ICOM 270600 Manuale Utente
8
3
BASIC OPERATION
New2001
■ Receiving and transmitting
CAUTION:
Transmitting without an antenna may dam-
age the transceiver.
q Rotate [VOL] to turn power ON.
w Set the audio and squelch levels.
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 To change the channel group, push both [Y] and [Z] on
the transceiver. (p. 7)
r Push [Y] or [Z] to select the desired channel. (p. 6)
• 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
• 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 (M).
• “
” appears.
• Channel 70 cannot be used for transmission other than DSC.
u Release [PTT] to receive.
Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CAN-
NOT be lawfully used by the general public in U.S.A. wa-
ters.
NOT be lawfully used by the general public in U.S.A. wa-
ters.
IMPORTANT: To maximize the readability of your trans-
mitted signal, pause a few sec. after pushing [PTT], hold
the microphone 2 to 4 inches (5 to 10 cm) from your mouth
and speak into the microphone (M) at a normal voice level.
mitted signal, pause a few sec. after pushing [PTT], hold
the microphone 2 to 4 inches (5 to 10 cm) from your mouth
and speak into the microphone (M) at a normal voice level.
u
r
t
M
y
q
M: Microphone
w
r
e
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