Icom IC-M424 Instruction Manual - Page 20

■ Receiving and transmitting, Weather channels

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4 BASIC OPERATION DDWeather channels (U.S.A. and Australian version transceiver only) The transceiver has 10 weather channels. These are used for monitoring broadcasts from NOAA (National Oceanographic and Atmospheric Administration.) The transceiver can automatically detect a weather alert tone on the selected weather channel or while scanning. (p. 17) qqPush [CH/WX] once or twice to select a weather channel. • "WX" appears when a weather channel is selected. • "WX " appears when the Weather Alert function is in turned ON. (p. 78) wwPush [∫](CH) or [√](CH) to select a channel. • Pushing [Y]/[Z] on the microphone selects only Favorite channels. When weather alert is OFF. When weather alert is ON. 11 ■■Receiving and transmitting CAUTION: Transmitting without an antenna will damage the transceiver. qqHold down [PWR](Dial) to turn ON the power. wwSet the audio and squelch levels. (p. 15) ➥➥ First, open the squelch. Then, adjust the audio output level. After that, adjust the squelch level until the noise just disappears. eeChange the channel group. (p. 10) rrPush [∫](CH) or [√](CH) to select a channel. (pp. 9, 10) • Pushing [Y]/[Z] on the microphone selects only Favorite chan- nels. • W hen receiving a signal, " " appears and audio is heard. • Further adjustment of the volume level may be necessary. ttPush [LO/DX] to turn the receive Attenuator function ON or OFF, if necessary. • Only U.S.A. and Australian version transceivers. • "LOCAL" appears when the receive Attenuator function is ON. yyPush [HI/LO] to select the output power, if necessary. • "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. uuHold down [PTT] to transmit, then speak at your normal voice level. • " " appears. • Channel 70 cannot be used for transmission other than DSC. iiRelease [PTT] to receive.

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11
4
BASIC OPERATION
Weather channels
D
(U.S.A. and Australian version transceiver only)
The transceiver has 10 weather channels. These are used for
monitoring broadcasts from NOAA (National Oceanographic
and Atmospheric Administration.)
The transceiver can automatically detect a weather alert tone
on the selected weather channel or while scanning. (p. 17)
Push [CH/WX] once or twice to select a weather channel.
q
• “WX” appears when a weather channel is selected.
• “WX
” appears when the Weather Alert function is in turned
ON. (p. 78)
Push [
w
∫
](CH) or [
√
](CH) to select a channel.
• Pushing [
Y
]/[
Z
]
on the microphone selects only Favorite chan-
nels.
When weather alert is OFF.
When weather alert is ON.
Receiving and transmitting
■
CAUTION:
Transmitting without an antenna will damage
the transceiver.
Hold down [PWR](Dial) to turn ON the power.
q
Set the audio and squelch levels. (p. 15)
w
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)
e
Push [
r
∫
](CH) or [
√
](CH) to select a channel. (pp. 9, 10)
• Pushing [
Y
]/[
Z
]
on the microphone selects only Favorite chan-
nels.
• When receiving a signal, “
” appears and audio is heard.
• Further adjustment of the volume level may be necessary.
Push [LO/DX] to turn the receive Attenuator function ON
t
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.
y
• “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
u
voice level.
•“
” appears.
• Channel 70 cannot be used for transmission other than DSC.
Release [PTT] to receive.
i