Forwarded without wav file attachment and embedded screen shot to reduce size,
if anyone would like those drop me an email direct
From: mailto:wsjt_ss_is...@yahoogroups.com
Sent: Monday, June 29, 2015 10:44 AM
To: wsjt_ss_is...@yahoogroups.com ; K1JT
Subject: Re: [WSJT_SS_ISCAT] "RRR" bug fixed
Good morning Joe,
I just completed integrating my changes and have committed them as Rev 5637.
Part of the integration process was modifying the version of ISCAT.f90 to
encompass both mine and your changes, your change was very close to what I was
doing do the changes I had to make were mostly cosmetic although I did move
writing all messages up to the wsjt.py level with a Setup check on when to do
it.
I have noticed an issue with decode of a strong non repetitive signal. The
attached wav is a TX2 from W3CP to myself that is pretty much full sequence and
very strong. As you will note, with one exception the decode is garbage.
The decoder and also my auto sequencer did find the right one but this seemed
odd based on the quality of the received signal.
To get this dump check Setup/Report All ISCAT Messages. If this is not
checked then just the ISCAT decoder selected messages is displayed.
Your thoughts appreciated,
73 de Bill ND0B
From: mailto:wsjt_ss_is...@yahoogroups.com
Sent: Saturday, June 27, 2015 12:49 PM
To: 'WSJT software development' ; wsjt_ss_is...@yahoogroups.com
Subject: [WSJT_SS_ISCAT] "RRR" bug fixed
Hi all,
I have found and corrected a problem that several have noticed in the
ISCAT decoder in WSJT. The bug was especially troublesome in messages
containing a single repeated character, such as the message "RRR".
The problem is fixed in the WSJT code repository as of revision 5634.
Bill (ND0B) should update his code branch accordingly, so that the
"ISCAT_SS" test version of WSJT will use the improved decoder.
Note: Up to now the ISCAT decoder has made its own decision about the
most reliable decoded message and displayed only that one. For testing,
at least, I have changed the logic so that if the "Sync" limit is set to
0, many decodes (based on different parts of the received signal) can be
displayed. With higher Sync settings only the best will be displayed,
as before.
This is a good time also for me to make a special request of all those
using ISCAT with Bill's recent program improvements. Further
improvements to the ISCAT decoder are possible. The necessary work will
be easier and the results more reliable if I have a good collection of
*.wav files containing real over-the-air ISCAT signals. The most useful
files will be ones where the signal is weak and barely decodable or "not
quite decodable".
If you are testing ISCAT and this is easy for you to do, please zip up a
collection of several such files and send them to me. Many thanks!
-- 73, Joe, K1JT
__._,_.___
--------------------------------------------------------------------------------
Posted by: "Bill Ockert - ND0B" <n...@ockert.us>
--------------------------------------------------------------------------------
Reply via web post • Reply to sender • Reply to group • Start a New
Topic • Messages in this topic (5)
Visit Your Group a.. New Members 29
• Privacy • Unsubscribe • Terms of Use
.
__,_._,___------------------------------------------------------------------------------
Monitor 25 network devices or servers for free with OpManager!
OpManager is web-based network management software that monitors
network devices and physical & virtual servers, alerts via email & sms
for fault. Monitor 25 devices for free with no restriction. Download now
http://ad.doubleclick.net/ddm/clk/292181274;119417398;o
_______________________________________________
wsjt-devel mailing list
wsjt-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/wsjt-devel
