Receiving And Transmitting - Icom IC-M505 Instruction Manual

3
BASIC OPERATION

■ Receiving and transmitting

CAUTION:
Transmitting without an antenna may dam-
age the transceiver.
q Push [POWER] to turn power ON.
w Set the audio and squelch levels.
➥ Rotate [SQL] fully counterclockwise in advance.
➥ Rotate [VOL] to adjust the audio output level.
➥ Rotate [SQL] clockwise until the noise disappears.
e While pushing and holding [H/L], push [DIAL•DUAL/
GRP] to change the channel group. (p. 7)
r Rotate [CHANNEL] to select the desired channel.
(pp. 6, 7)
• When receiving a signal, "BUSY" appears and audio is emitted
from the speaker.
• Further adjustment of [VOL] may be necessary.
t Push [H/L] to select the output power if necessary.
• "25W" or "1W" appears when high or low power is selected, re-
spectively.
The channels 75 and 76 in the international channel group are
limited to low power (1 W) only. And the output power selection
is inhibited on these channels.
• Choose low power for short range communications, choose
high power for longer distance communications.
• Some channels are for low power only.
y Push and hold [PTT] to transmit, then speak into the mi-
crophone.
• "TX" appears.
• Channel 70 cannot be used for transmission other than DSC.
u Release [PTT] to receive.
8
IMPORTANT: To maximize the readability of your trans-
mitted signal, pause a few sec. after pushing [PTT], hold
the microphone 5 to 10 cm from your mouth and speak
into the microphone at a normal voice level.
y
q
w w e r
Microphone
u i
t r e y