From 341f636232b1386d47553ed8f1d5bd37d6e14aee Mon Sep 17 00:00:00 2001 From: Joe Taylor Date: Tue, 22 Nov 2016 20:33:50 +0000 Subject: [PATCH] More editing of User Guide. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7335 ab8295b8-cf94-4d9e-aec4-7959e3be5d79 --- doc/user_guide/en/odds_and_ends.adoc | 2 +- doc/user_guide/en/vhf-features.adoc | 14 ++++++++------ lib/qra/qra64/qra64sim.f90 | 1 - 3 files changed, 9 insertions(+), 8 deletions(-) diff --git a/doc/user_guide/en/odds_and_ends.adoc b/doc/user_guide/en/odds_and_ends.adoc index 8d38d5006..6dc9447c6 100644 --- a/doc/user_guide/en/odds_and_ends.adoc +++ b/doc/user_guide/en/odds_and_ends.adoc @@ -32,7 +32,7 @@ End of line information:: `f` - Franke-Taylor or Fano algorithm + `M` - Message length (characters) + `N` - Number of Rx intervals or frames averaged + - `R` - QRA64 _a priori_ return code + + `R` - Amount of _a priori_ information used by decoder + `T` - Length of analyzed region (s) === Reference Spectrum diff --git a/doc/user_guide/en/vhf-features.adoc b/doc/user_guide/en/vhf-features.adoc index 996907be9..7c097f6ed 100644 --- a/doc/user_guide/en/vhf-features.adoc +++ b/doc/user_guide/en/vhf-features.adoc @@ -155,12 +155,14 @@ image::JT65B.png[align="center",alt="JT65B"] === QRA64 QRA64 is an experimental mode in the Version 1.7 alpha release of -_WSJT-X_. In most ways you will find operation of QRA64 similar to -JT65. The following screen shot shows an example of a QRA64C -transmission from DL7YC recorded at G3WDG over the EME path at 24 GHz, -at a time when Doppler spread on the path was 78 Hz. The red curve -with a peak at 967 Hz shows that the decoder has detected its -synchronizing symbols, and the decode is successful. +_WSJT-X_. The mode is designed especially for EME on VHF and higher +bands; operation is generally similar to JT65. The following screen +shot shows an example of a QRA64C transmission from DL7YC recorded at +G3WDG over the EME path at 24 GHz. Doppler spread on the path was 78 +Hz, so although the signal is reasonable strong its tones are +broadened enough to make them hardto see on the waterfall. The red +curve shows that the decoder has achieved synchronization with a +signal at about 970 Hz. image::QRA64.png[align="center",alt="QRA64"] diff --git a/lib/qra/qra64/qra64sim.f90 b/lib/qra/qra64/qra64sim.f90 index e65fa3cf9..b7ca2e130 100644 --- a/lib/qra/qra64/qra64sim.f90 +++ b/lib/qra/qra64/qra64sim.f90 @@ -27,7 +27,6 @@ program qra64sim call getarg(1,msg) call getarg(2,csubmode) mode64=2**(ichar(csubmode)-ichar('A')) - print*,csubmode,' ',mode64 call getarg(3,arg) read(arg,*) nsigs call getarg(4,arg)