Topband: BOG height

[Andrey Fedorishchev]

Guy, et al

At Lowbandsystems we have many feedbacks and questions from our customers
around the Europe and Russia.

U, L bends following property lines, intentional bends to have “two
direction” beverages, part of the beverage wire buried  under the public
road and other funny stories.

But most  astonishing case was a guy who put his 800’ beverage wire into
his radio room at the basement, and used some existing steel pipes as
grounding at the feed point right next to his receiver TO REDUCE losses in
the feedline !

73, Andrei RA6LBS




вс, 4 авг. 2019 г. в 22:18, Guy Olinger K2AV <k2av.guy at gmail.com>:

> Hi Mike, et al.
>
> I have personal acquaintance and knowledge of a number of hams who have put
> down a BOG that was anything but straight. Some with 90 degree bends,
> another shaped like a Z, and less extreme bends. The end of those small
> lot, weird property situational BOG attempts, is that a few didn't do much,
> maybe nothing. But some significantly improved signal ratio of incoming
> desired 160m signal to local noise. This appears to invoke a degree of
> something clearly seen on straight BOGS where local noise from broadside
> the BOG is reduced significantly. Theoretically some could object that
> 20-25 dB side rejection is reduced by a bend, and it surely IS reduced.
> HOWEVER...
>
> ... And a big however, even if only 4-6 dB of the reduction remains, a
> general reduction of 4 dB noise on a given 160 signal will make a big
> difference in results, in who he hears and hears not. Theoretical thought
> and practical thought sometimes give one different answers to "To Do or not
> to Do, that is the question". Theoretical should serve the practical, not
> the other way around.
>
> Sometimes our beloved reflector mob is inclined to entirely dismiss
> anecdotal material from the field, dismiss anything that was not derived
> from a controlled lab-style experiment. The lab-style experiment is good to
> establish behaviors as fact, principles to use. BUT the anecdotal tells us
> how it plays in the real world, where the lab experiment derived
> implementation rules are often simply not possible.
>
> In the end, one needs to understand the factors that bear upon performance,
> AND understand them WELL, but then just go try stuff out, even if some
> aspects of the lab version have to be bent or ignored. Try things.
> Personally I will take 4-6 dB improvement on hearing Europe, and it will
> show up in my contest scores.
>
> 73, Guy K2AV
>
> On Sun, Aug 4, 2019 at 1:59 PM Mike Waters <mikewate at gmail.com> wrote:
>
> > Based on questions I've received over the years from hams who found my
> > Beverage antenna page, there is an an additional problem.
> >
> > Some hams just do not grasp that:
> > (1) Beverages are directional, like a Yagi is.
> > (2) A Beverage has to be reasonably straight. Dozens of folks want to put
> > it over an existing fence, where it winds up being an L or U shape.
> >
> > 73, Mike
> > www.w0btu.com
> >
> > On Sun, Aug 4, 2019, 12:34 PM FZ Bruce <k1fz at twc.com> wrote:
> >
> > > ...
> > > The problem with the BOG is not the antenna, but new users who try to
> > > use above ground Beverage information to make it work..
> > >
> > _________________
> > Searchable Archives: http://www.contesting.com/_topband - Topband
> > Reflector
> >
> _________________
> Searchable Archives: http://www.contesting.com/_topband - Topband
> Reflector
>
-- 
Andrey Fedorishchev,
RA6LBS


http://lowbandsystems.com/