Icom IC-M502A [17/74] U i c u i c

Icom IC-M502A [17/74] U i c u i c
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DUALWATCH/TRI-WATCH
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.
Operation
q Select Dualwatch or Tri-watch in Set mode. (p. 39)
w Select the desired operating channel.
e Push
[
[
CH/WX
CH/WX
]
]
(
(
U/I/C)
U/I/C) 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
CH/WX
]
]
(
(
U/I/C)
U/I/C)
again.
DW
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
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.
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