[aDyslecticCrow]

Nobody cares? Here (sweden) its illegal to possess outside of military use. The US seems to give fines between 20-200 thousand $ for its usage and potential imprisonment for its sale. Even overboosting wifi routers for better range gets people in trouble.

It's among the most illegal things you could easily do with basic electronics equipment.

why? Part of it is historical; it used to be complicated, so being in possession of one got you in trouble with the anti terrorism squad.

These days; it's because it can block emergency services, police and military radio, and burglary alarms.

They may be lenient for a nerd playing with a router but the law its not on your side when push comes to shove.

https://legalclarity.org/are-signal-jammers-illegal-in-the-u...

[iamnothere]

This is overstating the case. In the US you can buy such devices (usually from Aliexpress but Amazon has devices capable of some jamming/deauth). They are illegal to use for intentional jamming of other people’s equipment. However, unless you go around jamming important safety equipment or making local hams angry then nothing will happen. The FCC has its hands full and can’t even seem to address persistent issues on the ham bands until they get really bad.