ICOM 279100 Manuale Utente
9
3
BASIC OPERATION
■
Receiving
q
Push [PWR] for 2 seconds to turn the power ON.
w
Push [SQL•
WX-ALERT
], then rotate [DIAL] counterclock-
wise to select the squelch level 0.
e
Rotate [VOL] to adjust the audio level.
r
Push [SQL•
WX-ALERT
], then rotate [DIAL] clockwise until
the noise is muted.
• “
” indicator disappears.
t
Set the desired frequency using [DIAL] or keypad.
y
When a signal is received on the set frequency:
• “
” indicator appears.
• Squelch opens and audio is emitted from the speaker.
When [SQL] setting is too “tight,” squelch may not open for
weak signals. To receive weaker signals, loosen the squelch.
weak signals. To receive weaker signals, loosen the squelch.
■
ANL function
While receiving, the ANL (Automatic Noise Limiter) function
reduces noise components such as those that are caused
by engine ignition systems while receiving.
• Push [ANL•
reduces noise components such as those that are caused
by engine ignition systems while receiving.
• Push [ANL•
SCAN
] to turn the ANL function ON/OFF.
“
” appears on the display while the ANL function is ON.
■
Channel spacing setting
If you set the channel spacing to only 8.33 kHz or only 25
kHz, the optional CS-A24 (#02)
kHz, the optional CS-A24 (#02)
cloning
software
and the
optional cloning cable are required.
See “Cloning using PC” (p. 25) for details.
See “Cloning using PC” (p. 25) for details.
■
Setting a squelch level
The transceiver has a noise squelch circuit to mute unde-
sired noise while receiving no signal.
q
sired noise while receiving no signal.
q
Push [SQL•
WX-ALERT
], then rotate [DIAL] to select the
squelch level.
• ‘SQL--0’ is open squelch and ‘SQL--24’ is tight squelch.
• “
” appears while the squelch is open.
w
Push [SQL•
WX-ALERT
] or [CLR•
DEL
] to exit the squelch
set mode.
■
Transmitting
q
Set the desired frequency in COM band using [DIAL] or
keypad.
keypad.
• COM band frequency range: 118.000–136.9917 MHz
w
Hold down [PTT] to transmit.
• “
” indicator appears.
e
Speak into the microphone at a normal voice level.
•
DO NOT hold the transceiver too close to your mouth or speak
too loudly. This may distort the signal.
too loudly. This may distort the signal.
r
Release [PTT] to return to receive.
CAUTION: Transmitting without an antenna may damage
the transceiver.
the transceiver.
NOTE: To prevent interference, listen on the frequency
before transmitting. If the frequency is busy, wait until the
channel is clear.
before transmitting. If the frequency is busy, wait until the
channel is clear.
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