So it can be done: try to emulate the Zephyr GPS antenna with the RF absorber.
On Wed, Apr 4, 2012 at 3:56 PM, Robert Berg <bo...@pobox.com> wrote: > You can get inexpensive conductive foam from Amazon. > > > On 4/4/2012 5:53 AM, Michael Baker wrote: > >> 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 >> ---------------- >> >> ______________________________**_________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/** >> mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> >> and follow the instructions there. >> >> > > ______________________________**_________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
