I can only speak from seeing the results of the K3BU(VE3BMV) Razor beams.
Yuri blew away the competition
on the single band he selected to compete in the CQ WW 20 years ago. The
razor beam is a Quagi on a long boom.
Yuri put these up special for the contest. I can attest to the problems
involved as in 1970 CQ WPX SSB I used a 7 el 10 meter beam
from the first issue of Ham radio magazine. With the beam at 70' I was the
only stateside signal into Northern EU for hours on end
(quoting SM5BLA). I put the beam up just for the contest...and its work
especially if doing alone as Yuri did.
I'll bet his razor beams (Quagi) had outstanding gain for the boom length.
73 Dave K4JRB
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