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More updates for v1.9.0 User Guide.

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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8525 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
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Joe Taylor 2018-02-22 15:55:07 +00:00
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commit 467a5c0979
3 changed files with 14 additions and 6 deletions
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9
doc/user_guide/en/decoder_notes.adoc
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@ -1,9 +1,10 @@
=== AP Decoding === AP Decoding
The _WSJT-X_ decoders for QRA64 and FT8 include optional procedures The _WSJT-X_ decoders for JT65, QRA64, and FT8 include optional
that use naturally accumulating information during a minimal QSO. procedures that use naturally accumulating information during a
This _a priori_ (AP) information increases sensitivity of the decoder minimal QSO. This _a priori_ (AP) information increases sensitivity
by up to 4 dB, at the cost of a slightly higher rate of false decodes. of the decoder by up to 4 dB, at the cost of a slightly higher rate of
false decodes.
For example: when you decide to answer a CQ, you already know your own For example: when you decide to answer a CQ, you already know your own
callsign and that of your potential QSO partner. The software callsign and that of your potential QSO partner. The software

2
doc/user_guide/en/new_features.adoc
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@ -9,6 +9,8 @@ situations
- Decoding improvements for JT65 mode, including _a priori_ (AP) - Decoding improvements for JT65 mode, including _a priori_ (AP)
decoding when VHF/UHF/Microwave features are enabled decoding when VHF/UHF/Microwave features are enabled
- Optional Auto-Sequencing in JT4, JT9, and JT65 when VHF/UHF/Microwave features are enabled
- Better suppression of low-confidence false decodes generated by AP - Better suppression of low-confidence false decodes generated by AP
decoding in FT8 mode decoding in FT8 mode

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doc/user_guide/en/vhf-features.adoc
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@ -8,6 +8,8 @@ signals
- *JT9* fast modes, useful for scatter propagation on VHF bands - *JT9* fast modes, useful for scatter propagation on VHF bands
- *JT65*, widely used for EME on VHF and higher bands
- *QRA64*, a mode for EME using a "`Q-ary Repeat Accumulate`" code, - *QRA64*, a mode for EME using a "`Q-ary Repeat Accumulate`" code,
a low-density parity-check (LDPC) code using a 64-character symbol a low-density parity-check (LDPC) code using a 64-character symbol
alphabet alphabet
@ -24,6 +26,8 @@ propagation
- *Doppler tracking*, which becomes increasingly important for EME - *Doppler tracking*, which becomes increasingly important for EME
on bands above 1.2 GHz. on bands above 1.2 GHz.
- Optional *Auto-Sequencing* in JT4, JT9, and JT65 as well as FT8 and QRA64.
[[VHF_SETUP]] [[VHF_SETUP]]
=== VHF Setup === VHF Setup
@ -164,8 +168,9 @@ shorthand messages for RO, RRR, and 73. These messages are always
enabled for reception; they will be automatically generated for enabled for reception; they will be automatically generated for
transmission if you check the shorthand message box *Sh*. transmission if you check the shorthand message box *Sh*.
Be sure to check *Deep* on the *Decode* menu; you may optionally *Deep* on the *Decode* menu will be automatically selected. You may
include *Enable averaging* and *Deep search*. optionally include *Enable averaging*, *Enable Deep search*, and
*Enable AP*.
The following screen shot shows three transmissions from a 144 MHz EME The following screen shot shows three transmissions from a 144 MHz EME
QSO using submode JT65B and shorthand messages. Take note of the QSO using submode JT65B and shorthand messages. Take note of the