Igor, This is likely due to the very strong burst of interference at about 21 s into the file. It looks like a chirpsounder swept through the band at that time. This interference is about 40 dB larger than the noise floor. The 1-bit correlation will be relatively immune to this spike, whereas the full correlation will be strongly influenced by it.
Steve > On Nov 14, 2015, at 6:54 AM, Игорь Ч <c_i...@inbox.ru> wrote: > > Hi Joe, Steve and all, > > There is audio file where JT65 weak signals are handled better by r6058 than > by r6080 and I can not explain why is it happen: > > r6058: > > 0706 -23 0.6 2493 @ CQ PA3GUK JO32 > > 0706 -7 1.0 280 # CQ R9HAW NO26 > > 0706 -23 1.7 1087 # JH8JNF F5GPE 73 > > 0706 -25 1.2 1499 # CQ UA3LHA KO64 > > 0706 -2 0.9 2124 # SP2CDN YO8SEP -06 > > _____________________________ > r6080: > > 0706 -23 0.6 2493 @ CQ PA3GUK JO32 > > 0706 -7 1.0 280 # CQ R9HAW NO26 > > 0706 -2 0.9 2124 # SP2CDN YO8SEP -06 > > __________________________________ > > File is recorded from DDS SDR ANAN-10, AGC is OFF, digital audio stream to > CPU. > > The same WSJT-X ini file is used. Random erasure pattern set to 8, two pass > enabled, agressive decoding level set to 5. > > May it be DT values range for weak signals that is handled differently by two > mentioned releases? > > I have put audio file there: https://cloud.mail.ru/public/Hhpj/EgLDYNPK4 > > > 73, > > Igor UA3DJY > ------------------------------------------------------------------------------ > _______________________________________________ > wsjt-devel mailing list > wsjt-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wsjt-devel ------------------------------------------------------------------------------ _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
