Hi Brian, Have you ever published your efforts with making the choke ring out of pie plates ? If so do you have that available with, hopefully, pictures, deminsions and so forth ? I have one of the Timing 2000 antennas. Did you use the choke ring pie plate with it ?
thanks, 73....Bill....WB6BNQ Brian Kirby wrote: > The Motorola Timing 2000 and 3000 antennas are patch antennas. They > have a pointed radome. The have very little ground plane, which reduces > reception near the ground, which is desirable because of multipath > effects. They also have quite a bit of filtering, so transmitting > antennas near the units, will not affect them. > > If you are not having a problem with multipath, a regular patch type > antenna probally from anybody should work well. > > If you are having multipath problems a timing antenna should help or a > choke ring assembly should help. I have built choke rings out of pie > plates, and Dr. Tom Clark made a basic choke assembly using a common > electric junction box. > > I had problems with multipath because of mountains about 3/5 around my > location. I changed the look angles so my receivers only receive above > 20 degrees above the horizon and I use timing antennas now. > > Brian KD4FM > > Matt Ettus wrote: > > Is there really anything in particular which is different about the > > antenna requirements of timing receivers as compared to ordinary > > high-quality receivers? The timing antennas seem to be in pointy > > radomes, so that tells me they are probably quad-helixes rather than > > patch antennas. How is that advantageous for timing in particular? > > > > Thanks, > > Matt > > > > _______________________________________________ > > 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. > > > > > > _______________________________________________ > 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. _______________________________________________ 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.