this post was submitted on 17 Apr 2025
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  • UK-made, invisible radio wave weapon knocks out drone swarms for the first time.
  • Weapon has potential to help protect against drone threats as nature of warfare changes.
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[–] [email protected] 29 points 4 days ago (3 children)

It uses high frequency radio waves to disrupt or damage critical electronic components inside drones, causing them to crash or malfunction.

At a range of 1km…

That‘s useful not just for drones. I wonder if this works against helicopters, too.

[–] [email protected] 3 points 2 days ago

Seriously this! People don't understand that even hobby drones at a certain price point have robust rf shielding.

[–] [email protected] 4 points 3 days ago (1 children)

More like: That could be useful, just not for (perhaps many) drones.

1km isn't that far - the drones that were used for surveillance of Minneapolis protests in 2020 were around 6km up.

If they needed to get close for some reason, would a 1km deterrent be countered enough by approaching from directly above and using gravity for the last km?

[–] [email protected] 4 points 2 days ago

The drones used in Ukraine are basically just commercial drones with grenades strapped to them. And a 1 km distance they're unlikely to be able to damage a target even if they detonated.

[–] [email protected] 11 points 4 days ago* (last edited 4 days ago) (3 children)

It sounds like it's a directed microwave cooker. Works on people too, just not ones behind good cover.

Edit: ah, high frequency, my bad, it's a gamma gun. Same principles apply I think, give or take the cover.

[–] [email protected] 17 points 3 days ago* (last edited 3 days ago)

They are definitely not blasting gamma rays to bring down drones lol. "radio" is a specific range of frequencies so "high frequency radio" is just frequencies at the higher end of that specific range.

Gamma rays are insanely dangerous. I'm too lazy to do calculations/research to back this up but I suspect that gamma rays intense enough to reliably drop a drone would also give cancer/radiation poisoning to anyone remotely downrange (and also the operators). Furthermore, I don't think we have a way to produce gamma rays in any high intensity in the lab. matter-antimatter annihilation and fusion bombs are the only way I know of for humans to produce gamma rays. The former can only be done at atomic scale in the lab and the latter is, well, I guess that also destroys drones (and everything else within 100km)

[–] [email protected] 6 points 3 days ago

High frequency radio is still below the visible part of the spectrum, gamma is waaay above it.

[–] [email protected] 2 points 3 days ago

Tech Ingredients YT channel made a diy microwave directed energy device to disrupt consumer drones.