Well, I'm not wealthy. But we do have 270 acres of forest-land covered
with nothing but trees. So a rhombic or two sounds really good, which
never occurred to me before. Thanks, Don!
Across the field from my shack, maybe 600', is a row of 90' pine
trees. More trees on either edge of the field for the vertices. And the
feed could be right at the shack. How important is symmetry?
I've been deciding how much Wireman #534 to buy, so it sounds like I
should go for at least 1000'! Still will need a lot of support line,
though.
david, in the forests of Maine
KC1DNY
On 9/13/2019 6:24 PM, Mike Markowski wrote:
Can you expand on this, Ken, or if easier, a reference? I'm curious
what tradeoffs are made. I used a rhombic at Ft. Monmouth, NJ before
the Army base was closed in 2011, and used to boom into Europe and
Russia. It was amazing. I also got copies of WWII manuals on rhombic
construction while there. You know, just in case I became wealthy
with tens of acres of land. :-)
73,
Mike ab3ap
On 9/13/19 5:57 PM, Ken G Kopp wrote:
Rhombic antennas derive their well-known gain by "throwing away" some of
the design's gain. Ditto for the infamous "inverted vee". Use is
made of
the lobes from the four wires while disregarding others.
73 !
Ken Kopp - K0PP
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