Call Channel Programming; Microphone Lock Function; Display Backlight - Icom IC-M604A Instruction Manual

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3
BASIC OPERATION

■ Call channel programming

The Call channel is used to select Channel 9 (default),
however, you can program the Call channel with your most
often-used channels in each channel group for quick recall.
q While holding down [H/L], push [CH/WX] several times to
select the desired channel group (USA, International or
Canada) to be programmed.
w Hold down [16•9] for 1 second to select the Call channel
of the selected channel group.
• "CALL" and the Call channel number are displayed.
e Hold down [16•9] again for
3 seconds (until a long beep
changes to 2 short beeps)
to enter the Call channel
programming mode.
• Channel number starts
blinking.
r Rotate [SELECTOR] to
select the desired channel.
t Push [16•9] to program
the displayed channel as
the Call channel.
• Push [CLR] to cancel.
• The channel number stops
blinking.
10
9
+06
%#..
6#)
’0
’9
76% 
%#..+0)
9
+06
%#..
&72
’0
’9
76% 
+06.

■ Microphone lock function

The Microphone lock function electrically locks [Y]/[Z] and
[HI/LO] keys on the supplied microphone. This prevents
accidental channel changes and function access.
➥ While holding down [HI/LO] on the microphone, turn ON
the power to turn the Microphone lock function ON or OFF.
[Y]/[Z]

■ Display backlight

The function display and keys can be backlit for better
visibility under low light conditions.
➥ After pushing [O], push [3•
[SELECTOR] to adjust the brightness of the LCD and key
backlight, then push [ENT].
• The backlight is adjustable in 7 levels, or set to OFF.
[HI/LO]
] then rotate
DIM

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