Some small update. "Bug" (from my perspective) was not introduced in wsjtx-2.1.0-rc5, but AFTER wsjtx-2.1.0-rc5 binary release.
Test described in the previous email was done in docker containers with specified versions installed inside. <Dockerfile> from ubuntu:18.04 ADD files /tmp ADD JT4 /JT4 RUN apt -y update && apt -y dist-upgrade && apt -y install /tmp/wsjtx_2.1.0-rc7_amd64.deb </Dockerfile> Yesterday evening I have built latest version of wsjtx from git and I reverted the commit 2044b736dad8444272d3dd5f89cf63716ccbf073. It did not help - so it seems it's more complicated than only this commit, but this is where my knowledge of Fortran ends;) śr., 26 mar 2025 o 22:39 Dawid SQ6EMM <sq6...@hamradio.pl> napisał(a): > Hey, for some time I have been playing a lot with JT4(g). > During those exercises it was identified that JT4(g) - I was only playing > with G is incorrectly reporting the SNR (meaning values are never stronger > than -13dB and there is no even indirect connection between signal > strength and JT4g report). > > I described that a little bit broader on wsjt users group here: > > https://wsjtx.groups.io/g/main/topic/111843701 > > But just to reach dev community and ask for fix I think its better here... > > So simple exercise (test files for JT4 - Charles G3WDG) and two versions > of wsjt: > > for i in *.wav; do echo $i; jt9 -4 -d 3 -b G -f 1000 $i ; done > > wsjtx-2.1.0-rc5: > 000000_0002.wav > 0002 -5 -0.1 1006 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0004.wav > 0004 -7 -0.1 1002 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0006.wav > 0006 -9 -0.1 1000 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0008.wav > 0008 -11 -0.1 1004 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0010.wav > 0010 -13 -0.1 995 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0012.wav > 0012 -15 -0.1 1000 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0014.wav > 0014 -17 -0.1 1004 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0016.wav > 0016 -20 -0.1 998 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0018.wav > 0018 -22 -0.0 995 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0020.wav > 0020 -24 -0.1 1000 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0022.wav > 0022 -26 -0.0 1000 $* > <DecodeFinished> 0 1 > > wsjtx-2.1.0-rc7: > 000000_0002.wav > 0002 -15 -0.1 1006 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0004.wav > 0004 -15 -0.1 1002 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0006.wav > 0006 -15 -0.1 1000 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0008.wav > 0008 -15 -0.1 1004 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0010.wav > 0010 -14 -0.1 995 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0012.wav > 0012 -15 -0.1 1000 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0014.wav > 0014 -15 -0.1 1004 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0016.wav > 0016 -16 -0.1 998 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0018.wav > 0018 -18 -0.0 995 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0020.wav > 0020 -17 -0.1 1000 $* CQ DL0SHF JO54 f > <DecodeFinished> 0 1 > 000000_0022.wav > 0022 -18 -0.0 1000 $* > <DecodeFinished> 0 1 > > > and additionally I guess the commit that was about to fix it - I guess > might be a reason why its not working correctly now: > > > commit 2044b736dad8444272d3dd5f89cf63716ccbf073 > Author: Joe Taylor <joe@...> > Date: Mon May 20 12:46:36 2019 -0400 > > Fix a bug in calculation of S/N in JT4 mode. > > > Thanks for your help in advance. > > -- > Dawid > >
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