Airplane tracking with RTL-SDR
Before diving into some of the more challenging and arcane "upper atmosphere" options to use RTL-SDR, we will do a recipe that's a little easier and more down to Earth, namely tracking planes.
This recipe is derived from a variety of sources, including David Scheltema's tutorial on Make Magazine (http://makezine.com/projects/tracking-planes-with-rtl-sdr/), which is a Debian variation on an RPi version. It also comes via the posts of David Taylor of Edinburgh, Scotland (satsignal.eu/raspberry-pi/dump1090.html) and Drew Fustini of Chicago, Illinois (element14.com/community/community/designcenter/single-board-computers/blog/2014/04/07/sdr-and-sbc-cheap-thrills-with-radio-waves) for Angstrom on the BBB. Additionally, Adafruit has a lesson for the RPi, which either borrows from or is inspired by the references mentioned before. All of these miss some steps, however, to make it fly on the current BeagleBone Black Debian distros, be it Wheezy or Jessie.