Paul, Thanks for detailed answers to the questions.
May I ask further clarification what's happening. You said earlier: "5. Waterfall timing is correct and can see the six second early start of sequence." Do you mean early start of the transmission sequence? Can you still decode other transmissions after that instance? I try to figure out whether only the transmission timing is starting too early or both transmission and reception. Do you see your transmissions on wspr.live? I am not used it myself and could not spot W6EXT at all but may be my fault. You could use it to monitor your transmissions. "6. Only happens if transmit box is ticked." That may be an answer, but are also receptions stepped six seconds? I assume not as you say that the waterfall timing is correct. I mean also after the instance. By the way FST4W beacon mode is more advanced than WSPR providing 1.8 dB better performance in 120 s sub-mode. It also can send all information in a single message. For some reason on some bands WSPR is still used more than FST4W. Perhaps the reason is a bit more complex waveform of the 4-GFSK with smooth frequency transitions requiring a bit more complex frequency controls of frequency synthesizers. 73, Reino OH3mA _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
