[aprssig] Duplicate and Delayed Packets

[Joe Dubner]

OH7LZB, the operator of aprs.fi has written a good explanation of
duplicate and delayed packets at
http://oh7lzb.blogspot.com/2008/03/on-duplicate-and-delayed-packets.html

I can resonate with this because I had been struggling with bad APRS
position reports for a long time.  Bogus lat/long, munged callsigns,
delayed reports (some by 24 hours) and there wasn't any one single root
cause.  Nice to see the explanations and all in one place.

73,
Joe, K7JD
Lewiston, ID