Yep - Faraday cages are remarkably simple devices. I was always amazed to find Signal folks setting up their OE-254's on hills surrounded by high chain link fence. If they didn't watch where their antenna was in relation to the fence, part of its line-of-sight actually went through the mesh, coincidentally right where the "outage" was reported. It's amazingly simple to shield devices from RF energy, just about anything metal whose openings are 1/4 the wavelength will block the signal.
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RE: Countermeasure Too Simple
Yep - Faraday cages are remarkably simple devices. I was always amazed to find Signal folks setting up their OE-254's on hills surrounded by high chain link fence. If they didn't watch where their antenna was in relation to the fence, part of its line-of-sight actually went through the mesh, coincidentally right where the "outage" was reported. It's amazingly simple to shield devices from RF energy, just about anything metal whose openings are 1/4 the wavelength will block the signal.
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