I Receiving And Transmitting - Icom IC-M422 Instruction Manual

I Receiving and transmitting

q Push [PWR] for 2 sec. to turn power ON.
w Set the audio and squelch levels.
➥ Push [SQL•
], then push [Z Z ] until the noise ap-
L
MONI
pears.
➥ Push [VOL•
PA/RX
DIM
just the audio output level.
➥ Push [SQL•
], then push [Y Y ] until the noise dis-
L
MONI
appears.
e To change the channel group, push [CH/WX•
while pushing [H/L]. (p. 44)
r Push [Y] or [Z] to select the desired channel. (p. 44)
• When receiving a signal, "
from the speaker.
• Further adjustment of the audio level may be necessary.
t Push [LO/DX•
] to turn the receive Attenuator
SCR
IC
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.
], then push [Y Y ] or [Z Z ] to ad-
U/I/C
DW
" appears and audio is emitted
COMMANDMIC II™ HM-157
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.
]
q Turn power ON
u Push to
transmit
i Release
to receive
w Set volume
and squelch
r Set channel
12
e Select channel
group
y Set output power
w Set volume
12
w Set squelch
t Turn attenuator
function
Microphone
e Select channel
group
45