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3.5 Preamp Setting (For FAX-5)
When using the preamp for the watch receiver antenna, set J3 on the W/R Board to
ACTIVE in the transceiver unit.
J2
J3
ACTIVE
ACTIVE
RX
05P0734
J1
Change jumper to
ACTIVE position.
J4
W/R Board, 05P0734
Furuno FS-2570 Telephone User Manual