homemade GPS jammer

Published on January 29th, 2007 in gps navigation, hacks, tracking

gps_jammer_403.jpg
Today we are featuring an article from Phrack - an online hacker magazine. What we have is a do-it-yourself GPS jammer that can have a range of upto several hundred feet. Keep in mind this is not an easy hack - a bachelors in electrical engineering seems like a prerequisite.

The GPS band pass filter is a 2-pole Toko 4DFA-1575B-12 ceramic dielectric filter from Digi-Key[4], part number TKS2609CT-ND. This part is optional, but helps clean up the RF spectrum before further amplification. The filter’s insertion loss is around 2 dB.

The final RF amplifier is a WJ Communications AH102. It provides another 13 dB of gain, with a higher P1dB compression point of around +27 dBm (500 mW). The AH102 draws the most current of any part, and is not really necessary if you’re aiming for a low range, low current, battery operated device.

This hack is designed to be a low cost one, only using components you can easily find at a trip to Radio Shack. It targets the Global Positioning System (GPS/NAVSTAR) L1 frequency of 1575.42 MHz. Also keep in mind this device will not work against the Russian GLONASS or European Galileo systems.

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This entry was posted on Monday, January 29th, 2007 at 4:15 am and is filed under gps navigation, hacks, tracking. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.


5 Responses to “homemade GPS jammer”

  1. maximojo Says:
    July 4th, 2007 at 7:43 am

    any way to get the full schematic? thaks

  2. Guillermo Says:
    October 13th, 2007 at 11:41 am

    Priceo of jammer

  3. OUF ! ON VA POUVOIR ÉCHAPPER AU FLICAGE ! « Libertes & Internets Says:
    November 20th, 2007 at 2:11 pm

    [...] 20 novembre 2007 OUF ! ON VA POUVOIR ÉCHAPPER AU FLICAGE ! Posted by libertesinternets under Privacy, Surveillance, Téléphones GPS, Vie privée   Si vous êtes du genre bricoleur, vous pouvez aussi fabriquer un brouilleur vous-même. Navigadget vous explique comment faire :  http://www.navigadget.com/index.php/2007/01/29/homemade-gps-jammer/ [...]

  4. Jenny Says:
    February 16th, 2008 at 12:40 pm

    My daughter is being stocked by an ex boy friend & I want to know is there a way to find out if her car has a GPS device on it. I would great appreciate your assistance.

    Thank you,

    Jenny

  5. nabil Says:
    May 23rd, 2008 at 8:27 am

    very nice stuff
    i will try some of it after finishing my exams

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