TC-446S Owner
’s Manual
16
consult your dealer.
3. To exit the scanning process, you may
Press the
Scan
key again; or
Switch to a channel where the auto scan feature is not enabled;
Turn the radio off.
Note:
You can enable or disable the following alert tones: scan start alert and scan exit alert.
During scanning, the following function keys, if programmed, are available: PTT, .Squelch Off,
Squelch Off Momentary, Monitor and Monitor Momentary.
VOX
This feature allows you to transmit the voice with no need to press
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 earpiece is plugged into the accessory jack, do not switch the
PTT/VOX Switch
from
PTT to VOX directly if it is set to PTT; 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.
You can select an appropriate VOX sensitivity according to the operating environment. If VOX
is activated under heavy noise, continuously transmission may occur.
