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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