Advanced Features; Ctcss (Continuous Tone Coded Squelch System); Dcs (Digital Coded Squelch); Dcs/Ctcss Scan Operation - Uniden uh078sx Operating Manual

ADVANCED FEATURES

CTCSS (Continuous Tone Coded Squelch System)

This feature allows you to receive signals only from callers who have selected
the same CTCSS code.
Press or to select the channel you want to set a CTCSS code.
Press and hold . CTCSS will flash.
Press or to select a desired CTCSS code.
Press and hold to store setting. When a code other than oF is selected,
CTCSS and code will display.
DCS (Digitally Coded Squelch)
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.
Follow the steps for setting a CTCSS code.
Press until the DCS codes appear.
Press and hold to store setting. DCS and code
will display.
Channels 5 and 35 are used for emergency channels. CTCSS and
DCS will not operate on these channels.

DCS/CTCSS Scan Operation

1. Press to start scanning (GS or OS) mode.
2. Press and hold
3. When a signal is sensed on a DCS/CTCSS CH, the uh078sx stops for about 400
msecs (decode time) to decode the DCS/CTCSS code. If there is no code or the
receive code does not match the one programmed for the channel, the uh078sx
resumes scanning.
Channels 5 and 35 are used for emergency channels. DCS/CTCSS
will not operate on these channels.

VOX

Built-in Voice Activated Circuit
transmit automatically by speaking on the microphone of the VOX headset
(not supplied) without pressing the PTT switch.
to change to DCS/CTCSS scan mode.
(VOX) feature enables the user to
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