How can i make a cell phone jammer?

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i own a small zen/massage parlor and it should be quit here but cell phones whal here all the time i need to jam cell phone calls only for the wating room it like 40feet by 80feet i can make my own if i have the plans helphelphelp




A cell phone is just a radio. If you jam the frequencies on which cell phones work, then you have jammed the phones. However, as both a tech support rep for a large cellular company AND as an amateur ("ham") radio operator, I can tell you that what you're talking about is illegal, and I would not advise you to try it; what you're proposing is a violation of federal law.


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