Richard, is that in SSB mode or something else? Is that "ALC" actually ALC feedback that is reducing the gain of the PA, or is it just a sort of power meter? If you are in SSB mode with no audio filtering, you should see a flat response well above 2.5 kHz. I'm assuming you have all processing disabled and that no actual ALC is in use as it serves no useful purpose in digital modes. If you are driving something into ALC then reduce the WSJT-X power slider until the measured output power drops a little, and there is no ALC being used to depress the PA gain ( or you get to the power you want to use). Does the radio sound ok with normal speech bandwidth if you use a microphone or other audio source via the sound card instead of WSJT-X?
It certainly appears that your transmit audio is being filtered by "something". Neil G4DBN > On 7 Jul 2024, at 02:07, Richard Shaw via wsjt-devel > <wsjt-devel@lists.sourceforge.net> wrote: > > > That doesn't appear to be the case. at around 1500Hz I get ALC just over S9 > which is about 50% of the meter reading. The operating manual suggests this > is fine. If I choose a TX frequency close to 2000Hz the ALC meter reading is > essentially zero. > > Thanks, > Richard > KF5OIM > > _______________________________________________ > 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
