On 1/10/2022 1:13 PM, Jim Brown wrote:
As usual, I agree with Rick. But I'd like to observe that an extensive
study of loaded mobile whips published in two parts in QEX about ten
years ago showed that inductive loading, especially at the base, was a
73, Jim K9YC
I wasn't clear. I
, January 10, 2022 1:13 PM
To: topband@contesting.com
Subject: Re: Topband: Radials on ground v FCP
As usual, I agree with Rick. But I'd like to observe that an extensive study
of loaded mobile whips published in two parts in QEX about ten years ago showed
that inductive loading, especially
As usual, I agree with Rick. But I'd like to observe that an extensive
study of loaded mobile whips published in two parts in QEX about ten
years ago showed that inductive loading, especially at the base, was a
bad idea, and that the closer loading moved to the top, the more
efficient was the
On 1/10/2022 10:42 AM, Kenny Silverman wrote:
N6BT’s ring is pretty flexible in its dimensions. It can be 3 or 4 sides (or
anywhere in between) and can handle some variation in symmetry.
I’ve been having issues finding a solution to the high tree attenuation on my
property and I had an
N6BT’s ring is pretty flexible in its dimensions. It can be 3 or 4 sides (or
anywhere in between) and can handle some variation in symmetry.
I’ve been having issues finding a solution to the high tree attenuation on my
property and I had an inverted L with the ring and another inverted L 340’
I took my inspiration for the one turn counterpoise idea from HF Antenna For
All Locations page 155, Fig 11.9(m).
David G3UNA
> On 09 January 2022 at 17:09 CUTTER DAVID via Topband
> wrote:
>
>
> Thanks, Rick.
>
> My particular circumstances limit me to a small triangle of ground in
On 1/9/2022 8:22 AM, Richard (Rick) Karlquist wrote:
electric fence wire works perfectly for elevated radials Also consider
N6BT's single spiral radial configuration as an alternative to FCP.
Rick N6RK
_
See:
https://nextgenerationantennas.com/presentations-1
Rick N6RK
Thanks, Rick.
My particular circumstances limit me to a small triangle of ground in the
corner of a field and the FCP suits that very well. It would be interesting to
know how the FCP compares to something well known, like a broadcast station
ground.
I like the idea of the spiral
On 1/9/2022 4:51 AM, CUTTER DAVID via Topband wrote:
Hi Rob
I see copper prices have doubled in the last year.
My intention is to compare and contrast the cost and performance of short
verticals over a large field of ground radials v the very modest amount of wire
required for the FCP. In
Hi Rob
I see copper prices have doubled in the last year.
My intention is to compare and contrast the cost and performance of short
verticals over a large field of ground radials v the very modest amount of wire
required for the FCP. In Guy's article
Message -
From: "K9YC"
To: "topband"
Sent: Saturday, January 8, 2022 5:36:03 PM
Subject: Re: Topband: Radials on ground v FCP
On 1/8/2022 7:27 AM, CUTTER DAVID via Topband wrote:
I recall a discussion on here some years ago which proposed that, whilst being
an amazing
On 1/8/2022 8:27 AM, CUTTER DAVID via Topband wrote:
Rob
I recall a discussion on here some years ago which proposed that, whilst being
an amazing antenna for top band, if you could achieve it, the broadcast model
was not necessarily the best use of resources for amateur purposes, on the
I can't comment on the folded counterpoise because I am not familiar
with it. The "broadcast model" which I take to mean 120 radials is
used because in the case of a 90 degree tower on medium wave, the
earth current intensity is far enough from the feed point to
necessitate a higher number of
On 1/8/2022 7:27 AM, CUTTER DAVID via Topband wrote:
I recall a discussion on here some years ago which proposed that, whilst being
an amazing antenna for top band, if you could achieve it, the broadcast model
was not necessarily the best use of resources for amateur purposes, on the
basis
Rob
I recall a discussion on here some years ago which proposed that, whilst being
an amazing antenna for top band, if you could achieve it, the broadcast model
was not necessarily the best use of resources for amateur purposes, on the
basis that broadcasters are mainly interested in ground
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