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Add FST4 to AP decoding section of docs.

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Steven Franke 2021-02-16 08:58:52 -06:00
parent 406cb314d7
commit 2b10e6fce6
1 changed files with 9 additions and 5 deletions
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14
doc/user_guide/en/decoder_notes.adoc
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@ -2,12 +2,12 @@
=== AP Decoding
The _WSJT-X_ decoders for FT4, FT8, JT65, QRA64, include
The _WSJT-X_ decoders for FST4, FT4, FT8, JT65, and QRA64 include
procedures that use naturally accumulating information during a
minimal QSO. This _a priori_ (AP) information increases sensitivity
of the decoder by up to 4 dB, at the cost of a slightly higher rate of
false decodes. AP is optional in FT8, JT65, and QRA64, but is always
enabled for FT4.
enabled for FT4 and FST4 when decode depth is Normal or Deep.
For example: when you decide to answer a CQ, you already know your own
callsign and that of your potential QSO partner. The software
@ -27,7 +27,7 @@ example, `a2` indicates that the successful decode used MyCall as
hypothetically known information.
[[FT8_AP_INFO_TABLE]]
.FT4 and FT8 AP information types
.FST4, FT4, and FT8 AP information types
[width="35%",cols="h10,<m20",frame=topbot,options="header"]
|===============================================
|aP | Message components
@ -47,7 +47,9 @@ forwarded to {pskreporter}.
Table 2 lists the six possible QSO states that are tracked by the
_WSJT-X_ auto-sequencer, along with the type of AP decoding that would
be attempted in each state.
be attempted in each state in FT4 or FT8. The FST4 table (not shown)
is the same except that it omits the decoding attempts for AP types
4 and 5 to save time.
[[FT8_AP_DECODING_TYPES_TABLE]]
.FT4 and FT8 AP decoding types for each QSO state
@ -109,13 +111,15 @@ summarized in the following Table:
[width="50%",cols="h,3*^",frame=topbot,options="header"]
|===========================================
|Mode |Mode character|Sync character|End of line information
|FST4 | ` | | ? &#160; aP
|FT4 | ~ | | ? &#160; aP
|FT8 | ~ | | ? &#160; aP
|JT4 | $ | *, # | f, fN, dCN
|JT9 | @ | |
|JT65 | # | |
|JT65 VHF| # | *, # | f, fN, dCN
|QRA64 | : | * | R
|QRA64 | : | * | R:w
|ISCAT | | * | M N C T
|MSK144 | & | |
|===========================================