On 25/09/2019 23:42, Bill Somerville wrote:
whereas the index into a table of 64 values (48 states + 14 provinces
+ DC + DX) takes a mere 7 bits to store.
Oops, not quite correct there. It only takes 6 bits.
I should add that the actual storage is more complex as the DX serial
numbers must also be allowed and that adds all the permutations of
digits between 0001 and 7999 to the possible combinations. Those
combined with the state or province index permutations uses up just 13
bits of payload in total. Note that is still less than the 15-bits
needed to store any possible up to 3 character alphabetic string.
73
Bill
G4WJS.
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