User's Manual

20-496 Owner’s Manual Draft Page 32/78
You can monitor a single channel with your scanner by navigating to that channel while in manual mode.
The scanner will receive traffic on the selected frequency.
Using CTCSS and DCS
Your scanner’s advanced, DSP based CTCSS and DCS decoder allows you to listen only to the group that
is of interest to you by specifying the group’s specific CTCSS or DCS code for a certain frequency. CTCSS
and DCS can also help reduce instances where interfering signals cause your scanner to stop on one
channel.
When your scanner stops on a conventional frequency that is configured for CTCSS or DCS, it checks for a
match between the transmitted CTCSS or DCS code and the code that is stored with the 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 scan operation. If the special “search”
code is in use, the scanner will instantly display any detected CTCSS code if programmed for CTCSS
mode, or DCS code if programmed for DCS code. You can store the detected code into the channel
memory by pressing ENT while the code is displayed.
For more information about your scanner’s receive modes, including CTCSS and DCS, see
“Understanding Your Scanner’s Channel Receive Modes” on Page XX. For information on programming
memory channels for CTCSS or DCS operation, see “Programming channels for CTCSS and DCS
operation” on Page XX.
Deleting Frequencies from Channels
In certain circumstances you may wish to completely clear the contents of a channel. One example would
be to create empty channels in a selected channel storage bank so the frequency copy function has empty
channels available for copied frequencies. (See “Copying a Frequency into a Vacant Channel in a Specified
Bank” on Page XX.)
1. Press PROG.
2. Use the number keys and press PROG to select the channel with the frequency you want to delete, or
use the ^ or v keys to navigate to the desired channel.
3. Press FUNC, and then CLEAR. The frequency is cleared, 0.0000 appears in the display.
SEARCHING AND TUNING
Finding and Storing Active Frequencies
You can search for transmissions using the scanner’s preprogrammed search banks. The search banks
include six preprogrammed search ranges, SR0 to SR5. You can change the search range of Bank SR6