PROFESSIONAL TWO-WAY RADIO
19
Sub-tones:
The CTC/DCS DEC column shows the
sub tone assigned for each frequency.
There are 50 QT (CTCSS quiet tones)
and 104 DQT (digital quiet tones that
can be selected. This effectively gives
the user 2002 ((8+5)x(50+104))
channels to communicate on. These
tones are used to privatise
conversations and reduce interference
from other users on the same
frequency. There are 38 CTCSS
standard tones (1-38) plus 12 extra
QT tones and 104 digital codes. The
38 tones are common on other 446 &
464MHz radios such as the Zartek
Pro8 or Pro5. If the tone is left “OFF”,
the frequency is left “open” to receive
communication from any tone, but
your transmitter will not be decoded by
a radio with a tone.
PROFESSIONAL TWO-WAY RADIO
20
PROGRAMMABLE SIDE KEYS
You can program specific functions for SK1 & SK2 keys via
software. Press the key to activate/deactivate the function. A
single beep sound “di” will indicate that the function is active and
a double beep sound “di di “will indicate that the function is
deactivated.
The functions can be programmed as follows:
No. Items
Remarks
1 OFF No function
The radio will monitor all activity on the
frequency and accept week or coded
(QT/DQT) signals. SK1 is Factory
programmed on Monitor Momentary
3 Scan Start Scan.
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. SK2 is Factory programmed on
VOX, sensitivity level 7 of 9 with a delay
of 1.5 seconds.
Indicates the level of charge remaining
in the battery.
Sends a loud 3 second ring tone to alert
other radios. SK1 is Factory
programmed on Call Ring, Hold in to
activate.
Sends a very loud continuous
emergency siren to alert other radios.
8 Channel
Announcement
Code (Hz) Code (Hz
)
1 67.0 20 131.8
2 71.9 21 136.5
3 74.4 22 141.3
4 77.0 23 146.2
5 79.7 24 151.4
6 82.5 25 156.7
7 85.4 26 162.2
8 88.5 27 167.9
9 91.5 28 173.8
10 94.8 29 179.9
11 97.4 30 186.2
12 100.0 31 192.8
15 103.5 32 203.5
14 107.2 33 210.7
15 110.9 34 218.1
16 114.8 35 225.7
17 118.8 36 233.6
18 123.0 37 241.8
19 127.3 38 250.3
Table of 38 quiet tones
2 Monitor Momentary
4 VOX
5 Show Battery
6 Call Ring
7 Emergency Alert
Announces the channel number.
Summary of Contents for ZA-758
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