Contributions from the following people:

Joop Stakenborg, PA4TU <pa4tu at amsat.org> (Code Maintainer)
Rein Couperus, PA0RCT <pa0rct at amsat.org>
Wolf-Ruediger Juergens, DL2WRJ <WJuergens at t-online.de>
Ladislav Vaiz, OK1ZIA <ziav at adela.fel.zcu.cz>
