This is sort of related , but a bit of a stretch....:
I messed around in another lifetime with Weathersats.
From an Electronics and Radio hobbyist background I built several
weather satellite (NOAA and Russian Meteosat) decoders
and antennas.
Long story short, you picked up the feeble line by line
'live' picture coming direct from polar orbiting weathersats that
passed over twice a day.
Your homemade omni antenna picked it up and displayed the live
pic coming in. The picture you got was obviously whatever part
of Australia the satellite was passing over as you received it.
On my best reception days I could have a pic start with the
satellite far down in the Southern Ocean and lose the signal as it
flew over Darwin. Me receiving in Adelaide.
When I first did it it was on an old Amiga 500 computer and later on
486s.
Later, when someone wrote software called WxSat, a dabbler could feed
in scanner audio (modified wideband IF) into the soundcard of the PC
and the computer would decode the audio into a picture.
I modified my Yaesu FRG9600.
All of this was a great experience in dealing with just how tiny the signals
were and nursing them out of a very noisy band with masthead preamps
and good antennas. They were (and I think, still are) in the 2m band at
137Mhz. A higher res picture was also available from the same satellite
but you needed a dish to receive (and track) it.
Some outdated NOAA frequencies here:
http://www.hffax.de/html/last_info.htm
WxSat software here:
http://www.hffax.de/html/hauptteil_wxsat.htm
Steve