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Page 105FT
DX
1200 OPERATING MANUAL
DATA (PSK) OPERATION
The
FT
DX
1200
has a capability of a 3S. decode function when the optional FFT unit is installed. You can easily syn-
chroni]e by aligning the marker on the $F-FFT screen display, together with the decode screen while receiving a signal.
'ecoding with this transceiver supports both general B3S. and Q3S. that have error correction functions.
PSK DECODE
(
WITH OPTIONAL FFT UNIT
)
1. 3ress the
[
MODE
]
switch, set the operating mode to
DATA USB
”.
ADVICE:
3ress and hold the
[
MODE
]
switch for approxi-
mately one second to switch back and forth between
DATA USB
” and “
DATA LSB
”.
. When you have con¿gured 0enu item “
069 DATA
MODE
” to “
PSK
”, and “
194 PSK MODE
” to “
BPSK
or “
QPSK
”.
3. 5eceive a 3S. signal, and press and hold the
[
SCOPE
]
switch for one second or longer.
The 3S. '(C2'( screen displays, and the decoded
text is displayed on the screen.
A
DVICE:
$lign the peak of the received signal with the marker
of the $F-FFT screen.
If text is displayed due to noise and band clutter,
when a 3S. signal is not being received, turn the
[
VFO-B/CLAR
]
knob to adjust and threshold level.
Threshold Level Adjustment
Scrambled text may be displayed due to noise and band clutter, when a signal is not being received. You can ad-
just the threshold level so scrambled text is not displayed.
Turn the
[
VFO-B/CLAR
]
knob, and adjust the
threshold level between 0 and 100) so scrambled
text is not displayed due to noise.
1ote that text will no longer be displayed for
weak signals if you increase the level too much.
You switch between threshold level display and
normal display each time you press the
[
SE-
LECT
]
button.
The threshold level is displayed in the TFT dis-
play.
NOTE:
Cross talk, noise, phasing, and the like may prevent
reliable decoding of the message.
You can set the data output level of data communica-
tions 3S.31, SSTV, etc.) using 0enu item “
078
DATA OUT LEVEL
”.
If continuously sending for more than a few minutes
or if sending time is longer than receiving time, re-
duce the transmit power output to between 1 and
13 using 0enu item “
177 TX MAX POWER
”.
To cancel the 3S. decode function, press and hold the
[
SCOPE
]
switch again for one second or longer.
Displays the decoded PSK
signal.
Displays content written to
the PSK text memory
ɦ
ɦ
If you transmit content written to the PSK text memory
(page 106), the transmitted PSK signal is displayed as
text.
Note that transmitted text is displayed in white.
#(((6
%3 %3 %3 &'
9
:
&%
%3 %3 %3 & ,#'Ჹ
25-
&'%1&'
AF-FFT display (see page 40)
(“Spectrum” or “Waterfall” display)
Threshold level
107


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  • Green Light on VFO A and MEM is flashing and no audio. Even tried Factory Reset and still flashing. How do I fix this? Submitted on 6-12-2022 at 07:37

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