If it works in the afternoon and not in the morning, it is possibly a temperature related anomaly. Unclear which hardware component is the cause, but possibly not a driver problem per se.
Have you tried slowing the baud rate down to 19200 when it's failing to see if it will work at the slower speed? I have run a K3 as low as 9600 to perfect effect. 73, David - N5DCH > On Jan 26, 2021, at 8:02 AM, Richard <[email protected]> wrote: > > Doug, > > Thought I was home free last night (Jan 24). My final recipe was this: > > RADIO Panel: > Rig: K3s > Poll Interval: 1 s > CAT Control > Serial Port: /dev/tty.usbserial-A60092F3 > Serial Port Parameters > Baud Rate: 38400 > Data Bits - Eight > Stop Bits - One > Handshake - None > Force Control Lines - both blank > PTT Method - CAT > Mode - Data/Pkt > Split Operation - None > > AUDIO Panel: USB Audio CODEC at computer and WSJT-X > > The PWR slider is set to produce ALC of 4 solid bars and 5th bar fluttering. > > I spent four or five hours working DX with it on 30-meter FT8 last night, and > that setup worked PERFECTLY every time: Transmit start and Transmit stop > times right on the money. I mean, it was PERFECT! > > I thought I was home free. I took screen shots of every Preference panel, the > Mac Sound thing, even the Audio MIDI Setup panel in the Mac mini. > > BUT! When I fired it up this morning (Jan 25), it was right back to starting > Transmit late and not coming out of Transmit… at all. I have to tap the XMIT > button to stop it. What the hell??? What could change overnight? I didn’t > touch anything when I shut down last night or when I fired up this morning. > > HOWEVER, as the afternoon and evening arrived, those symptoms went away and > the setup was perfect again! > > MORE HOWEVER, This morning, Jan 26, the symptoms were back again. I’ll take > another look this afternoon, but this is getting spooky. > > ANY and ALL ideas and suggestions will be MOST welcome, up to and including > (if absolutely necessary), replacing the driver. > > Cheers, > > Richard Kunc - W4KBX > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]

