Topband: Adding chicken wire or mesh on top of radial field
Bryon Paul Veal NØAH
bryonveal at msn.com
Mon Jan 29 12:58:28 EST 2018
The SWR increase is a good thing as it shows deminishing ground losses exposing the true mismatch of the 50 ohm coax to the impedance of the vertical. So with a limited radial field, the mesh seemed to help....
My first Inv L back in 1998 with one radial was a flat 1:1 match until W0YG explained to be what was going on. By the time I added 60 1/4 wave radials, I was at 4:1 at resonance and used an UnUn to match the coax to the vertical for a 1.2:1 match.
Still use the UnUn with my MA160V and MA80/40V .....
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From: Topband <topband-bounces at contesting.com> on behalf of Eugene Colton <epcolton at gmail.com>
Sent: Monday, January 29, 2018 10:50:43 AM
To: W0MU Mike Fatchett
Cc: topband at contesting.com
Subject: Re: Topband: Adding chicken wire or mesh on top of radial field
My experience it helped a lot on top of my minimal 160 radial field by
adding much wire square footage to the ground radials. It might not add
much improvement to a very extensive 160 radial field however. Expect your
SWR to increase somewhat.
On Sat, Jan 27, 2018 at 11:55 AM, W0MU Mike Fatchett <w0mu at w0mu.com> wrote:
> I have some 6ft wide chicken wire I can roll out on top of my existing
> radial field for 160. Does anyone have an idea what this might do?
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