6. CTCSS (Continues Tone Coded Squelch System):
Press the MENU button twice, the current CTCSS code will flash on the
display. Press the up▲ /down▼ button to change the 38 available codes.
Press the PTT button to confirm and return to stand-by mode. This license
free radio operates on the 476MHZ frequency band; the device has 80
available radio channels. If there are any device users near you, there is a
chance that some of the users are operating on the same radio channel. To
prevent you receiving signals from other users, sub-channels have been
integrated. When using CTCSS, a low frequency tone (between 67-250Hz)
will be transmitted along with the voice signal. There are 38 available
tones to choose form. You are free to choose one of the 38 available
sub-channels. Due to filtering, these sub-channels will generally not be
audible so they will note disturb the communication.
7. VOX (Hands free function):
Press the MENU button three times, the current VOX setting will flash on
the display and the VOX icon will display, Press UP▲ button to set the VOX
sensitivity level between 1 and 3 level (level 3 is the high sensitive level).
Press down ▼ button until “OF” appears on the display to turn VOX OFF.
Press the PTT button to confirm and return to stand-by mode. In VOX
mode, the radio will transmit a signal when it is activated by your voice or
other sound around you. VOX Operation is not recommended if you plan
to use your device in a noisy or windy environment.
Note:
VOX mode will be over ridden when you press the PTT button.
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