[TowerTalk] Vertical with 1 radial

[Alex Malyava]

I think the article in question was in NCJ describing inverted L antennas
for 160 and 80.
It surprised me too. The main point was to put only one radial to have
antenna close to 50 ohm so no matching network is needed otherwise "if you
put too mane radials you will need an antenna tuner" :)

AM


On Thu, May 12, 2011 at 3:56 PM, Gary Schafer <garyschafer at comcast.net>wrote:

> The question is "gain over what"?
>
> Gain over a vertical with 36 radials? I wouldn't think so!
>
> 3 dB of gain in the direction of the radial over the gain in the opposite
> direction? Possibly. Even though the whole thing may be down 6 or 8 db over
> a vertical with a large number of radials.
>
> 73
> Gary  K4FMX
>
> > -----Original Message-----
> > From: towertalk-bounces at contesting.com [mailto:towertalk-
> > bounces at contesting.com] On Behalf Of Tom Osborne
> > Sent: Thursday, May 12, 2011 3:23 PM
> > To: Towertalk
> > Subject: [TowerTalk] Vertical with 1 radial
> >
> > Blank
> > Hi All
> >
> > In the past 2 months, I have seen two different articles in ARRL
> > publications that say a vertical with 1 radial has gain in the direction
> > of
> > the radial.  One said 3 db.  Evidently Eznec confirmed this.
> >
> > Why the heck do I bother putting down all those radials under my
> > verticals??
> > According to one article, 1 radial is best because it gives the antenna
> > a
> > real wide bandwitch, SWR is close to 50 ohms, and has gain in the
> > direction
> > of the radial.  Seems like those symptoms would give loss not gain.
> >
> > Is this true, or is the ARRL just publishing anything now?  Sure is
> > different from anything I've ever known about verticals.
> >
> > Seems like I should be able to put up an antenna with 1 radial on my
> > rotor
> > and I could point it just like a beam.  Fill me in.  73
> > Tom W7WHY
> >
> >
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