Was searching for APRS specifications and was a pleasant "surprise" when I came upon this site.
Excellent resource, updated regularly and extensive.
Thanks for all the hard work and keep it up!
73, Corey K0AWN (http://www.qsl.net/k0awn/)
I came across this site by accident and got many useful informations about space,satellites and space ships etc.Please keep posting great news and articles regularly.