When Tr Antenna Is Used For Ch70 Wr - Furuno FM-8800D Service Manual

4.6 When TR Antenna is used for CH70 WR

When watching CH70 through TR antenna, a modification of internal wiring will be
necessary. In this case, CH70 cannot receive during VHF transmission.
Rx AMP
Q7
HPA
U1
Jumper
Simplex only
TX/RX
(05P0774A/B)
Connect the Mini-pin assembly (1) L-420 (Supplied material: Code 000-151-748)
between J5 on TX/RX board and J2 on CH70 RX board.
Pass the Mini-pin assembly
(1) through a hole.
J5
ANT
CH70 RX OUT
T/R
SW
DUPLEXER
DUP OUT
TX FIL
J1
DUP IN1
RX FIL
J2
DUP IN2
J4
ANT
J3
Fig. 4.6.1 Antenna Connection
TX/RX: J5
Fig. 4.6.2 Location of the connector
4-33
4.6 When TR Antenna is used for CH70 WR
CH70 RX
(05P0775)
J2
DUP RX
(05P0777)
CH70 RX ANT
ANT
CH70 WR: J2