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Homemade GPS Jammer

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« on: August 25, 2010, 07:06:43 pm »

Homemade GPS Jammer
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Religions do a useful thing: they narrow God to the limits of man. Philosophy replies by doing a necessary thing: it elevates man to the plane of God.  ~Victor Hugo

Because one doesn't like the way things are is no reason to be unjust towards God.  ~Victor Hugo

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« Reply #1 on: August 26, 2010, 09:03:25 am »

When I click the link I get this message from the site:


You don't have permission to access /index.php/2007/01/29/homemade-gps-jammer on this server.

Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request.

 Huh? Sad
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« Reply #2 on: August 26, 2010, 09:30:18 am »

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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« Reply #3 on: August 26, 2010, 08:39:38 pm »

it would also let somebody home right in on you if they were looking.

goodie, I am a tech level 5 capable of wiring the bashir reactor's safety schematics. rather not, they might get pounded with me in it. too bad WE don't build them any more =(

It also looks like a QED divider, I'll have an equivalent schematic that's simpler soon enough, the divider doesn't get above a couple of Mhz(5.42 I read), wondering what else is connected. If the output is 1.5Ghz like it looks, it would be difficult to get it to work at all.

looks like fun tho
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