SPER
Homepage:
The Spartan Packet Radio Experiment (SPRE) is
an Amateur Radio
communications experiment. The primary mission
was to test satellite tracking using amateur
packet radio and Global Positioning System (GPS).
SPRE was developed and built by the
University of Maryland Amateur Radio Association
(UMARA) with assistance from NASA,
volunteer engineers, and volunteer software professionals.
TNOS (LAZS): This
page has a LOT of info on TNOS.!!!