Call Channel Programming; Microphone Lock Function; Display Backlight - Icom IC-M603 Instruction Manual

3
BASIC OPERATION

■ Call channel programming

You can program the call channel with your most often-used
channels in each channel group for quick recall.
q While pushing and holding [H/L], push [DIAL] several
times to select the desired channel group (INT, USA, ATIS
or DSC) to be programmed.
w Push and hold [16•C] for 1 sec. to select the call channel
of the selected channel group.
• "CALL" and call channel number appear.
e P u s h a n d h o l d [ 1 6 • C ]
again for 3 sec. (until a long
beep changes to 2 short
beeps) to enter call chan-
nel programming condition.
• C h a n n e l n u m b e r s t a r t s
blinking.
r Rotate [SELECTOR] to
select the desired channel.
t Push [16•C] to program
the displayed channel as
the call channel.
• Push [CLR] to cancel.
• The channel number stops
blinking.
10
25W INT CALL
TAG
34°34.506N
123°23.236W
UTC 12:00 CALLING
25W INT CALL
DUP
TAG
34°34.506N
123°23.236W
UTC 12:00 INTL

■ 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 pushing and holding [HI/LO] on the microphone,
turn power ON to toggle 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 [F], push [3•
TOR] to adjust the brightness of the LCD and key back-
light. Then push [ENT].
• The backlight is adjustable in 7 levels and OFF.
[HI/LO]
] then rotate [SELEC-
DIM