Reply to post: An immobile solution

Blight the power: Jamming attack cripples wireless signals using clever reflective technology

Pete 2 Silver badge

An immobile solution

> An IRS-enabled element like a wall ...

I think the idea of hauling a wall around, just to jam someone's mobile phone, would be a bit of a giveaway.

Although all this seems to be doing is reflecting the cellphone radio frequencies back, out of phase with the incoming one. The wavelength of an 1800MHz mobile signal is only 16cm. So you would only have to move the mobile phone a small amount to be away from the nulled out point. What would this wall do, if there were two cell towers that a phone could connect to?

Even if the wall has the ability to track the position of a phone down to 1cm or so and can do that in real-time, there must be easier ways to futz with someone's signal.

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