TC-508 Owner’s Manual
16
You can scan the frequently used channel if the priority scan feature is enabled. When staying
on a non-priority channel, the radio will keep detecting activities on the priority channel. Once
any activity is detected, it will jump to the priority channel immediately. For more information,
please contact your dealer.
3. Methods to Exit Scanning
Press Scan key again, Or
Switch to a channel where Auto Scan feature is not enabled; Or
Turn the radio off.
Note:
The Scan Start Alert and the Scan End Alert can be enabled / disabled by the dealer.
During scanning, the radio will still respond to operation of pressing the following keys: PTT key,
Squelch Off key, Squelch Off Momentary key, Monitor and Monitor Momentary keys.
VOX
This feature allows you to transmit your voice with no need to press the PTT. However, you must employ
a dedicated earpiece to realize this function.
Operation:
1. Set the PTT/VOX Switch on the earpiece to VOX;
2. Plug the earpiece into the accessory jack;
3. Press the programmed VOX key to activate this function.
4. Speak into the microphone (on the earpiece) to transmit your voice, and transmission will stop
automatically when you stop talking;
5. Power the radio off or press the VOX key again to deactivate this function.
Note:
If the PTT/VOX Switch on the earpiece is set to PTT, you can only transmit by pressing the
external PTT, no matter whether VOX is activated.
When the PTT/VOX Switch is set to PTT, you are not allowed to switch it from PTT to VOX
directly; otherwise, continuous transmission may occur. If continuous transmission occurs
unexpectedly, you can restore the radio to normal operation by toggling the switch from VOX to
PTT, or turning the radio off and back on.
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