Thursday, September 25, 2014
Make this Cell Phone Jammer Circuit at Home
A “Cell Jammer” is actually technique of pointing out a “Nuisance RF Maker” which just might happen to get distributed within the Cellular Phone Bands. Certainty is, the dirtier the more beneficial.
The 555 timer IC purely renders a noise. It’s hooked via C4 to modulate the MRF transistor oscillator. With C1 fixed at about 1/3rd, you will be in close proximity to nine hundred MHz. By cleaning the C1 trimmer capacitor, you could fluctuate the output frequency from 800 MHz to 2 GHz with the transistor and values presented.
You may substitute the 555 chip with an electret microphone and tune in to by yourself lecture on a scanner, thus the product could very well duo as a UHF Bug.
Rather than one particular Tapped Coil, I’ve used a couple of plastic inductors for simple structure.Values for C1,C2,L1,L2 are fundamental for the frequency range.
You may perhaps build the component into a metallic box, add an on/off control in the dc batteries + track, and possibly bring in a LED. Connect a well used eight hundred MHz cellphone antenna to C5.
Do you believe the whole item could be produced on the top of the 555 IC itself when utilizing surface mount parts, and the lot will probably hold onto a 9 volt battery snap. Output is moderately sound, though the current draw is a tad bit substantial, so a brand new 9 Volt battery will simply manage in the vicinity of one hour,.
The “Cell Kill Distance” is around 10 – 15 ft, sufficient for most grounds.
The 555 timer IC purely renders a noise. It’s hooked via C4 to modulate the MRF transistor oscillator. With C1 fixed at about 1/3rd, you will be in close proximity to nine hundred MHz. By cleaning the C1 trimmer capacitor, you could fluctuate the output frequency from 800 MHz to 2 GHz with the transistor and values presented.
You may substitute the 555 chip with an electret microphone and tune in to by yourself lecture on a scanner, thus the product could very well duo as a UHF Bug.
Rather than one particular Tapped Coil, I’ve used a couple of plastic inductors for simple structure.Values for C1,C2,L1,L2 are fundamental for the frequency range.
You may perhaps build the component into a metallic box, add an on/off control in the dc batteries + track, and possibly bring in a LED. Connect a well used eight hundred MHz cellphone antenna to C5.
Do you believe the whole item could be produced on the top of the 555 IC itself when utilizing surface mount parts, and the lot will probably hold onto a 9 volt battery snap. Output is moderately sound, though the current draw is a tad bit substantial, so a brand new 9 Volt battery will simply manage in the vicinity of one hour,.
The “Cell Kill Distance” is around 10 – 15 ft, sufficient for most grounds.
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