Patrick
Your beverage direction N / S E / W are not the best direction for DX
and I am not sure about the
coupling from the strands of barber wire below it ? ( I think this would be an
issue )
As for the magnetic loop..... unless you want to null out a local ground wave
Noise, even a small Beverage
you'll be better off... There are allot of info on the web regarding the
Beverage Antenna,
Wayne W3EA
> To: richard@karlquist.com; towertalk@contesting.com
> From: patrick_g@windstream.net
> Date: Wed, 10 Feb 2016 14:56:00 -0600
> Subject: Re: [TowerTalk] TowerTalk Digest, Vol 158, Issue 20
>
> Rick, I have cross fences which run E-W and N-S diving the ranch into 4
> equal square chunks of 40 acres each. These fences are, of course, 1/2
> mile long. They are 5 wire barbed wire with T-posts roughly on 15 ft
> centers. I was thinking of attaching extensions to the T-posts to get
> more elevation for the Beverage as the T-posts' tops are at about 4 1/3
> ft above ground. If te antenna were to pass by a gate it would have
> to be elevated to at least 10 ft for a distance of 20 ft or so to allow
> for gentle bends.
>
> I am in a zone listed as 30 mmhos/meter conductivity as depicted by the
> recently discussed map and do well with a Hy-Gain Hy-Tower multi-band
> vertical atop a metal barn with no radials, just the barn as counterpoise.
>
> I think maybe I need to study Beverage antennas significantly more
> before committing much time and material to any "large scale"
> experimentation. If a shielded magnetic loop would do nearly as well it
> might be a better choice for the next experiment after the two in
> process tower projects.
>
> Patrick NJ5G
>
> On 2/10/2016 10:23 AM, Richard (Rick) Karlquist wrote:
> > On 2/10/2016 6:56 AM, Patrick Greenlee wrote:
> >
> >> Now regarding Beverage antennas... Please excuse my ignorance (The
> >> cowboy philosopher Will Rogers said, "We are all ignorant, just about
> >> different things") but could someone please give me a little detail on
> >> Beverage antennas being poor performers in areas of higher soil
> >> conductivity? I have the real estate (160 acre 1/2 mile by 1/2 mile
> >> black Angus ranch) and have looked forward to experimenting with
> >
> >> Patrick NJ5G
> >>
> >>> On my own land, I think the FCC map has it right. Verticals work
> >>> great, and beverages barely play.
> >>>
> >>> Rick N6RK
> >>> _______________________________________________
> >
> > Well, you have me beat; I only have 20 acres, 1/4 mile by 1/8 mile.
> > When I first acquired the property, one of the first things I did was
> > to put up a 1/4 mile long beverage (about 1300 feet). It ran
> > east and west, conforming to the property, which conveniently
> > allowed me to test it on 2.5 MHz using WWV in CO and WWVH in HI.
> > I got the wire installed, but had not put in the termination resistors.
> > I was anxious to listen to it, so I tried it unterminated by
> > carrying a radio and gel cell the the back of the property. To
> > my surprise, it heard WWV well, and was deaf to WWVH. I then moved
> > the radio to the east end, and the result was that it heard WWVH
> > well, and was deaf to WWV. The beverage was self terminated!
> > Like a 2 meter dummy load consisting of 100's of feet of small coax. I
> > eventually did an experiment where I put a relay at the 400 foot
> > point of the beverage and A/B'ed a 400 ft length vs 1300 feet.
> > The extra 900 feet was doing nothing other than acting as a
> > ~500 ohm termination resistor. There was no change in received audio
> > as the relay was switched. I confirmed this by exciting the beverage
> > with a signal generator and measuring the current along the length.
> > Sure enough, the current was significantly attenuated after 400 feet.
> > The result is that beverages are too short to work well on 160 meters.
> > They start to play on 80 meters. On 40 meters, they are "magic"
> > listening to long path to Europe in the morning, because they are
> > "long" on that band.
> >
> > Rick N6RK
>
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