Hi Kenny,
A single 580 foot Beverage is an excellent 160, 80 and 40 meter antenna.
I still have three of them (NE. S. W) even though I also have 8-circle
arrays for 160, 80 and 40 meters.
I've never used a pair of staggered Beverages with 350 foot broadside
spacing, these are ideas based on no specific experience with your
proposed configuration.
The offset shouldn't matter as long as you compensate for it by selecting
optimum unequal length transmission lines to feed the Beverages,
creating the equivalent of 110 feet of free space phase delay (about 100 feet
of RG-6). Your favorite antenna modelling program will help you select
the optimum transmission line length, but its not critical at all.
Alternatively, you could use a close spaced pair of staggered Beverages
that improve the front-to-rear ratio, but the beamwidth of the main lobe
isn't narrowed like a broadside pair of wide spaced broadside Beverages.
Good luck!
73
Frank
W3LPL
----- Original Message -----
From: "Kenny Silverman" <kenny.k2kw@gmail.com>
To: "160" <topband@contesting.com>
Sent: Sunday, October 18, 2020 3:20:17 PM
Subject: Topband: Phased staggered beverages
My new house has 6 wooded acres in roughly a square. For EU, I was hoping to
get a pair of phased 500’ beverages spaced 350’ apart. To do that, one of the 2
beverages will be 110’ in front of the other due to the lot-line orientation.
Regardless of the phasing I’m modeling, the side and back lobes are not to my
liking. Is the 110’ forward stagger too far? I can get a single 600’ beverage
to Eu which has a marginally worse RDF (0.35 less) than the
not-perfect-staggered-pair but is much simpler and takes up less land.
How much RDF increase does it take to be audible?
Regards , Kenny K2KW
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