mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-19 10:32:02 -05:00
52 lines
2.2 KiB
Plaintext
52 lines
2.2 KiB
Plaintext
image::settings-advanced.png[align="center",alt="Settings Advanced"]
|
|
|
|
_JT65 decoding parameters_
|
|
|
|
- *Random erasure patterns* logarithmically scales the number of
|
|
pseudo-random trials used by the Franke-Taylor JT65 decoder. Larger
|
|
numbers give slightly better sensitivity but take longer. For most
|
|
purposes a good setting is 6 or 7.
|
|
|
|
- *Aggressive decoding level* sets the threshold for acceptable
|
|
decodes using Deep Search. Higher numbers will display results
|
|
with lower confidence levels.
|
|
|
|
- Check *Two-pass decoding* to enable a second decoding pass after
|
|
signals producing first-pass decodes have been subtracted from the
|
|
received data stream.
|
|
|
|
_Miscellaneous_
|
|
|
|
- Set a positive number in *Degrade S/N of .wav file* to add known
|
|
amounts of pseudo-random noise to data read from a .wav file. To
|
|
ensure that the resulting S/N degradation is close to the requested
|
|
number of dB, set *Receiver bandwidth* to your best estimate of the
|
|
receiver's effective noise bandwidth.
|
|
|
|
- Set *Tx delay* to a number larger than the default 0.2 s to create
|
|
a larger delay between execution of a command to enable PTT and onset
|
|
of Tx audio.
|
|
|
|
IMPORTANT: For the health of your T/R relays and external
|
|
preamplifier, we strongly recommend using a hardware sequencer and
|
|
testing to make sure that sequencing is correct.
|
|
|
|
- Check *x 2 Tone spacing* or *x 4 Tone spacing* to generate Tx audio
|
|
with twice or four times the normal tone spacing. This feature is
|
|
intended for use with specialized LF/MF transmitters that divide
|
|
generated frequencies by 2 or 4 as part of the transmission process.
|
|
|
|
_Special Operating Activity: Generation of FT8 and MSk144 messages_
|
|
|
|
- Check this box and select the type of activity to enable
|
|
auto-generation of special message formats for contesting and
|
|
DXpeditions. For *ARRL Field Day*, enter your operating Class and
|
|
ARRL/RAC section; for *ARRL RTTY Roundup*, enter your state or province.
|
|
Use “DX” for section or state if you are not in the US or Canada. In
|
|
the RTTY Roundup, Stations in Alaska and Hawaii should enter “DX”.
|
|
|
|
- Check *Fox* if you are a DXpedition station operating in FT8
|
|
DXpedition Mode. Check *Hound* if you wish to make QSOs with such a
|
|
Fox. Be sure to read the operating instructions for {ft8_DXped}.
|
|
|