I've used the LJE (Lance Johnson Engineering) Radial Plates for some of my HF
Vertical antennas. I've been trying to find a link to order another one, but
haven't been successful. Does anyone know where/how to order one? They were
very convenient.
LJ
-----Original Message-----
>From: Chick Allen via TowerTalk <towertalk@contesting.com>
>Sent: Aug 24, 2018 7:21 AM
>To: towertalk@contesting.com
>Subject: [TowerTalk] Solid 160 radial plates?
>
>I've been reading a lot of older threads about using ground shields (mesh or
>solid copper ground radial plates) at the base of an Inverted L for 160.
>Several contend that AM broadcast stations use copper shielding at the base
>feedpoint with radials attached around the perimeter as currents are max
>there. Even the length of the radials becomes a question as one thread says
>the velocity factor of radials on the ground is 0.50 and the at the proper
>radial length, for on ground/slightly buried radials, is more like 80 feet and
>not one quarter wavelength. Buried radials do not need to be resonant so my
>question centers more on the use of a solid, or mesh, material at the base.
>Comments on this practice please?
>
>
>Chick, NW3Y
>___________
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