Tone Search Scanning - Yaesu FT-2980E Operating Manual

CTCSS/DCS/EPCS Operation

Tone Search Scanning

In operating situations where you don't know the CTCSS tone or DCS code being used
by another station or stations, you can command the radio to listen to the incoming signal
and scan in search of the tone being used. Two things must be remembered in this regard:
 You must be sure that your repeater uses the same tone type (CTCSS vs. DCS).
 Some repeaters do not pass the CTCSS tone or DCS code; you may have to listen
to the station(s) transmitting on the repeater uplink (input) frequency in order to allow
Tone Search Scanning to work.
To scan for the tone in use:
1. Set the radio up for either CTCSS or DCS Decoder operation (see the previous dis-
cussion). In the case of CTCSS, " TSQ " will appear on the display; in the case of DCS,
" DCS " will appear on the display.
2. Press the Microphone's [ P3 ] key momentarily to start
scanning for the incoming CTCSS or DCS tone/code.
3. When the radio detects the correct tone or code, it will
halt on that tone/code, and audio will be allowed to
pass.
4. Press the Microphone's [ P3 ] key momentarily to lock in
that tone/code and exit to normal operation.
If the Tone Scan feature does not detect a tone or code, it will continue to
scan indefinitely. When this happens, it may be that the other station is not
sending any tone. You can press the Microphone's [ P3 ] key to halt the scan at any
time.
You may listen to the (muted) signals from the other stations during Tone Scanning when
Set Mode Item "54 TS MUT" is set to "OFF". See page 71 for details. You can also
change the Tone Search scanning speed, using Set Mode Item "55 TS SPD". See page
71 for details.
Tone Scanning works either in the VFO or Memory mode.
24 FT-2980R/E Operating Manual