A buddy of mine just got me some custom QSL cards, so I have no excuse not to fix my antenna and get on the air!
Some of the software included in the precompiled debian packages:
Gpredict (Real time satellite tracking): http://gpredict.oz9aec.net/
Yagi uda project (design and analyze performance of yagi antennae) http://www.g8wrb.org/yagi/
Freedv (digital speech radio): http://freedv.org/tiki-index.php
GNU-AIS (Decode messages from ships and coastal stations): http://gnuais.sourceforge.net/
Multimon radio decoder (use your sound target as a modem).
GRIG: Hamlib based radio control library http://groundstation.sourceforge.net/grig/
Chirp (configure your baofeng UV-5R radio) http://chirp.danplanet.com/projects/chirp/wiki/Home
List of debian packages available with: apt search ^hamradio