Zartek ZA-758 User Manual - page 16
PROFESSIONAL TWO-WAY RADIO
25
Scan Add/Delete
You can add a channel to the scan group or delete it from group.
Add choose Yes in the channel row under the Scan Add column
to add the channel.
Del choose No in the channel row under the Scan Add column to
remove the channel.
Password Protecting Programming
The programming of the radio can be protected using a 6 digit
software password. Once a password is programmed and written
to a radio, the user must enter the password in the software
before being able to read the radio. If the password is forgotten,
you must contact your dealer to reset it. It is still possible to
overwrite the programming as normal as no password is required
when writing only when reading.
Monitor Momentary
The squelch circuit on the transceiver mutes the speaker
automatically, when no signals are present. So you will not hear
background noise. Press the Monitor key to deactivate the
squelch manually. This is useful when you want to adjust the
volume level, or when you need to hear a weak signal. Monitor
Momentary will remove squelch so all background noise will be
heard and all tones (QT/DQT) accepted on the same frequency.
The LED indicator lights green while the radio is in Monitor mode.
SK1 is Factory programmed on Monitor Momentary
VOX (Voice-operated Transmission)
The ZA-758 has innovative state-of-the-art technology not seen
in other two-way radios with its 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
PROFESSIONAL TWO-WAY RADIO
26
begin transmitting when a noise or voice is heard. Ensure that
you speak directly into the microphone of the radio at a distance
of less than 5cm. There are many headset options (see optional
accessories below) which can be used in VOX mode allowing for
full hands-free communication.
VOX level
The 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. 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.
VOX Delay time
Once the radio senses a voice and begins transmitting it is
possible that the volume of the voice is lowered or there are
pauses in the message which may cause the radio to stop
sending. A VOX Delay time (0.5-3S) will keep the microphone
active for the set time before returning to receiving mode. This
delay time can be chosen to suit your style of speaking and avoid
the message breaking up.
SK2 is Factory programmed on VOX, sensitivity level 7 of 9 with a
delay of 1.5 seconds.
Battery Capacity Indication
Either side key can be programmed to enable this function. The
remaining charge on the battery will be voice indicated using a
number 1-4. This is useful in determining when to charge the
radio.
4 – Half to Full
100-40% (3.7-4.2V)
3 – Medium
39-30% (3.6V)