, Antenna NX-2136/DRN-4.-Eaoh antenna release shall be checked for c onti nuityr a. Between pins E and F of cable 1J-A7-1-E - b. Betwe
5、en pin D of cable 1J-A7-1-E and the terminal board and between pin A of cable 1J-A/-1-E and the terminal board, 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-L MIL-T-9bbb bb W 979970b 0324595 2 ! MIL-T-4666 (USAF) 0. Betmen ends of the inner oonc
6、hrctor and between ends of the outer conductor of the RG 58 B/U cable and its oonneottrs In addition to continuity, eaoh azrtenna release shall also be given the following testsr of 15-67-1 a. The RG 58 B/U cable and its connectors shall be The BG 58 B/U cable shall be given a 500 volt break- tested
7、 to insure a minimum leakage resistance of 100 mgohms between the inner and cuter conductors. b. c. Cable of 1J-A7-1-E shall be checked to insure a minimim leakage resistance of 100 megohms between circuits. for continuity: doim testo 4.4.2.2 Antenna AT-735/DRN-4.-Each antenna shall be tested a. Bet
8、ween the end of the antenna (insert the ohnnneter probe in the oblong slot near the center ofthe antenna reel) and the inner conductor lug. line and the outer conuctor lug b. Between the ground side of the own-wire transmission 4.4.2.3 Battery cable.-Each battery oable shall be oheoked for continuit
9、y as followst battery lug battery lug a. b. From pins A, B, C, and D of P-1408 to the negative From pins E, F, G, and H of P-1406 to the positive The battery oable shall also be tested for a minimum le-ge resistance of 100 megohms between circuits. cable shall be checked for continuity a8 follmr 4.4
10、.2.4 Interconnecting cable BJ-A6.-Each interconnecting From pin A of P401 to pin B of P406 From pin B of P401 to pin E of P46 From pin C of WU1 to pin C of P4d6 From pin D of P431 to pin F of P406 From pin F of P401 to pin F of P405 From pin J of P401to pinA of P405 From pin Id of P401 to pin S of P
11、401 From pin E of P405 to pin F of MO4 * . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-/ MIL-T-4bbb bb W 77999Ob 0324596 From pin H of P405 to pin B of wo4 Ram pin K of P401 to pin P of P401 From pin K of M1 to pin U of P401 From pin E of Pa$ to
12、pin C of PU5 From pin C of P405 to pin D of P4OS From pin J of wob to pin D of wo4 Rom pin K of P405 to pin 0 of P46 From pin L of Wo5 to pin D of P46 Rom pin A of wo8 to pin A of PM From pin H of P406 to pin E of p404 The interoonnecting cable shall also be oheoked for a minimum leakage resistance
13、of 100 mgohma bemen airouite. 4.4.2.5 Coaxial oable BJ-B3.-Eaoh oosxial oable shall be given the following electrical tests: a. Each oable shall be oheoked for continuity.fram d to b. Each cable shall be giwn a short airouit tost between 0. end the tact that the Govermnt my have forrmlated, hrnished
14、, or in any vmy supplied the said drawings, specifications, or other a - . - . -. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-4bbb bb 9999906 0324598 8 MILT4666 (USAF) data is not to be regarded bv implication or otherwise as in any manner
15、licensing the holder or any other person or corporation, or conveying.any rights or permission to manufacture, use, or sell any patented invention that may in any way be related thereto. LRI/cot CRZDP GPO BI 1385 / 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
