The article in the compedium is short, but my understanding of antenna
theory would make me believe that the increase in the feedpoint
impedance
would make the matching network less critical for losses. The antenna
also is noted to appear inductive, so that matching can be done with
a parallel capacitor across the load to tune out the reactance, and fed
through another series capacitor for matching.
What I find interesting is the shorting cable to also help conjugate
matching
of the feedpoint impedance.
I ordered 500 feet of ground wire last week, so I am intending to put
the best
ground under the tower that I can, and alternate ground rods at the end
of
every other ground wire. I don't have space for full length radials on
160
meters, so, everything is compromise at best. Regardless, this is an
experiment
for me to get a signal on the topband.
So, the question, now, the three vertical wires spaced approximately 30
inches around
the tower will be 45 feet in length. The tower is a 50 foot tower.
This is still a
short vertical for 160 meters, is the antenna in fact going to appear
inductive? Am
I still going to need a low resistance hi Q coil between the feedpoint
and the ground
system to resonate it? Thanks
Tom Osborne wrote:
>
> w8ji.tom wrote:
>
> > I don't have the compendiums, but I do know that Bill Orr and a few >others
> > (including one manufacturer) incorrectly claim the folded >elements raise
> > radiati
>
> Hi Tom.
> Making the vertical into a folded monopole makes it easier to match than
> a single vertical. I've put up a couple of them for 80 and they are a
> great match to 50 ohm coax. Are they less effective than a regular
> vertical or about the same. Thanks and 73
> Tom W7WHY
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