![background image](http://html1.mh-extra.com/html/icom/im423/im423_instruction-manual_4301608021.webp)
12
4
BASIC OPERATION
New2001
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
12
Information
✓
The Noise Cancel function reduces random noise components
in the transmit and/or receive signal. See page 80 for details.
Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CANNOT
be lawfully used by the general public in U.S.A. waters.
IMPORTANT:
To maximize the readability of your transmit-
ted signal, pause a few seconds after pushing [PTT], hold
the microphone 5 to 10 cm (2 to 4 inches) from your mouth
and speak at a normal voice level.
NOTE for the TOT (Time-out Timer) function
✓
The TOT function inhibits continuous transmission beyond a
preset time period after the transmission starts.
10 seconds before transmission is cutoff, a beep sounds to
indicate the transmission will be shut down and “TOT” appears
in the channel name field. Transmission is not possible for 10
seconds after this shut down.
Microphone
t
y
q
w
i
u
r
y
r
Summary of Contents for iM423
Page 98: ...89 10 CONNECTIONS AND MAINTENANCE Gasket Mounting base Cap Nut...
Page 104: ......
Page 105: ...MEMO...
Page 106: ...MEMO...