Zartek ZA-711 User Manual - page 13
AUXILIARY FUNCTIONS
The functions below can be programmed in software. Some of the
functions have been switched off before leaving the factory and may need
to be programmed if required.
Battery Save Function
The Battery Save function decreases the amount of power used when a
signal is not being received and no operations are being performed (no
keys are being pressed, and no switches are being turned). While the
channel is not busy and no operation is performed for 12 seconds, Battery
Save turns ON. When a signal is received or an operation is performed,
Battery Save turns OFF.
Factory programmed on Save On
Beep Tone
A beep tone is sounded when the radio is switched on or the side buttons
presses to activate / deactivate function. If the beep tone is unselected
there will be no beep when switching on or pressing side keys.
Factory programmed on Beep enabled
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.
Level 0 will disable the squelch function and the radio will receive all
background noise on that frequency at all times. You can set up the
appropriate squelch level via software according to the current
communication environment and requirements.
Factory programmed on Squelch level 5
Squelch Level Checking
Either side key can be programmed to enable this function. When you
press the side key to check the squelch level, the radio will indicate the
level 1-9. There will be no indication if the squelch is at level 0 as it is
disabled.
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 time level: OFF, 30s, 60s, 90s …… 300s
Factory programmed on TOT 90s
Tones
Some channels may have pre-programmed CTCSS/QT/DQT tones. A
CTCSS/QT/DQT tone is a sub-audible tone which allows you to ignore
(not hear) calls from other parties who are using the same channel. When
you receive a signal that has a tone different from the one set up in your
transceiver, you will not hear the signal. Likewise, signals that you
transmit will only be heard by parties whose CTCSS/QT/DQT tone
matches the tone set up in your transceiver. There 50 QT standard
CTCSS tones and 104 DQT which can be selected per channel.
Note: Although using channels set up with CTCSS/QT/DQT tones
relieves you from listening to unwanted calls; it does not mean your calls