ICOM 269700 사용자 설명서

■ Receiving and transmitting

Transmitting without an antenna may dam-

age the transceiver.

q Push 

] to turn power ON.

w Set the audio and squelch levels.

➥Rotate 

] fully counterclockwise in advance.

➥Rotate 

] to adjust the audio output level.

➥Rotate 

] clockwise until the noise disappears.

e To change the channel group, push 

while pushing 

]. (p. 7)

r Rotate 

] or push 

Y

Y

Y

Y

]/

Z

Z

Z

Z

] on the microphone

to select the desired channel.

• When receiving a signal, “BUSY” appears and audio is emitted

from the speaker.

• Further adjustment of 

] may be necessary.

• Use the optional Voice scrambler function for privacy. (p. 10)

t Push 

] to turn the receive Attenuator function ON

or OFF, if necessary.

• “LOCAL” appears when the receive Attenuator is in use.

y Push 

] to select the output power, if necessary.

• “25W” or “1W” appears when high or low power is selected, re-

spectively.

• Choose low power for short range communications, choose high

power for longer distance communications.

• Some channels are for selecting low power only.

u Push and hold 

] to transmit, then speak into 

∗

(Mi-

crophone).

• “TX” appears.
• Channel 70 cannot be used for transmission other than DSC.

Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83
CANNOT be lawfully used by the general public in
U.S.A. waters.

i Release 

] to receive.

IMPORTANT: To maximize the readability of your trans-
mitted signal, pause a few sec. after pushing 

], hold

the microphone 2 to 4 inches (5 to 10 cm) from your mouth
and speak into 

∗

(Microphone) at a normal voice level.

WATERPROOF

iM502

∗

(Microphone)

q

w

e

r

r

t

y

u i

3

BASIC OPERATION

8