ICOM 305400 ユーザーズマニュアル

7

3

BASIC OPERATION

New2001

n

 

 Transmitting without an antenna may dam-

age the transceiver.

q

 Rotate 

[VOL] to turn ON the power.

w

 Set the audio and squelch levels.

  ➥

Rotate 

[SQL] fully counterclockwise.

  ➥

Rotate 

[VOL] to adjust the audio output level.

  ➥

Rotate 

[SQL] clockwise until the noise disappears.

    While in the DSC operation, please make sure you set 

the squelch correctly.

e 

 Push 

[U/I/C] (both [Y] and [Z]) to change the channel 

group. (p. 6)

r

  Push 

[Y] or [Z] to select a desired channel. (pp. 5, 6, 52)

 • When receiving a signal, “

” appears and audio is emitted 

from the speaker.

 • Further adjustment of

[VOL] may be necessary.

t  

Push 

[HI/LO] on the microphone 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.

y 

 Hold down 

[PTT] to transmit, then speak into the micro-

phone (*).

 • “

” appears.

 • Channel 70 cannot be used for transmission other than DSC.

u 

Release 

[PTT] to receive.

IMPORTANT: To maximize the readability of your trans-
mitted signal, pause a few seconds after holding down 
[PTT], hold the microphone 5 to 10 cm from your mouth 
and speak into the microphone (*) at a normal voice 
level.

u

w

r

e

M

q

y

r

t

M: Microphone

4

The TOT function inhibits continuous transmission over a 
preset time period after the transmission starts.
A beep sounds 10 seconds before the 

TOT function acti-

vates,

 to indicate the transmission will be shut down and 

“TOT” appears on the channel comment indicator. Transmis-
sion is not possible for 10 seconds after this transmission 
shut down.