==== global positioning system ====

[[Geolocation]]

====jamming ====
  * http://phrack.org/phrack/60/p60-0x0d.txt
  * http://sidt.gpsworld.com/gpssidt/Innovation/Innovation-Interference-Heads-Up/ArticleStandard/Article/detail/523633
  * http://tech.slashdot.org/tech/08/06/27/0426216.shtml