Paul Heslop wrote:
>
> elag wrote:
> >
....
> > I thought they would have to be open, but I was wondering if they used
> > some thin material invisible to the wavelength being received. I've
> > read that this is possible...
> >
> I couldn't see anything on that square one that looked as if it would
> open, so I am going to assume they've found a way to have them work
> closed.
I have seen pics of cloth dish covers so it seems signal can be recieved
through some opaque materials.
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