[TowerTalk] Solid 160 radial plates?

Bob Matthews kt3rr at verizon.net
Fri Aug 24 12:13:35 EDT 2018


I check out the near by body shops for bent aluminum wheels. They make a great secure base for attaching radials. 
Bob. KT3RR 

Sent from my iPhone

> On Aug 24, 2018, at 11:11, W0MU Mike Fatchett <w0mu at w0mu.com> wrote:
> 
> You can use mesh or chicken wire.  You want to use stainless grid.  Chicken wire will probably rust away pretty fast.  You can hook up additional radials to the mesh.
> 
> 
>> On 8/24/2018 8:21 AM, Chick Allen via TowerTalk wrote:
>> 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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