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brk

>Authorities usually intercept unwanted (consumer) drones by blocking the signal >between the pilot and the drone;

Curious which country you are in where you see this occurring.

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Singapore, Germany, the UK, USA, Australia, .. countries with airports that want domestic security, etc.

https://www.trd.sg/

https://hp-jammer.de/en/drohnenabwehr/

etc.

Once you start looking at GPS spoofing, etc. it gets quasi-military, non-commercial, requires credentiuals | LEO contacts, ways to work around checks and balances:

https://www.regulus.com/ is Israeli miltech, other companies in other countries are similar.

It's definitely not happening in the US. I've heard of it a bit in UAE, but not much elsewhere, so I was curious where the OP was observing this.

It's definitely happening in the USofA with federal authorities acting on behalf of the FAA wrt airport security ...

Sure, that's not commercial .. but it's a Federal LEO with a tan shirt and shorts and a truck with "UAS Mitigation Systems" in the back.

https://www.faa.gov/airports/new_entrants/uas_detection_miti...

    UAS mitigation or countermeasures include the capability to disrupt, disable, destroy, take control of, and/or provide alternate flight instructions to a UAS.

    Some UAS detection systems may have countermeasure capabilities built-in, which can be disabled, while others may offer them as an optional modular capability.

    FAA currently does not support the usage of C-UAS systems by any entity other than the federal departments (Defense, Homeland Security, Justice, and Energy) that have explicit statutory authority to use this technology.

It's kept on the relative down low but it's a similar situation in most G20 countries; quasi federal, quasi military, hard to get hold of w/out specific clearances, mostly only usable with explicit statutory authority ... but "leaky" in the same sense as "fake" mobile cell towers and other technical LEO gear has been in the past, out there with systems to hack cars, etc.

Grey market availability.

GPS signal disturbancecs are surprisingly common: https://gpsjam.org/

I'm in France; here's a demo of a "drone gun" by law enforcement authorities (in French, but you can probably get the gist of it even without the dialogue):

https://www.youtube.com/watch?v=AKHNVJfVIQg&t=480s

But I'm pretty sure this exists in most/all countries; DJI even sells equipment specially designed to listen to its own drones.

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