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I need to make GSM noise

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ayemen

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hi all
i want to make one circuit to stop GSM cell phones around me making calls
like increase the noise or any thing else
just 4 fun

thank
 

thanks for your speed answer :D

but advice me for easiest one
 

The easiest one it's not always the one with 100% chances to work.
Critical components are VCO and RF amplifier.
See schematics ''fig-7.jpg'' on page 2
 

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