ICOM 334000 Manuale Utente

■ Receiving and transmitting

CAUTION: Transmitting without an antenna can damage 
the transceiver.

q Hold down [

] to turn ON the power.

w Set the volume and squelch levels.
   You can enter each adjustment mode by pushing [VOL/

SQL].

 ➥ 

 Enter the squelch adjustment mode, and then push [

Z] one or 

more times to open the squelch.

  ➥  Enter the volume adjustment mode, and then push [Y] or [Z] 

to adjust the volume level.

  ➥  Enter the squelch adjustment mode again, and push [Y] until 

the noise just disappears.

e  Push [VOL/SQL] again to exit the squelch adjustment mode.
r Push [

Y] or [Z] to select a desired channel.

  •  When receiving a signal, “

” appears and audio is heard 

from the speaker.

  •  You may want to further adjust the audio level.

t Push [Hi/Lo] to select the output power if necessary.

  •  “LOW” appears when low power is selected; no icon is 

displayed when high power is selected.

  •  Choose low power for short range communications; choose 

high power for longer distance communications.

  • Some channels are for only low power communication.

y  Hold down [PTT] to transmit, then speak into the microphone.

  • “

” appears.

  •  Channel 70 cannot be used for transmission.

u Release [PTT] to receive.

IMPORTANT: To maximize the readability of your trans-
mitted signal, pause for a second 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:  To conserve battery power, the transceiver’s 

Power Save function automatically activates when no sig-
nal is received for 5 seconds.

For U.S.A version: To prevent prolonged transmission, a 
time-out timer cuts OFF after 5 minutes of continuous 
transmission.

11

4

BASIC OPERATION

Microphone

t Set output 
     power.

q Power ON.

y Push to
     transmit.
u Release to
     receive.

rSet channel.

Enter the volume 
and squelch ad-
justment mode.

w

w Adjust the 

volume and 
squelch  level.