MIL-DTL-55288E
3.8.5 Control cable voltage (see 4.8.5). The rotary solenoid switch operating voltages at the base assembly shall
be as stated in table IV. The manual/automatic band switch shall operate satisfactorily and index correctly when the
dc voltage present on the band switch pins is as stated in table IV. The input voltage is to be 24 V dc.
TABLE IV. Control cable voltage. 1/
Voltages at pin
Band
Freq.
AN/VRC-12
segment
MHz
band
N
A
D
E
F
H
J
1
30-33
1
24
24
24
0
0
0
0
2
33-37
1
24
24
0
24
0
0
0
3
37-42
1
24
24
0
0
24
0
0
4
42-47.5
1
24
24
0
0
0
24
0
5
47.5-53
1
24
24
0
0
0
0
24
6
53-56
2
24
0
24
0
0
0
0
56-60
2
24
0
0
24
0
0
0
7
60-65
2
24
0
0
0
24
0
0
8
65-70.5
2
24
0
0
0
0
24
0
9
70.5-76
2
24
0
0
0
0
0
24
10
1/ Pin C is Ground - all voltages dc.
3.9 Bounce preconditioning. The MX-6707/VRC shall be capable of meeting the requirements specified herein,
without subsequent processing, after subjection to the bounce preconditioning of 4.6 (also see 4.5).
3.10 Air seal (see 4.9). When the antenna is tested as specified in 4.9, there shall be no decrease in vacuum.
3.11 X-ray (see 4.11). When the AS-1730/VRC is tested as specified in 4.11, the internal assembly and
dimensions above the stainless steel ferrule shall be observed to determine that the strain relief loop at top of AS-
1730/VRC is in accordance with CECOM DWG SM-D-542009, and that there is continuity at the 50 to 125 ohm
junction.
3.12 Interchangeability (see 4.12). Like units, assemblies, subassemblies, and replaceable parts shall be
interchangeable (see 4.12).
3.13 Finish (see 4.13). The Antenna AS-1729/VRC or the Matching Unit-Base, or the Antenna Elements (Upper
Whip Section, Lower Whip Section) when ordered separately shall be finished with Chemical Agent Resistant Coating
(CARC) in accordance with procedures specified in 4.13. The finishing requirements as shown on CECOM DWG
SM-D-415406, notes 1.8, 7, 10, and CECOM DWG SM-D-542010, note 7, or elsewhere, are suspended and replaced
by CARC.
8
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