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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
discussion). In the case of CTCSS, "T SQ" 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 and hold in the [MHz(SET)] key for one second to lock in that tone/code and
exit to normal operation.
R.F. Says: 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) signal from the other station during Tone Scanning when
Set Mode Item "54 TS MUT" is set to "OFF." See page ?? for details. You can also
change the Tone Search scanning speed, using Set Mode Item "55 TS SPD." See page ??
for details.
Tone Scanning works either in the VFO or Memory modes.
EPCS (Enhanced Paging & Code Squelch) Operation
The FT-2900M includes an Enhanced CTCSS tone encoder/decoder and a dedicated
microprocessor providing paging and selective calling features. This allows you to place
a call to a specific station (Paging), and to receive calls of your choice directed only to
you (Code Squelch).
The paging and code squelch systems use two pairs of (alternately switched) CTCSS
20
FCC ID:K6620393X50
IC: 511B-20393X50
Operating Manual
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