amdx wrote:
"amdx" wrote in message
...
I have a Directv dish 35 inches wide x 20 inches tall 4inches deep.
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I was suprised this dish is made of plastic. Does the EM wave reflect off
of the plastic or does the plastic have a coating?
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It is possibly an aluminium foil reflector sandwiched between 2 layers
of plastic.
I have a 1 metre dia sat dish with the aluminium foil sandwiched between
2 layers of fibre glass/epoxy.

Frank GM0CSZ / KN6WH