37
There are two ways you can 
program your scanner to operate 
with CTCSS. If you know the 
CTCSS code that is used on a 
particular frequency, you can 
manually enter the code when you 
are programming the scanner, or 
any time afterwards.
You can also set a special search 
code up that will instantly decode 
the CTCSS code on a received 
transmission. Channels 
programmed with the search code 
will receive all traffic on the 
channel, and will instantly decode 
and display any CTCSS code that 
is found with the transmission. 
You can then store the found code 
in the channel memory with one 
keystroke.
Programming a Quiet 
Code into a Channel
1. Select the channel you want 
to program the quiet code.Ô
2. Press 
FUNC, and then press 
<. 
Set Tone Code appears.
3. Press 
^ 
or v to select quiet 
code (frequency). See the 
“Quiet Code Chart” on 
Page 37.
4. Press 
ENT to set the quiet 
code.
Quiet Code Chart
Ô NOTES Ô 
• If you want to 
program a quiet code
into a car number 
frequency, you can 
select the car number
frequency.
• The scanner might 
detect an adjoining 
quiet code and 
sometimes receive 
the frequency.
Code Frequency (Hz) Code Frequency (Hz)
00 SRCH 20 131.8
01 67.0 21 136.5
02 71.9 22 141.3
03 74.4 23 146.2
20-515Change01_04.fm  Page 37  Friday, January 16, 2004  1:14 PM