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3.1.26 A/B squelch
This function is used to start squelch by detecting free-line signals.
1
2
Point the arrow at ON or OFF using the dial or UP/DOWN key, and then press
the
• Priority order in comparison with the Descrambler and CTCSS decoding
function
The A/B squelch cannot be used with the Descrambler or CTCSS decoding
function.
• If the A/B squelch is turned ON when the Descrambler is active, the A/B
squelch takes priority.
• If the Descrambler or A/B squelch is active, the CTCSS decoding function is
disabled.
• If the A/B squelch is turned ON when the CTCSS decoding function is active,
the CTCSS decoding function is canceled during its use.
54
Call up the A/B SQ SET screen.
Press the
the
the display.
The menu will appear. Point the
arrow at +SPECIAL using the dial or UP/DOWN key,
and then press the
The SPECIAL menu will appear. Point the arrow at +A/B
3
SQ SET and then press the
2
1
Select ON/OFF for A/B squelch.
TF
key (the initial setting is OFF).
ENT
ON
If modulation signals of 2300 Hz used for free-line signals are
detected, the squelch is activated and the sound is muted. If
those signals are no longer detected, the squelch is canceled.
OFF
The A/B squelch is disabled.
Note:
• This function may fail if radio or modulation signals are too weak or include
too many noises.
• It is not applicable to free-line signals of any frequency other than 2300 Hz.
F
key, and then press
SET
key with
shown on
HELP
TF
key.
ENT
A / B SQ SET
OF F
ON
TF
key.
ENT
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