* The bottom line is that there are still a handful of selectors available in the FT4/FT8/MSK144 message payload bits that could be used for new message schemes but nowhere near the number that would be needed to support a series of county based QSO parties or similar.
But Bill, isn’t the FD message structure just that, with a lookup table that doesn’t exceed the payload ceiling? What’s the difference between the existing QRegularExpression field_day_exchange_re with a table of ARRL/RAC Sections and a proposed QRegularExpression WA_QSO_party_exchange_re of WA counties as I had suggested at the start of this thread? 73 John W7CD
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