EMRFD Message Archive 12683
Message Date From Subject 12683 2016-04-20 06:43:56 Joe Everhart Villard Cage Antenna was Re: Ferrite properties A simple Google search turned up:
<https://www.arrl.org/files/file/Technology/tis/info/pdf/9408033.pdf>
Joe E., N2CX12685 2016-04-20 07:26:16 Ronan McAllister Re: Villard Cage Antenna was Re: Ferrite properties I found this recount of Villard's life achievements interesting.
https://vineyardgazette.com/obituaries/2004/01/16/oswald-g-villard-jr-87-was-electrical-engineer
12686 2016-04-20 08:25:08 Lasse Moell Re: Villard Cage Antenna was Re: Ferrite properties This lead me to an IEEE paper discussing the stealht antenna for nulling out jammers...Cannot publish this doc as it is copyright IEEE;"The Story of Compact, Directional Low-Impedance Loop Antennas (LILAs) for Short Wave Broadcast Reception"IEEE Antennas and Propagation Magazine Vol 34 No3 June 1992/Lasse SM5GLC20 april 2016 16:26:15 +02:00, skrev Ronan McAllister bass.woofer@gmail.com [emrfd] <emrfd@yahoogroups.com>:
I found this recount of Villard's life achievements interesting.
https://vineyardgazette.com/obituaries/2004/01/16/oswald-g-villard-jr-87-was-electrical-engineer
12688 2016-04-20 08:55:58 Rod KM6SN Re: Villard Cage Antenna was Re: Ferrite properties Joe,
Yes, that is another Villard direction finding technique. As shown, it is for HF, and I don't know
that it would produce the sharp nulls at VHF that the CAGE would, but it certainly
would be worth trying.
Additionally, the CAGE works in 3 dimensions, that is, it has selectivity in the elevation
plane, as well as the azimuth plane.
Maybe someone could try both and report their findings here.
Cheers,
Rod KM6SN
12691 2016-04-21 07:36:53 winston376 Re: Villard Cage Antenna was Re: Ferrite properties Rod,Very interesting info.Wondering whether this is used to track down broadband noise as opposed to a narrowband emitter?Thanks for sharing.Alex