Submitted by kenda1l t3_10ocwck in explainlikeimfive
Skusci t1_j6e3rtk wrote
Reply to comment by Chaotic_Lemming in ELI5: How do jammers (cellphone etc.) work? Could one block a direct connection to a router? by kenda1l
You would be surprised.
Back as a kid I tried to make an FM transmitter and it turned out to be a cable TV jammer instead. Worked at a range of at least 100ft on a 9V battery.
Enough power and that signal will work it's way past the shielding in wired connections. Not nearly as much range though.
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