Icom IC-M91D - Basic Operation - Transmitting and Receiving; Transmitting and Receiving Procedures

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BASIC OPERATION
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Receiving and transmitting ■
CAUTION: Transmitting without an antenna will damage
the transceiver.
Hold down [ q
] for 1 second to turn power ON.
Set the volume and squelch levels with [VOL/SQL]. w
Push e
[Y](CH)/[Z](CH) to select the desired channel.
• Further adjustment of the audio may be necessary at this point.
r Select [HI/LO] to select the output power if necessary.
• “HI” appears when high power is selected; “LOW” when low
power is selected.
• Choose low power for short range communications, choose
high power for longer distance communications.
• Some channels are for low power only.
t Hold down [PTT] to transmit, then speak into the microphone.
• “TX” appears.
• Channel 70 cannot be used for transmission.
y Release [PTT] to receive.
Information ✓
The Noise Cancel function reduces random noise com- ➥
ponents in the transmit and/or receive signal. See pag
e
86
for details
The transceiver monitors channel 70 every specifi c ➥
time period even when standing by on an operating
channel.
• “DSC CHECK” is displayed when channel 70 is busy.
• The channel 70 monitoring confi guration can be changed in
DSC Settings. See page 69 for details.
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 into the microphone at a normal voice level.
NOTE: The transceiver has a power save function to con-
serve battery power. The power save function is activated
automatically when no signal is received for 5 seconds.
To prevent accidental prolonged transmission, the trans-
ceiver has a time-out timer function. This timer cuts a
transmission OFF after 5 minutes of continuous transmis-
sion.
q
Microphone
r
e
t
w
y