General Research of Electronics Inc 2000526 Manual Do Utilizador

 

51

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 ENTER 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  18. For 

information on programming memory channels  for CTCSS or DCS operation, see 

“Programming channels for CTCSS and DCS operation” on Page 42. 

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 61.) 

1.  Press PGM. 

2.  Use the number keys and press PGM to select the channel with the frequency you 

want to delete, or use the 

π

 or 

θ

 keys to navigate to the desired channel. 

3.  Press FUNC, then CLR. The frequency is cleared, 0.0000 appears in the display.