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9
4
BASIC OPERATION
4
■
Receiving and transmitting
CAUTION:
Transmitting without an antenna may damage the trans-
ceiver.
q
Rotate [VOL] clockwise to turn power ON.
w
Set the volume and squelch level.
➥
Push [SQL•
MONI
], and push [
Z
] to open the squelch.
➥
Push [SQL•
MONI
] to stop the squelch indicator blink-
ing, then rotate [VOL] to set the volume level.
➥
Push [SQL•
MONI
], and push [
Y
]/[
Z
] to set the squelch
level.
e
Push [
Y
]/[
Z
] to select the desired channel.
- When receiving a signal, the transmit/receive indicator lights
green while audio is emitted from the speaker.
- Further adjustment of [VOL] may be necessary at this point.
r
Push [Hi/Lo•
] to select the output power if necessary.
- “LOW” appears when low power is selected; “MID” appears
when middle power is selected; no indication when high power
is selected.
- Choose low power to conserve battery power, choose high
power for longer distance communications.
- Some channels are for low power only.
t
Push and hold [PTT] to transmit, then speak into the
microphone.
-
The transmit/receive indicator lights red while transmitting.
- Channel 70 cannot be used for transmission.
y
Release [PTT] to receive.
IMPORTANT:
To maximize the readability of your transmit-
ted signal, pause a few sec. after pushing [PTT], hold the
microphone 5 to 10 cm (2 to 4 inches) from your mouth
and speak into the microphone at a normal voice level.
NOTE:
The transceiver has a power save function to
conserve the battery power. The power save function acti-
vates automatically when no signal is received for 5 sec.
To prevent accidental prolonged transmission, etc., the
IC-M90 has a time-out timer function. This timer cuts a
transmission OFF after 5 min. of continuous transmission.
MIC
/SP
q
Power ON
w
Set volume
Speaker
t
Push to transmit
y
Release to receive
w
Set the squelch level
e
Set channel
w
Set the squelch level
Microphone
r
Set output power