By Peter Goodhall
http://m3php.com/2012/10/10/remote-sdr-using-raspberry-pi-rtl_tcp/
AR.Drone RC mod
Extends flight range to 1.5 – 2.5 kilometers
By Albert at Dronehacks
http://dronehacks.com/2011/08/21/ar-drone-rc-mod-extends-flight-range-to-1-5-2-5-kilometers/
USB stick with GNU radio
An early example of rtl-SDR.
By Al Williams at Dr. Dobbs
http://www.drdobbs.com/embedded-systems/soft-radio/240007489
Weather balloons
Python and GPS Tracking Tutorial
Bricktronics
Lego meets Arduino
Arduino motor shield
1 MHz crystal oscillator
A low powered radio transmitter.
Jameco part number: 27861
Linking an Arduino to a Radiometrix NTX2 Transmitter
http://ukhas.org.uk/guides:linkingarduinotontx2#where_to_buy_the_ntx2
For high altitude telemetry using RTTY.
