SBARC Tech's Help Solve Global APRS Flaw
It all began when Levi Maaia, K6LCM, was engaged with yet
another of his stratosphere weather balloon experiments at the Anacapa
School. An experimental sensor array data feeding a Byonics TNC to the
SBARC APRS 144.39 system turned into unexpected results. Levi soon
discovered a reporting flaw on the aprs.fi global reporting system.
He noticed his WX data wasn't showing up on aprs.fi, but it was showing
up on findu.com. The issue quickly got the attention of Shaw Takeuchi,
AE6BL, of SBARC, Heikki Hannikainen (Hessu) in Finland who is the author
of aprs.fi as well as Pete Loveall, AE5PL, author of javaparssrvr. Lead
troubleshooter was Lynn W Deffenbaugh (Mr), KJ4ERJ, author of APRSISCE
for Windows Mobile and Win32 who was assigned to the case. It was
discovered that the global complex network of data servers in multiple
layers had two servers which were misconfigured causing the system to
drop WX data coming from APRS.
Worldwide flash emails were going back and forth this week to help nail
down the heretofore undiscovered flaw in the system. With Levi
discovering the problem and Shaw defending the SBARC configuration it
focused the the worldwide experts on solving the server problem. There is
much more detail to this story which hopefully can be documented for a
good Key-Klix article. You guy's did a GREAT JOB of global team work in
communicating the data back to the authors in solving their undiscovered
problem.