this post was submitted on 31 Jan 2024
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Flipper Zero

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Flipper Zero is a portable multi-tool for pentesters and geeks in a toy-like body. It loves to hack digital stuff around such as radio protocols, access control systems, hardware and more. It's fully opensource and customizable so you can extend it in whatever way you like.

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FM Radio jamming? (self.flipperzero)
submitted 9 months ago* (last edited 9 months ago) by mulcahey to c/flipperzero
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Can you jam an FM radio signal with a FZ?

Let's say, hypothetically, there's a guy who parks on your street once a week and -- for some reason that no one understands and he refuses to explain -- he absolutely BLASTS a butt rock radio station from his car speakers for 20 minutes at a time, so loud that it bounces off all the buildings on your narrow street and it sounds like it's coming from every single window. And when you go out and say, "Hey dude, I'm taking a call for work, could you not do that here? Or anywhere, really?" he smirks and looks at you like you're the one acting crazy.

Again, this is a hypothetical.

But in this hypothetical situation, could you use a FZ to jam his car radio? How? (I know that many people might call the police/311 and ask them to do something about this. That is not how I want to do this.)

Thank you for indulging this completely made up scenario.

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[–] [email protected] 3 points 9 months ago

What's the radio station frequency? I wonder if you'd be able to do it with one of those car fm transmitters. They're typically limited to between 87.9 and 107.9, but they're also limited in power to around 200 feet of range - and within those constraints it's fully legal in the US. But sticking to the legal transmit power limit would make me feel a lot safer about not getting in trouble because if you have to transmit out of the legal frequency range, it'll make it much much less likely someone will notice.