The necessary conditions to form signal interference

An effective signal jammer does not necessarily need to be outputting a significantly higher power level than the devices it wishes to jam. most Cellfones use CDMA technology which means they are all essentially broadcasting on the same frequency, but they are all synchronized with the base station and transmit different “codes” within that frequency to allow the base station to decipher them individually. However, a single rogue phone on the CDMA frequency that is constantly blasting out garbage noise instead of carefully synched CDMA codes will drown out its immediate neighbors…

We live in a society that thrives on cell phone usage. We keep them on hand 24/7 in case we need to look something up to win an argument, get an important text or email that couldn’t wait an hour for us to check, or take a selfie of whatever it is that we’re doing that we feel all of our Instagram followers should know about. Our cell phones have found ways to become a part of every single aspect of our lives. And while they have done a great job at connecting us with friends and family around the globe, and helping to organize our lives, we have all had movie experiences ruined by an overzealous texter.

Simply program a small microntroller to generate a random-noise base signal and possibly the serial control strings for the PLL chip and wire it into the cellfone’s circuit. Ok, that part might be a little tricky, but a little collaboration with the online hacker community could easily produce diagrams for a handful of the more popular phones showing which wires to solder into to inject your rogue signal and activate the RF amp section etc… But all the hard work of creating the RF signal generator and amp and wave shaping circuits and antenna would already be done for you!

Buy a cell phone signal cell phone jammer device from eBay, Amazon or perfectjammer. These devices will block signals anywhere from 10 to 200 feet, depending on the model that you decide to purchase.