Furuno MARINE VHF RADIOTELEPHONE FM-3000 - Manual (Page 19)

10
3. Dualwatch/Tri-Watch
3.1 Description
Dualwatch monitors Channel 16 while you are receiving an-
other channel; Tri-watch monitors Channel 16 and call chan-
nel while receiving another channel.
3.2 Operation
q Select Dualwatch or Tri-watch in Set mode. (p. 38)
w Select the desired operating channel.
e Push [CH/WX] (
) for 1 sec. to start Dualwatch or
Tri-watch.
• “DUAL” appears during Dualwatch; “TRI” appears during Tri-
watch.
• A beep tone sounds when a signal is received on Channel 16.
r To cancel Dualwatch or Tri-watch, push [CH/WX] ( )
again.
U/I/C DW
U/I/C DW
[Example]: Operating Tri-watch on INT Channel 25.
DUALWATCH/TRI-WATCH SIMULATION
• If a signal is received on Channel 16, Dualwatch/Tri-watch
pauses on Channel 16 until the signal disappears.
• If a signal is received on call channel during Tri-watch, Tri-watch
becomes Dualwatch until the signal disappears.
• To transmit on the selected channel during Dualwatch/Tri-watch,
push and hold [PTT].
Dualwatch Tri-watch
Call channel
INT
25W
DUP
16 TAG
TRI
INT
25W
DUP
16 TAG
TRI
BUSY INT
25W CALL
16
TAG
TRI
BUSY INT
25W
DUP
16 TAG
TRI
Tri-watch starts.
Signal is received
on call channel.
Signal received on
Channel 16 takes
priority.
Tri-watch resumes
after the signal
disappears.