Receiving And Transmitting - Icom iM323 Instruction Manual

4
BASIC OPERATION

Receiving and transmitting

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CAUTION: Transmitting without an antenna will damage
the transceiver.
Hold down [PWR](Dial) to turn ON the power.
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Set the audio and squelch levels. (p. 14)
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First, open the squelch. Then, adjust the audio output
➥
level. After that, adjust the squelch level until the noise
just disappears.
Change the channel group. (p. 10)
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Push [ ∫](CH)/[√](CH) to select a channel. (pp. 9, 10)
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• Pushing [Y]/[Z] on the microphone also selects a channel.
• When receiving a signal, "
• Further adjustment of the volume level may be necessary.
Push [LO/DX] to turn the receive Attenuator function ON
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or OFF, if necessary.
• Only U.S.A. and Australian version transceivers.
• "LOCAL" appears when the receive Attenuator function is ON.
Push [HI/LO] to select the output power, if necessary.
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• "25W" appears when high power is selected, and "1W" appears
when low power is selected.
• Choose low power for short range communications, choose high
power for longer distance communications.
• Some channels are for only low power.
Hold down [PTT] to transmit, then speak at your normal
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voice level.
• " " appears.
• Channel 70 cannot be used for transmission other than DSC.
Release [PTT] to receive.
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12
" appears and audio is heard.
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" ap-
pears in the channel name field. Transmission is not possible
for 10 seconds after this shut down.
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t y
Microphone
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w q r y