Hi Tobias / Joe
I checked this, first I am very sorry for getting you to download almost
blank files, I selected the 2 minute quiet periods between my
transmissions by mistake. I now have deleted those.
Replaying the remaining three I get one that decodes and 2 that don't
the same as when rx'd live.
Joe K1JT what is your verdict on these JT9-2 files from my TX please.
73
Eddie
On 15/11/2012 15:57, g3zjo wrote:
Thanks Tobias
That is most interesting. there should be 3 that decoded fine and 2
that failed it seems that my human error selected 2 wrong files which
leaves 2 that should have been OK and the last one which shows 1.142
sec time shift which was a non decode.
There should be no timing problems at all unless they are introduced
within the software,my computer times are spot on and do not vary
during the short test periods, the fail always comes after 5,6, or 7
TX RX periods then remains. Hmm.
73 Eddie
On 15/11/2012 15:25, Tobias DG3LV wrote:
Hello Eddie !
Those files, that do not decode directly in WSJT-X, could be decoded
if replayed with a (round about) -1 second timeshift. Using the
"audacity"-program as a (time-shifted-) tone source WSJT-X (rev 2717)
did decode 1244, 1248, 1252 files correctly :
1340 10 18 -0.3 1408.93 0.00 G3ZJO TEST
(UTC is time of replay)
(Files 1246 and 1250 were almost "silence", i.e. no JT9 tones.)
The JT9-tones start at :
1244: 1.096 sec
1248: 1.080 sec
1252: 1.142 sec
after the begin of the file.
Maybe this helps locating the problem.
73 de dg3lv Tobias
Am 14.11.2012 14:36, schrieb g3zjo:
The usual happened to my local de-codes 6 or 7 transmit periods and
they
fail to de-code.
Transmitter drift is noted as less than 0.75Hz in a 4minute RX - TX
period. After 7 decodes they failed, I assume the drift becomes more
rapid than the tolerance level over time.
The files are, 3 before 2 after de-code fail :-
https://www.sugarsync.com/pf/D0881137_61669144_98927
https://www.sugarsync.com/pf/D0881137_61669144_98929
https://www.sugarsync.com/pf/D0881137_61669144_98921
https://www.sugarsync.com/pf/D0881137_61669144_98923
https://www.sugarsync.com/pf/D0881137_61669144_98066
Eddie
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No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.2221 / Virus Database: 2441/5395 - Release Date:
11/14/12
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No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.2221 / Virus Database: 2441/5395 - Release Date: 11/14/12
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