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4-1
4. OPTION KIT
4.1 Antenna BK relay
With the optional antenna BK relay, the antenna coupler can be modified to enable SSB
communications when there is RX ANT trouble.
The cable marked with the asterisk on page 2-1 should be "hooked" (by using a cable tie,
etc.) near the R_ ANT connector so that it can be connected immediately when there is RX
ANT trouble.
T/R ANT
R. ANT
RX ANT
TX ANT
ANT BK
RELAY
board
(option)
AT-5000
FS-5070T
W4
J1
J1
J3
J2
W5
COUPLER
board
J2
TB1
Connecting radiotelephone to antenna BK relay equipped antenna coupler
Mounting of the antenna BK relay
Necessary parts: Antenna BK relay (Type: OP05-35-H, Code No.: 000-056-878)
Name Type Code No. Qty Remarks
Antenna BK Relay board 05P0359 005-597-150 1 PCB assembly
VH harness 05-468 (2-2P) 005-927-590 1 W4
PH harness 05-469 (3-3P) 005-927-600 1 W5
Panhead screw M3X8 000-881-404 5
1. Open the antenna coupler, and mount the Antenna BK Relay board using five panhead
screws supplied as shown below.
Coupler Board
A
ntenna BK
Relay Board
Coaxial cable
Connect to Transceiver unit Grommet