User's Manual

25
Background Operations
Time-Out-Timer (TOT)
Time-Out-Timer is used to prevent someone from using the same channel for a long time.
If the transmission exceeds the preset time (set by your dealer), transmission will be
inhibited and an alert tone will sound. To stop the alert tone, release the [PTT] key.
Your dealer can program a TOT Pre-Alert feature to alert you just before the TOT elapses.
Note：The maximum TOT time is 3 minutes.
Busy Channel Lockout (BCL) and Busy Tone Lockout (BTL)
When activated, the BCL and BTL feature will prevent you from talking on a channel that is
already in use. Press the [PTT] key while the channel is in use, the radio will generate an
alert tone and transmission will be inhibited. Release the [PTT] key to stop the alert tone.
■ Carrier:
The radio will not transmit when a carrier is detected.
■ CTCSS/DCS:
The radio will not transmit while detecting a carrier with wrong CTCSS/DCS code.
Alternately, the radio can transmit only when the received CTCSS/DCS code matches the
preset code on the selected channel.
■ Opt signalling:
The radio can transmit only when the received Opt Signalling code
(2-Tone/5-Tone/DTMF/HDC2400
TM
) matches the preset code on the selected channel.
Battery Save
The Battery Save feature is enabled by your dealer to minimize the power consumption.
When there is no activity on the channel and no operation (no key is being pressed, and
no switch is being turned) is performed for 12 seconds, Battery Save is automatically
activated. When a signal is received or an operation is performed, Battery Save is
automatically turned off.