>From time to time there are stations who are significantly unsynchronized with the FT8 cycle, as can be seen in the DT column. As a result, making connections by and with these stations is difficult. It is likely that the operators are not aware of the situation. Some may also be are unable to fix it, for various reasons, such as being off-grid.
If WSJT-X would compute the median DT of received stations over a reasonable period of time, it could alert the operator of the problem and offer to correct it. Notes and thoughts: 1. The correction is need not modify the computer clock but rather employ a correction offset on top of it. 2. Each received station would contribute a single DT to the median calculation regardless of the number of times it was decoded during the sampling period. 3. The use of a median reduces the impact of other unsynchronized stations, compared with the average DT. 4. The use of a threshold for the fix reduced the probability of the entire swarm drifting from the global clock. The risk would be further reduced by deleting the correction upon SWJT-X exit. Please consider this suggestion for future development. Happy New Year and 73, Zeev 4X5ZS
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