[time-nuts] Improving performance of a GPS antenna...?

Michael Baker mpb45 at clanbaker.org
Wed Apr 4 12:53:29 UTC 2012


Hello, Time-Nutters--

I saw a rather expensive GPS antenna made by one of the
big-name GPS survey equipment mfgrs that was mounted
on top of a 12 or 15 inch diameter disc about 3/4 inch thick.

Turns out that the disc is made of some sort of RF absorbent
foam covered by a weather-proofing coating of some sort.

If one were to try to home-brew something like this, where
would a small piece of the RF absorbent material be obtained
without having to spend too much $$ for this experiment?

Thanks for any feedback on this!!

Mike Baker
WA4HFR
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