mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-01 16:13:57 -04:00
af74f94b76
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7344 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
48 lines
1.8 KiB
Plaintext
48 lines
1.8 KiB
Plaintext
=== Decoded Lines
|
|
|
|
Displayed information accompanying decoded messages generally includes UTC,
|
|
signal-to-noise ratio in dB, time offset DT in seconds, and
|
|
audio frequency in Hz. Some modes include additional information such
|
|
as frequency offset from nominal (DF), frequency drift (Drift or F1),
|
|
or distance (km or mi).
|
|
|
|
There may also be some cryptic characters with special meanings
|
|
summarized in the following Table:
|
|
|
|
[[DECODED_LINES_TABLE]]
|
|
.Notations used on decoded text lines
|
|
[width="50%",cols="h,3*^",frame=topbot,options="header"]
|
|
|===========================================
|
|
|Mode |Mode character|Sync character|End of line information
|
|
|JT4 | $ | *, # | f, fN, dNC
|
|
|JT9 | @ | |
|
|
|JT65 | # | |
|
|
|JT65 VHF| # | *, # | f, fN, dNC
|
|
|QRA64 | : | * | R
|
|
|ISCAT | | * | M N C T
|
|
|MSK144 | & | | N
|
|
|===========================================
|
|
Sync character::
|
|
`*` - Normal sync +
|
|
`#` - Alternate sync
|
|
|
|
End of line information::
|
|
`C` - Confidence indicator [ISCAT and Deep Search; (0-9,*)] +
|
|
`d` - Deep Search algorithm +
|
|
`f` - Franke-Taylor or Fano algorithm +
|
|
`M` - Message length (characters) +
|
|
`N` - Number of Rx intervals or frames averaged +
|
|
`R` - Return code from QRA64 decoder +
|
|
`T` - Length of analyzed region (s)
|
|
|
|
=== Reference Spectrum
|
|
|
|
WSJT-X provides a tool that can be used to determine the detailed
|
|
shape of your receiver's passband. Disconnect your antenna or tune to
|
|
a quiet frequency with no signals. With WSJT-X running in one of the
|
|
slow modes, select *Measure reference spectrum* from the *File* menu.
|
|
Wait for about a minute and then hit the *Stop* button. A file named
|
|
`refspec.dat` should appear in your log directory.
|
|
|
|
[ ... more to come ...]
|