ICOM 279100 Manuale Utente
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BASIC OPERATION
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■
Setting weather alert function
An NOAA broadcast station transmits a weather alert tone
before any important weather announcements. When the
weather alert function is turned ON, the transceiver detects
the alert, and sounds a beep tone until the transceiver is op-
erated. The previously selected (used) weather channel is
checked any time during standby, or while scanning.
• To turn ON the weather alert function, push
before any important weather announcements. When the
weather alert function is turned ON, the transceiver detects
the alert, and sounds a beep tone until the transceiver is op-
erated. The previously selected (used) weather channel is
checked any time during standby, or while scanning.
• To turn ON the weather alert function, push
, then hold
down [SQL•
WX-ALERT
] until “
” is displayed.
• To turn OFF the function, push
, then push [SQL•
WX-
ALERT
]. (“
” is displayed for 1 second).
■
Accessing the 121.5 MHz
emergency frequency
The IC-A24 and IC-A6 can set to the 121.5 MHz emergency
frequency quickly. This function can be activated even when
the key lock function is in use.
q
frequency quickly. This function can be activated even when
the key lock function is in use.
q
Push [121.5] for 2 seconds to select the emergency fre-
quency.
w
Push [CLR•
DEL
] to exit the emergency frequency.
■
Lock function
The lock function prevents accidental frequency changes
and accidental function activation.
q
and accidental function activation.
q
Push
, then push [7•
] to turn the lock function ON.
• “
” appears.
w
To turn the function OFF, repeat step q above.
• “
” disappears.
■
Side tone function
When using an headset (other manufacture’s products),
the
transceiver outputs your transmitted voice to the headset for
monitoring. Connect the optional headset with the trans-
ceiver when using this function (OPC-499
monitoring. Connect the optional headset with the trans-
ceiver when using this function (OPC-499
HEADSET
ADAPTER and headset are required
) (p. 33).
ï
Setting the side tone level
q
Push [PTT] to turn the transmit mode ON.
w
During transmit mode, rotate [DIAL] to adjust the monitor-
ing level.
• ‘ST--0’ is OFF and ‘ST--10’ is maximum level.
R WARNING! NEVER operate the transceiver with a
headset at high volume levels for long period. A ringing in
your ears may occur. If so, reduce the monitor level or
discontinue use.
headset at high volume levels for long period. A ringing in
your ears may occur. If so, reduce the monitor level or
discontinue use.
■
Setting beep tone
If desired, the beep tone, which sounds at the push of a
switch, can be set.
q
switch, can be set.
q
Push
, then push [8•
BEEP
] to enter the beep tone
setting mode.
w
Rotate [DIAL] to set the beep level.
• ‘BEP-- 0’ is OFF and ‘BEP-- 9’ is maximum level.
• 2 beeps sound tone to verify set beep tone level.
e
Push [CLR•
DEL
] to exit the beep tone setting mode.
IMPORTANT: Set the monitoring level to ‘ST--0’ when using
an optional HM-234
an optional HM-234
sPeaKer MicroPHone
, otherwise,
your voice will be heard from the speaker during transmitting.
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