Setting The Receiver Board - Furuno FS-1562 Manual

4. Setting the receiver board

A FAX-5+2.6m whip active antenna is usually used to receive DSC distress signal and
DSC general signal.
Set J3 on the RX board to ACTIVE to apply voltage to the antenna.
J2
Ref.OSC
05P0703:
DSC watch keeping receiver board
and
DSC general watch keeping receiver board (option).
455kHz
FIL
B4-10
ANT
ACTIVE
J3
DSC60