Squelch
The squelch level is used to adjust the threshold at which signals will open the audio
channel. A low level will allow weaker signals to be audible, although with more
background noise. However, if weak signals are annoying, the level can be adjusted
higher to open the channel only when stronger signals are received.
You can set up the squelch level from 0 to 9. The higher the squelch level, the less
noisy is the signal as only stronger signal are accepted. The lower the squelch level
the noisier the signal is, as weak signals are also allowed. As the communication
range or obstructions between radios increase, the weaker the signal becomes. It is
advised to use a lower squelch level to get further communication range.
Factory
programmed on Squelch level 5
Time-out Timer
The purpose of the Time-out Timer is to prevent any person jamming up a channel for
a long time whilst transmitting. If the time that you continuously transmit exceeds the
set Time-
out time, the transceiver will stop transmitting and a tone “beep” will sound.
To stop the tone, release the PTT switch. You can press the PTT switch again to
resume transmitting.
Note:
you can set up the tim
e level: 15s, 30s, 60s, 90s …… 300s
Factory programmed on TOT 180s
VOX (Voice-operated Transmission)
The ZA-723 has a multi-level sensitivity built-in VOX function. You can enjoy talking
and listening without pressing PTT key as transmit is automatically activated by
sound. This turns your radio into hands-
free “walk & talk” when used with a headset.
Voice activation is used to operate the radio in hands-free mode or as a noise / baby
monitor. The radio will begin transmitting when a noise or voice is heard. There are
many headset options (see optional accessories below) which can be used in VOX
mode allowing for full hands-free communication.
Note that VOX can be only activated in software.
VOX level and delay
Sensitivity level of the microphone can be adjusted to allow different volumes of
sounds to make the radio begin and remain transmitting. There are 1 - 9 levels with 9
being the highest and most sensitive
to lower volumes of sound. If the radio is
used in a very noisy environment it is recommended to use a low sensitivity level to
avoid the radio transmitting unnecessarily, such as 2. At low sensitivity level it will be
required to speak loudly into the microphone to activate the radio. At high sensitivity, a
soft voice is all that is required which enable the radio to be placed at a further
distance from the noise source (typically 30cm max).
