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

3
BASIC OPERATION

■ Call channel programming

The Call channel is used to select Channel 9 (default), how-
ever, 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 (U.S.A., International or
Canada) to be programmed.
w Hold down [16•9] for 1 second to select the Call channel
of the selected channel group.
• " " and the Call channel number appear.
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 blink-
ing.
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 9 +06 +06 %#.. %#..
6#) 6#)
 ’0 0
’9  9
76%  76%    %#..+0) %#..+0)
9 9 +06 +06 %#.. %#..
&72 &72
 ’0 0
’9  9
76% 76%     +06. +06.

■ Microphone lock function

The Microphone lock function electrically locks [Y]/[Z] and
[HI/LO] keys on the supplied microphone. This prevents ac-
cidental 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 visibil-
ity under low light conditions.
➥ After pushing [O], push [3•
TOR] to adjust the brightness of the LCD and key back-
light, then push [ENT].
• The backlight is adjustable in 7 levels, or set to OFF.
[HI/LO]
] then rotate [SELEC-
DIM