Dualwatch/Tri-Watch; I Description; I Operation - Icom IC-M421 Instruction Manual

I Description

Dualwatch monitors Channel 16 while you are receiving an-
other channel; tri-watch monitors Channel 16 and the call
channel while receiving another channel.
DUALWATCH/TRI-WATCH SIMULATION
Dualwatch
• 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
Tri-watch

I Operation

q Select Dualwatch or Tri-watch in set mode. (p. 46)
w Push [L] or [M] to select the desired operating channel.
e Push [CH•DUAL] for 1 sec. to start Dualwatch or Tri-watch.
• " " appears during dualwatch; "
ing tri-watch.
• A beep tone sounds when a signal is received on Channel 16.
r To cancel Dualwatch or Tri-watch, push [CH•DUAL] again.
[Example]: Operating tri-watch on INT channel 25.
4
" appears dur-
Tri-watch starts.
Signal is received on call
channel.
Signal is received on
Channel 16 takes priority.
Tri-watch resumes after
the signal disappears.
3
4
11