Icom IC-M422 - Manual (Page 13)

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3
BASIC OPERATION
New2001
3
■ Receiving and transmitting
CAUTION: Transmitting without an antenna may dam-
age the transceiver.
q Push [VOL] for 2 sec. to turn power ON.
w Set the audio and squelch levels.
➥ Rotate [SQL] fully counterclockwise in advance.
➥ Rotate [VOL] to adjust the audio output level.
➥ Rotate [SQL] clockwise until the noise disappears.
e To change the channel group, push both [Y] and [Z] on
the transceiver. (p. 6)
r Push [Y] or [Z] to select the desired channel. (pgs. 5, 6)
• When receiving a signal, “ ” appears and audio is emitted
from the speaker.
• Further adjustment of [VOL] may be necessary.
t Push [LO/DX• IC ] to turn the receive Attenuator function
ON or OFF, if necessary.
• “LOC” appears when the receive Attenuator function is in use.
y Push [HI/LO] to select the output power if necessary.
• “LOW” appears 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.
u Push and hold [PTT] to transmit, then speak into the mi-
crophone (M).
• “ ” appears.
• Channel 70 cannot be used for transmission other than DSC.
i Release [PTT] to receive.
Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CAN-
NOT be lawfully used by the general public in U.S.A. wa-
ters.
IMPORTANT: To maximize the readability of your trans-
mitted signal, pause a few sec. after pushing [PTT], hold
the microphone 2 to 4 inches (5 to 10 cm) from your mouth
and speak into the microphone (M) at a normal voice level.
i
r y
M
u q
w r t e
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