ICOM 279501 Manual De Usuario

9

4

BASIC OPERATION

■ Receiving and transmitting

q Rotate [VOL] clockwise to turn power ON.
w UseSet the volume and squelch level.

➥ Push [SQL•

MONI

], and push [

√] to open the squelch.

➥ Push [SQL•

MONI

] to stop “SQL” indicator blinking, then

rotate [VOL] to set the volume level.

➥ Push [SQL•

MONI

], and push [

∫]/[√] 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 trans-
mitted 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 con-
serve the battery power. The power save function activates
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 trans-
mission OFF after 5 min. of continuous transmission.

Transmitting without an antenna may

damage the transceiver.

q Power ON
e Set volume

Speaker

y Push to transmit
u Release to receive

r Set channel
w Set the squelch level

w Set the squelch level
e Set volume

Microphone

t Set output power

IC-M90.qxd  04.8.23  3:53 PM  Page 9