Topband: Radials over a stone wall
telegrapher9 at gmail.com
Fri Aug 10 09:19:52 PDT 2012
I can run a NEC simulation tomorrow to see how much radials up and over
On Aug 10, 2012 10:16 AM, "Herb Schoenbohm" <herbs at vitelcom.net> wrote:
> On 8/10/2012 11:17 AM, N2TK, Tony wrote:
> > I shunt feed my tower for topband. I use variable vacuum caps and a
> > relay at the base to switch between the low end and the high end of the
> > band. It seems to work okay. I have 100' buried radials spaced 10' at the
> > ends from o degrees going clockwise through about 220 degrees. I have a
> > high stone wall that runs about 20/200 degrees that is about 35' at its
> > closest point to the tower. So the radials are progressively shorter on
> > West side of the tower.
> > I am making an assumption that going up over the wall will distort any
> > benefits of extending the radials on the West side? Is that a true
> > assumption.
> > I can't really have the radials go from the tower base up at an angle to
> > clear the stone wall and continue on. If I am to extend them the radials
> > would have to go on the ground to the wall then up and over and back
> down to
> > the ground.
> Tony, A long masonry drill used in the cable TV industry (which has a
> hole on the pointed end to attach the wire and pull it through the wall,
> is your best option in my view.
> Herb Schoenbohm, KV4FZ
> UR RST IS ... ... ..9 QSB QSB - hw? BK
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