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21
Beyond the Basics
using CTCSS and DCS
Your scanner’s advanced, DSP-based CTCSS and DCS,
decoder allows you to listen only to a frequency group that is
of interest to you. Simply specify the group’s specifi c CTCSS
or DCS code for a certain frequency. CTCSS and DCS can
also help reduce interfering signals that cause your scanner
to stop on one channel.
When your scanner stops on a conventional frequency that is
confi gured for CTCSS or DCS, it checks for a match between
the transmitted CTCSS or DCS code and the code stored in
channel memory. If the transmitted and stored codes match,
the scanner stops on the transmission and allows the audio
to pass to the speaker. If the codes do not match, the scanner
resumes scanning. If the special “search” code is in use,
the scanner instantly displays any detected CTCSS code if
programmed for CTCSS mode, or DCS code if programmed
for DCS code. You can store the detected code into channel
memory by pressing ENT while the code is displayed.
searching a preprogrammed frequency range
The scanner contains these preprogrammed search ranges,
stored in the search bank (SR0-SR6).
Bank Band
SR0 Marine
SR1 CB
SR2 FRS/GMRS/MURS
SR3 Police/Fire
SR4 Aircraft
SR5 Ham
SR6 Limit search (User confi gurable)
1. Repeatedly press SRCH to select a search bank.