Icom IM422 Marine Radio User Manual


 
12
DUALWATCH/TRI-WATCH
5
Description
Dualwatch monitors Channel 16 while you are receiving
another channel; Tri-watch monitors Channel 16 and the call
channel while receiving another channel. Dualwatch/Tri-watch
is convenient for monitoring Channel 16 when you are oper-
ating on another channel.
Operation
q Select Dualwatch or Tri-watch in Set mode. (p. 33)
w Push [Y] or [Z] to select the desired operating channel.
e Push [CH/WX
DUAL] for 1 sec. to start Dualwatch or Tri-
watch.
• “ ” blinks during Dualwatch; “ ” blinks during Tri-watch.
• Abeep tone sounds when a signal is received on Channel 16.
r To cancel Dualwatch/Tri-watch, push [CH/WXDUAL] again.
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 the 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
[Example]: Operating Tri-watch on INT Channel 25
Tri-watch starts.
Signal is received on call
channel.
Signal is received on
Channel 16 takes priority.
Tri-watch resumes after
the signal disappears.