FM Bite/Audio Interface (GRC-206)

© Brooke Clarke 2010

Background
ID
Cable
Links
FM Bite/Audio Interface (GRC-206)
FM Bite/Audio Interface (GRC-206)
FM Bite/Audio Interface (GRC-206)
FM Bite/Audio Interface (GRC-206)
FM Bite/Audio Interface (GRC-206)
FM Bite/Audio Interface (GRC-206)

Background

The early versions of the GRC-206 system used either the RT-246 or RT-524 low band FM tactical radios.  This box came as part of the MT-6250 equipment rack.  Its purpose is:
When the GRC-206 was upgraded to use the SINCGARS radios (RT-1439, RT-1523) this box was removed and as far as I can tell was not replaced so the SINCGARS radios need to be manually operated from the front panel rather than from the C-11166 Universal Remote System Control  URSC.  This seems strange since it would be possible to make an interface box that allowed full remote control of the SINCGARS radios.  If you know more about this please let me know.

ID

contract: F04606-89-D-0110-0001
p/n:        812132-801
s/n:        AA0066
Mfr:       37695 Magnavox, Ft. Wayne, IND, U.S.

Mounting Plate
p/n: 37695-939265-801

Cable

Internal Cable Table
2x15
Wire
Func
J3 SDU
J4 VHF FM (REMOTE)
J5 KY-57
1 = 16
Gry CCC


B (Ch 2)

2 = 17
Vio CCC


D (Ch 4)

3 = 18
Wht CCC


C (Ch 3)

4
nc
TP2
nc
nc
nc
5
Wht/Blu

B


6
Wht/Blk



A
7
Wht/Brn



B
8
Blu CCC


E (CH 5)

9
Grn CCC



G
10
Yel CCC


F (Ch 6)

11
Red CCC


H (Ch 7) (or K CH 9?)

12 = 27
Wht/Vio


A (CH 1)

13
Blk
Gnd

L (CH 10)

14
Brn CCC


G (Spare ?)

15
Org

D


16
Red



H
17
Wht CCC



C
18
Gry CCC



D
19
Blu CCC



F
20
Org CCC


J (Ch 8)

21
Grn CCC


H (Ch 7) (or K Ch 9?)

22
Vio CCC



E
23
Blk
Gnd A


24
Blk
Gnd E


25
Wht/Yel


M (+25.5 VDC Switched)

26
Blk



K
27
Yel



J
28
nc

nc
nc nc
29
nc
TP1
nc nc nc
30
Wht/Red

C



CCC = Coax Center Conductor

Links

available from Tony Snider
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page created 25 Dec 2008.