[TowerTalk] Laws of Physics Repealed!

[Larry Banks]

Thanks Don for the memory,

I bought a Gotham V-80 vertical as a junior in High School shortly after I 
received my novice in 1962.  I assumed that the ad must have been honest. 
My best 80M novice DX was an OO report on 40M "out-of-band."  (2x the 80M 
novice freq. WAS NOT in the 40M novice band..)

I've never believed antenna ads since!

73 -- Larry -- W1DYJ




-----Original Message----- 
From: Donald Chester
Sent: Friday, October 23, 2015 16:13
To: towertalk at contesting.com
Subject: [TowerTalk] Laws of Physics Repealed!


First there was the Gotham Vertical.  Then the infamous Max-Com automatic 
antenna matcher.  Now, Cushrcaft is in on the action.

"R9"
vertical.  Low angle radiation gives incredible, easy, world-wide low
band DX on 75/80m and 40m, plus it covers 30 through 6m with low
VSWR on all bands, with broadband matching transformer; no antenna tuner
needed. Low profile blends inconspicuously to keep your HOA happy.  31.5
ft tall.  Best of all, NO RADIALS NEEDED!!!

Only $639. Just plug in your plastic radio and talk, talk, talk!

See November, 2015 QST, page 2.

Amazing
that hams (or maybe I should say HAMs) swallow that crapola.  31.5 ft
is only an eighth wavelength on 75/80m. The base impedance of a 1/8
wavelength vertical is about 12 ohms. No matter how much gimmickry such
as stubs, loading coils, toroidal transformers and porcupine spikes are
added, that thing will basically be a dummy load unless it is used with a
SUBSTANTAL radial ground system.  A couple of 8' ground rods won't cut
it.

I had always considered Cushcraft, which has been in the business for 
decades, a reputable outfit, but this makes me wonder.


Don k4kyv

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