Same FT8 mode.
Do you still see harmonics if you drop WSJT_X Pwr level to -0.4 or so?
Mike W9MDB
On Sunday, February 14, 2021, 02:54:19 PM CST, Andy Durbin
<a.dur...@msn.com> wrote:
"I used Spectrum Lab to examine my TS-590S TX monitor audio for WSJT-X
versions 1.9.1, 2.00, 2.2.1, and 2.3.0. All versions exhibit audio harmonics
but each is about 40dB below the wanted modulation."
Same test, same results, with 2.4.0-rc1. All tests with FT8. Was the reported
problem with a different mode?
Andy k3wyc
From: Andy Durbin
Sent: Sunday, February 14, 2021 1:23 PM
To: wsjt-devel@lists.sourceforge.net <wsjt-devel@lists.sourceforge.net>
Subject: Clipping I used Spectrum Lab to examine my TS-590S TX monitor audio
for WSJT-X versions 1.9.1, 2.00, 2.2.1, and 2.3.0. All versions exhibit audio
harmonics but each is about 40dB below the wanted modulation.
There is a very noticeable difference in the primary modulation signal between
WSJT-X versions. 1.9.1 and 2.0.0 show wide modulation with characteristics
similar to key clicks at each tone change. Versions 2.2.1 and 2.3.0 show a
softer change between tones with no "clicks".
Andy, k3wyc
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