ADS-B Receiver for the PC - $20
 

I have been seeing this little USB Dongle for sale on e-bay and other places, that claim to be a Software Defined Receiver (SDR) that covers 24Mhz to something like 2400Mhz and they only cost about $23.00 shipped and the software is FREE. It covers all modes. AM, FM, WFM, USB, LSB, CW, DSB, RAW.

Has a great waterfall display.

A friend wrote an article for QST. Bob's article is about using one of these SDR dongles to track aircraft.

Here are some links to help you.

http://www.amazon.com/Receiver-RTL28...=nooelec+r820t

http://www.amazon.com/coaxial-cable-...ref=pd_sim_e_1

http://www.arrl.org/files/file/QST/T...Jan2013QST.pdf

http://www.rtl-sdr.com/rtl-sdr-quick-start-guide/

Just needs some pi
 

Sweet. One of these, a Raspberry Pi, and a cheap laptop display and you've got your own on board WX display.

Unfortunately it's not that easy. These receivers and software can do the 1090MHz stuff that lets you display commercial aircraft, but to my knowledge nobody has had any luck decoding the 978 MHz UAT FIS-B stuff yet.

edit: discussed here: http://www.vansairforce.com/communit...ad.php?t=98171