This function electronically locks all keys – Icom IC-M73 Plus User Manual
Page 20

12
4
BASIC OPERATION
New2001
12
■
The Call channel key is used
to select Channel 9* by default.
However, you can program
your most often-used channel
in each channel group for quick
recall.
* The channel may differ, depending on the transceiver version.
q
Hold down for 1 second several
times to select the desired channel
group
(USA, INT, CAN, ATIS)
to be pro-
grammed.
e
w e
Hold down for 1 second to select
the Call channel.
• “CALL” and Call channel number ap-
pear.
e
Hold down again for 3 seconds
(un-
til a long beep changes to 2 short beeps)
to enter the Call channel program-
ming mode.
• The Call channel number to be pro-
grammed blinks.
e
r e
Push
YZ
to select the desired
channel.
t
Push to program the displayed
channel as the Call channel.
• The Call channel number stops blinking.
■
This function electronically
locks all keys
(except for , and )
to
prevent accidental channel
changes and function access.
➥
Push for 1 second to turn the lock function ON or OFF.
Hold down
for 1 second
Appears while the lock
function is in use.
■
The monitor function releases
the noise squelch mute to
check the volume level. See
page 27 for details of the
monitor switch action.
➥
Hold down for 1 second to activate the monitor func-
tion.
• “” and “” appear and audio is heard.
Appears while the
monitor function is
in use.
Hold down
for 1 second