Tone Aeert, System - Kenwood TM-241A Instruction Manual
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5-11 TONE ALERT SYSTEM
The
Tone
Alert
function
will
provide
an
audible
"Alarm'' to signal when someone is transmitting on the
frequency you are monitoring.
Note
1. When using the CTCSS function the incoming sig-
nal must be present for approximately 2 seconds
in order for the Tone Alert function properly.
2. When the DTSS function is on, the bell function
works only when the DTSS code matches.
3. When the paging function is on, the bell function
works only when the paging code matches.
1. Adjust the SQL control to the threshold point.
2. If you will be using the CTCSS function you should
select
the
proper
tone
frequency
and
ensure
the
CTCSS indicator is on.
If you will be using the DTSS function you should
select the proper DTSS codes and ensure the DTSS
indicator is on.
If you will be using the PAGING function you should
select the proper PAGING
codes
and ensure the P
indicator is on.
3. Press the F key and then the TONE/T.ALT key. The
T.ALT indicator will light.
. When a signal is received and the squelch is open, an
alarm
sounds
for about
five seconds,
the T.ALT
indicator flashes, and the elapsed time count begins.
. The elapsed time is displayed in minutes to up to 59
hours 59 minutes. If a new signal is received during
counting,
the
elapsed
time
is cleared,
and
the
elapsed time from the new signal being received is
counted.
Flashing
|
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. If a key is pressed while the elapsed time is being
displayed, the T.ALT function is released.
. To release the T.ALT function when no signal is being
received, press the TONE/T.ALT key again
Notes
1. When the PF key on the microphone is set as the
monitor key, the voice can be monitored by press-
ing the PF key while the T.ALT function is working.
2. The T.ALT function may fail if the received signal is
abandoned
(audio
low-frequency
distortion,
igni-
tion noise, etc.). In this case, the interference can
be reduced
by installing an optional TSU-6
and
setting the CTCSS frequency to 141.3 Hz or lower.
When a repeater is used, the CTCSS function is not
available.
It is recommended
to use it with the
DTSS function.
3. The
tone
Alert
System
can
not
be
use
in
conjunction with Scan.
47
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