On Mon, 19 Nov 2018, Dave Taht wrote:
I'm not sure if this was a fluke or not, but at Starbucks recently I sat
outside,
right next to their window, and could not scan their AP at all. Previously, I
sat
inside, 3 feet away through the glass, and got great signal. I wonder what
that was
all about! Maybe special tinting that blocks RF? Or just dumb luck of some
sort.
Ya know, I could definitely see a market for a material like that! I'd
like it for my car, so bluetooth wouldn't escape.
That would break your tire pressure sensors (each car is rolling around
broadcasting 4 unique bluetooth IDs, not hard to track)
David Lang
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