"David Harper" wrote in message
m...
I was wondering what the general relationship between frequency and
its ability to transmit through various materials? For instance, 1GHz
and 1MHz obviously transmit differently through materials. I'm
curious as to what material properties are involved (i.e. dielectric
constant, density, etc?)

The main reason for this questions is I'm wondering how well 1+ GHz
(GPS) signals transmit through about 1.5 inches of expanded
polystyrene (styrofoam).

Thanks in advance for any insight!
Dave

Off the cuff, I'd say it'll have no noticable effect...
Some of this can have additives which may change the equation.

Lenses...Hmmm. Interesting idea.

I can try it and see what effect I can see on the signal strength bars on
the GPS.

I do know that my older GPS (Sequential receiver) doesn't receive in the
house. I suspect it is from the foil backing on the fiber glass insulation
in the ceiling.
Steve N.
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Steve N, K,9;d, c. i My email has no u's.