I wouldn't attempt to tune the radials exactly to resonance, because that
will be most difficult to achieve due to a number of reasons... the worst
that may happen is that just one radial is exactly resonant, as it will
take (almost) all the return current and diminish the effect of
(horizontal
ct of (horizontal)
cancellation... make them all a little longer (or shorter) and tune the
radiator for resonance...
good luck
Uli, DJ2YA
- Original Message -
From: "Jeff Blaine"
To:
Sent: Friday, March 29, 2013 6:56 PM
Subject: Topband: trimming elevated radials
What i
It's worth looking at N6LF's QEX March/April 2012 article, available on
his web site at
http://www.antennasbyn6lf.com/2012/02/elevated-radial-ground-systems-some-cautions.html
.
73,
Steve, N2IC
On 03/31/2013 01:40 AM, Dan Maguire wrote:
Jeff Blaine wrote:
What is the preferred method of
tu
N6LF QEX stuff from last year), but
they seem to not be well known; KE7BT and K5UI.
73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie
-Original Message-
From: Dan Maguire
Sent: Sunday, March 31, 2013 2:40 AM
To: topband@contesting.com
Subject: Re: Topband: trimming elevated radials
What is the preferred method of tuning elevated radials for uniformity?
Jeff and all,
It takes two halves of a system to make a whole system. This means the
vertical affects the radial resonant length, just as the radial length would
affect the resonance of the vertical when they are in a sy
Jeff Blaine wrote:
> What is the preferred method of
> tuning elevated radials for uniformity?
> [snip] ...
> There are two methods that I thought of. Measuring the
> current at the base of the vertical/radial union and
> trimming lengths iteratively trying to get a uniform current
> reading on a
I dont know if this is the preferred method but here is what I do.
Before connecting the vertical I attach my SWR meter to the radials by pairs,
just like tuning a dipole, pruning the radial pairs
to resonance at my desired frequency. Then I connect the radials together and
attach the SWR meter
>
> What is the preferred method of tuning elevated radials for uniformity?
>
Hi Jeff,
I'd say make the radials longer than you expect them to be, put on a carrier,
and see if you can light a neon bulb at the end of a stick out at the end. As
you approach the feedpoint the voltage will go thro
What is the preferred method of tuning elevated radials for uniformity?
I realize you can measure the lengths, try to get uniform heights, etc so that
you match the model as close as possible. However, it seems that this is good
only to the first approximation.
There are two methods that I tho
