On Feb 25, 10:19�pm, "Dee Flint" wrote:
"Klystron" wrote in message
...

The ten year license
term means that, on average, it will be
five years before a dead ham is
dropped from the rolls, assuming that his heirs do not notify the FC
C.

That assumes an even distribution of expiration dates. That's not
necessarily a valid assumption, because events like changes in the
vanity call rules have resulted in a lot of expiration dates being
clustered in certain years, leaving other years rather lean.

Try more like 6 years since there is a two year grace period
after the
expiration date that also needs to be factored in.

That depends on which numbers are used. The numbers posted at the
beginning of this thread include only current, unexpired licenses, not
those in the grace period. So the 5 year number is
correct if we assume an even distribution of license expirations by
year. The numbers on hamdata.com do include licenses that are
expired-but-in-the-grace-period.

btw, in Part 97 FCC uses the term "expire" to mean
the end of the 10 year license term, not the 2 year grace period.

73 de Jim, N2EY