An experienced local MW broadcast engineer and low band ham, VE6LO now SK,
did some experiments with radials on a 160m vertical he had with a yard
that also had obstacles. Using a RF current meter (similar to the MFJ 854
I expect) he came to the conclusion that if a radial had to be bent to go
around an obstacle, you might as well not bother - as he found very little
RF continued past the bend.
73 Don
VE6JY
On Mon, May 14, 2018 at 1:22 AM Joe Giacobello, K2XX via TowerTalk <
towertalk@contesting.com> wrote:
> Yea! Verily!
>
> > Stan Stockton <mailto:wa5rtg@gmail.com>
> > Sunday, May 13, 2018 4:32 PM
> > I would stake them down at base of wall, go up and over the wall,
> > stake them down on other side and continue out.
> >
> > Stan, K5GO
> >
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
> >
> > Kevin Shea via TowerTalk <mailto:towertalk@contesting.com>
> > Sunday, May 13, 2018 3:57 PM
> > Now that the glacier has receded from Wisconsin, I want to put in
> > radials around my 80' AN Wireless tower (free standing no guy wires).
> > About 20' out on an arc of about 75 degrees I have an old stone wall.
> > It's not high but has huge glacial boulders which really can't be
> > moved. My radials will be about 100' long (some a bit longer some a
> > bit shorter). They will be buried using a trencher designed to bury
> > invisible dog fence or lawn sprinkler pipes. I will likely go down ~3"
> > using 15 gauge solid enamel copper wire (got it an auction of a
> > transformer mfgr going out of business).
> >
> > My question is: should I run the 20' radials out and end them at the
> > wall, and the radials at the end edges of the wall (either side of the
> > 75 degree arc) connect those to a wire (forming a chord - parallel to
> > the far side of the stone wall) and then connect radials to this cord
> > and continue those radials out another 80-100'?
> >
> > Hard to explain without a drawing. I would also mention that the
> > ground falls away from the tower in this direction, probable down 25'
> > from the base of the tower. This is into a woods and the soil is very
> > rich and should be a good conductor.
> >
> > 73,
> > Kevin N9JKP
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
> >
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|