Perfect! That seems to be the issue. Set power down to 5W with no issues at all. Back up to 50W or above, and problems again. Ordered some ferrites and should be good to go! Didn’t even think of this as I have been very careful about grounding everything. Both the radio and tuner are grounded. Proves that RF can leak in even in a grounded system.
From: David Tiller <dtil...@davidtiller.com> Date: Monday, May 9, 2022 at 10:33 AM To: WSJT software development <wsjt-devel@lists.sourceforge.net> Cc: W2JDM <w2...@hamfm.com> Subject: Re: [wsjt-devel] Bug Report Jason, This sounds like a textbook example of RFI getting into your computer or USB cable. I had a similar issue on 80m and found that a few well-placed ferrites on my USB cable fixed the issue. Search for "FT8 RFI" for other folks advice. To verify, try transmitting into a dummy load or at _very_ low power. If it doesn't happen, you've proven it's due to RFI. On May 9, 2022, at 10:25 AM, W2JDM via wsjt-devel <wsjt-devel@lists.sourceforge.net<mailto:wsjt-devel@lists.sourceforge.net>> wrote: WSJTX Version: 2.5.4 OS – Mac Monterey 12.3.1 Radio – Yaesu 991A SiliconLabs Driver – 6.0.2 for Mac When tuned to 40m (and only 40m), using FT8, the software loses CAT control shortly after transmitting. The symptoms are that it will hold the transmit too long and eventually show ORANGE status in WSJTX. It will reset and reconnect, but not after losing the QSO due to timing issues. This occurs each and every time I transmit on 40m, including when using TUNE. I want to emphasize that it seems to ONLY occur on 40m and not any other band. I use other software that also has CAT control over the 991A and it works as designed. I have also changed the mode to FT4 and 40m behaves normally. It seems isolated to only when using FT8 and 40m. Please let me know if you need any additional details. 73 Jason – W2JDM _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net<mailto:wsjt-devel@lists.sourceforge.net> https://lists.sourceforge.net/lists/listinfo/wsjt-devel
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