Topband: "T"-Top Vertical Antennas
Paul Christensen
w9ac at arrl.net
Sun Jul 26 08:54:30 PDT 2009
> "Paul, There's still some discrepancy here. I have the Radio Club of
America commemorative publication on the 1921 tests. In it
Amy and Burghard describe the station antenna:..."
Going back that far, there's bound to be some discrepancies about the 1BCG
feed detail, but several references point to a "T" feed. In fact, the same
Radio Club of America website describes: "the antenna system consisted of a
"T type cage with a 100 foot flat top 70 feet high." Reference to the "T"
would imply a center feed and not an end feed as implied by Amy and
Burghard.
I've seen several photos of the ground detail, and just one of the antenna.
Try as I could, I cannot locate where it is to take a better look at it.
I'll keep searching my materials to see if there's a better photo of the top
portion.
Incidentally, beginning on p. 52, Edmund Laport discusses early use of
elevated radial counterpoise systems in "Radio Antenna Engineering."
LULU.com offers a free download of the book, supposedly now out of
copyright:
http://www.lulu.com/content/paperback-book/radio-antenna-engineering/159004
Paul, W9AC
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