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Receiving and transmitting – Icom IC-M422 User Manual

Page 51

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45

12

COMMANDMIC II™ HM-157

New2001

12

Receiving and transmitting

q Push [PWR] for 2 sec. to turn power ON.
w Set the audio and squelch levels.

➥ Push [SQL•

L

], then push [Z

Z] until the noise ap-

pears.

➥ Push [VOL•

PA/RX

], then push [Y

Y] or [Z

Z] to ad-

just the audio output level.

➥ Push [SQL•

L

], then push [Y

Y] until the noise dis-

appears.

e To change the channel group, push [CH/WX•

U/I/C

]

while pushing [H/L]. (p. 44)

r Push [Y] or [Z] to select the desired channel. (p. 44)

• When receiving a signal, “

” appears and audio is emitted

from the speaker.

• Further adjustment of the audio level may be necessary.

t Push [LO/DX•

SCR

] to turn the receive Attenuator

function ON or OFF, if necessary.

• “LOCAL” appears when the receive Attenuator function is in use.

y Push [H/L] 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.

• “

” 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 (voice), pause a few sec. after pushing [PTT],
hold the microphone 2 to 4 inches (5 to 10 cm) from your
mouth and speak at a normal voice level.

w Set volume

w Set squelch

t Turn attenuator
function

y Set output power

e Select channel
group

e Select channel
group

q Turn power ON

w Set volume
and squelch
r Set channel

u Push to
transmit

i Release
to receive

Microphone

IC

DW

MONI

DIM

MONI

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