Hi,
I have been interested in astronomy for many years as well as software, electronics and radio comms. Radio Astronomy combines those areas nicely. I have built systems to detect extra-galactic neutral hydrogen (H1) line emissions (SMC & LMC)...
http://hawkrao.joataman.net/H1/
...as well as daily observations of the Vela Pulsar...
http://hawkrao.joataman.net/pulsar/index.html
I am interested to know of any AUS/NZ activities in similar areas.