Kenwood TM-451A - Manual (Page 93)

TONE ALERT
Tone Alert provides an audible alarm to indicate when
someone is transmitting on the frequency you are
monitoring.
Tone Alert is an effective partner with CTCSS, Page, or
DTSS. When the correct signaling comes through, your
transceiver beeps to alert you of an incoming call from a
specific station.
ACTIVATING TONE ALERT
1 Tune to the prearranged frequency.
2 Activate CTCSS, Page, or DTSS if you want to use
these together with Tone Alert.
3 Press [F], [SHIFT].
• A "Bell" icon appears.
• Each time this key combination is pressed. Tone
Alert toggles ON and OFF.
4 When the correct signal is received, the transceiver
rings 3 times, the "bell" icon begins blinking, and the
Call Number increments.
• The Display shows the number of minutes and
seconds elapsed after the last signal was received.
After 59 minutes 59 seconds pass, the Display
changes to 01.00 and continues counting. After 59
hours 59 minutes pass, counting stops. When the
next signal is received, the time resets to 00.00 and
counting continues. Each time a new signal is
received, the time resets to 00.00.
• The Call Number records the number of calls
received to a maximum of 99.
• The alarm tone can be changed if you prefer
{page 87}.
5 When the "bell" icon is blinking, exit Tone Alert by
pressing [PTT].
Note:
► APO turns OFF the power if no key entry is made for 24 hours
even if Tone Alert is ON.
► If Tone Alert is ON, there is no speaker output except the alarm
tone when a signal is received.
► For Tone Alert to function correctly with CTCSS, the incoming
signal must be present for approximately i second.
► Tone Alert cannot be used simultaneously with Message
Playback Control via DTSS {page 77}. Although both functions
can be turned ON at the same time, Message Playback Control
will not function.
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