Hi Bob, Thanks Bob. It's hard to say whether or not it attenuates at the lower elevations, but it does add gain to the higher ones. Well, at least I have some idea what I'm shooting for.
Bob >________________________________ > From: Bob Camp <li...@rtty.us> >To: Discussion of precise time and frequency measurement <time-nuts@febo.com> >Sent: Thursday, October 10, 2013 4:41 PM >Subject: Re: [time-nuts] Choke Ring Antenna - Patch Placement? > > >Hi > >You are looking for total rejection of any signal below the horizon, and near >total rejection of any signal within 10 degrees of the horizon. Obviously >total and near total could have db numbers associated with them, but the >numbers you get are what ever you get…. > >Bob > >On Oct 10, 2013, at 2:15 PM, Bob Stewart <b...@evoria.net> wrote: > >> I bought a set of Wilton "tuned" pie pans yesterday to experiment with a >> choke ring antenna. The "kit" consists of 4 pans of diameters 12", 10", 8", >> and 6". The height of the sides is more or less 51mm. I've been >> experimenting with placement of the patch in the pit, but I don't know what >> I'm looking for, so a little help would be appreciated. Am I looking for >> best overall signal level from horizon to azimuth, or something else? I'm >> not sure I would know how to measure multi-path levels. There seems to be a >> definite difference depending on whether the patch is at the bottom, >> somewhere in the middle, level with the rim of the pans, or even perched on >> a DVD disk which is level with the rim. I don't have any sort of metal >> container to use as a support for the patch at this point. >> >> Bob - AE6RV >> _______________________________________________ >> 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.
