[This message was reposted from eHam.net's APRS forum by the author]
I'm writing an APRS client in Ruby, so I've spent a lot of time
staring at packets. I think I understand how RELAY works -- whatever
station repeats RELAY packets replaces RELAY with their callsign. WIDE
works the same way, but what about WIDEN-n? I've collected some
packets with my AEA TNC to demonstrate my confusion.