CTCSS & DCS
(Continuous Tone Coded Squelch System)
&
(Digital Coded Squelch)
CTCSS
is a feature that allows a group to talk to each other
without hearing other users on the same channel.
1. Press
select/
key momentarily to enter CTCSS
mode. The current selected CTCSS tone flashes.
2. Press key to select the required CTCSS
tone (OFF or 1-38).
3. Press
select/
key six times to confirm the
selected setting and exit to standby mode.
For channels with a CTCSS tone setting, the CTCSS tone is displayed below
the channel indicator. For channels with the setting of CTCSS OFF, there will
be no display below the channel indicator.
DCS
DCS is a digital extension of CTCSS. It provides 104 extra, digitally
coded, squelch codes that follow after the 38 CTCSS codes. CTCSS 1-
38, followed by DCS 1-99 plus DCS 100-104 (represented by o0-o4 on
the display).
1. Press
select/
key momentarily to enter CTCSS/DCS mode.
2. Use key to select a DCS code. The DCS codes
follow on after the CTCSS codes. The DCS icon will
replace the CTCSS code on the display.
3. Press
select/
key six times to confirm the
selected setting and exit to standby mode.
The DCS icon will appear when selected. To turn
off DCS select CTCSS OFF and no display will show
below the channel indicator.
Channels 05 and 35 are used for emergency channels.
CTCSS and DCS will not operate on these two channels.
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