User's Manual

23
Background Operations
Time-out Timer (TOT)
The feature allows for more efficient use of channels by limiting the maximum time of each
transmission. Once a continuous transmission exceeds the preset time (programmable by
your dealer), the transmission is automatically terminated and alert tone is heard. Release
the PTT to cancel the alert tone.
Your dealer may program the alert tone sounds before the TOT timer nearly expires.
Busy Channel Lockout (BCL)
When the BCL feature is enabled, you are prevented from transmitting on a channel that
is already in use. Press the PTT on a channel that is already in use, the radio will sound
alert tone and turn back to the receive mode.
Carrier: If BCL is set on the current channel, press the PTT while the channel is already in
use, the radio will sound beeps.
CTCSS/CDCSS: If CTCSS/CDCSS and BCL are set on the current channel, press the
PTT while the channel is already in use, the radio will sound beeps without
transmission.
Optional Signalling: If 2-Tone/HDC1200/HDC2400
TM
signalling and BCL are set on the
current channel, press the PTT while the channel is already in use, the radio will
sound beeps without transmission.
Battery Save
When enabled, the Battery Save feature is automatically activated once the situation that
no activity on the channel and no operation performed, lasts for 12 seconds.
Pressing any key or receiving a signal will restore the radio to normal operation and exit
from Battery Save.
Low Battery Alert
For extra convenience, the red LED flashes and the radio emits three beeps at every 30
seconds, to alert the user to recharge the battery should the battery level run low.
Safety Check
Once radio receives a safety check signal, an alert tone sounds requesting the user to