>Why actually set the computer clock? Just compute an offset for the local >clock based on the mean (or median) of the DT of the decoded messages. Then >use this offset within WSJT-X to adjust the time used in the software from the >actual computer clock.
Hi Jim Consider what would happen, if all stations would use dT mean or median for offset. Each time you station will set local offset based on dT and use it at transmissions. So you transmitted time will be slightly different than UTC time, not much but different. Other stations decoding you will use that time as a part of the mean or median calculation and will have another time difference to UTC. The result will be a random walk that may or more probably will result an accumulated time difference. That means at least an additional search is needed for current mean or median time difference each time you power on your computer and WSJTX. If there is only weak stations potentially decodeable on band and your computer time is off more than say 3 s, then it may take a long time before you can decode any signal. In addition each band over globe will drift to different dT mean values during no or bad propagation. The end result will be that local (within propagation) station will have a different timebase than DX stations and mean dT will mean that no DX will be decoded due to time difference. Of course your WSJT could then have different mean dT for different continents and that will be told in all spots… Nice chaos. 73, Reino oh3ma
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