GPS Jammer


Posted on Feb 6, 2014

With a GPS receiver that costs less than a few hundred dollars you can instantly learn your location on the planet-your latitude, longitude, and even altitude-to within a few hundred feet. The output of the VCO is directly connected to a MMIC IC3. This IC amplify the RF signal and feed it to the antenna. The power to the MMIC is feed from R3 and L1.


GPS Jammer
Click here to download the full size of the above Circuit.

Although I advice you to stay around 50 mA since you can blow the MMIC with to much current. The more current the higher gain and more output jamming power. The desoldering wick is a flattened, braided copper sheath looking for all the world like shielding on phone cord (except that the shielding is tinned) without the cord. I impregnate the wick with some rosin and place it over the legs and bridges of the circuit. The wick is then heated by the soldering iron, and the molten solder flows up the braid by capillary action. Now, we must make sure that the PLL system is working and the easiest way is to measure the PLL voltage over capacitor C3 or at pin 5 of the PLL. (see schematic)




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