Ats (Auto Tone Search) Operation - Yaesu FT-51R Owner's Manual

ATS (Auto Tone Search) Operation

If you hear signals which you suspect (or
know) are using CTCSS, but are unsure which
tone frequency is being used, you can activate
Automatic Tone Search to determine the fre-
quency of the tone(s). To enable ATS, press
and listen for the resulting beep(s). If
you hear one low-pitched beep, CTCSS scanning
is enabled. If you hear a high-low beep sequence,
TSETABC
press again while 0 is still displayed (or
TSETABC
else press
press the when done.
Once Auto Tone Search is enabled, you can acti-
vate it on the current channel frequency:
First activate CTCSS Tone Squench
TONE TONE
(Y
and
appears).
TSETABC
Press to display a CTCSS fre-
quency.
Hold or for
ning.
The scanning speed is rapid when no signal is
present, and slows to several tones/second
when a signal appears, as the signal is checked
for a CTCSS tone. When a matching tone is
if it is not). In either case,
(Y
again, if necessary, until
second to begin scan-
found, scanning stops, the decimal point blinks,
a high-low beep sounds and the display illumi-
nates (if enabled). The CTCSS tone in use now
appears on the display. Press the
ATS at this point with the CTCSS tone selected.
Otherwise, when the received carrier drops, ATS
resumes until another signal is received, or until
you press the to exit (no transmission oc-
PTT
curs).
to stop
PTT