[BC] Isotron AM Antennas
wmroradio at bellsouth.net
wmroradio at bellsouth.net
Fri Feb 20 09:25:15 CST 2009
Sounds like this antenna is a piece of junk and no use for an emergency for an AM station. My engineer is putting up a temporary 1 wire, vertical unipole type antenna to get me back on the air today, until my unipole kit comes in.
Pray and wish me luck fellas, I've been of for almost 10 days now. I was going to file an STA today, but I'll wait to see what happens today first. Hope to be back on. Thanks for the advice! My tower guy and engineer will be here in one hour.
Best Regards,
Scott
--
Scott Bailey
President/General Manager
WMRO-AM, Magic 1560
Gallatin, TN
-------------- Original message ----------------------
From: Ron Youvan <ka4inm at tampabay.rr.com>
>
> > Isn't the Isotron based on a resonant LC circuit? Granted it's very
> > high q and lossy.
>
> One of my HAM clubs tested the 40 meter (7 MHz.) version of the Isotron
> antenna several years ago. (far field) by AReU in Brandon Florida
> The Isotron measured ten dB below the reference antenna which was a
> 30' long 3" diameter aluminum tube over eight 30' long radials.
> This is about the same as the best of several mobile antennas mounted on
> cars/trucks over the same radial system.
> Used by apartment dwellers this would be superior to a "HAM stick" dipole
> stuck out on/from the balcony.
> No antenna tested came close to the reference antenna, the test was for
> vertical antennas only.
> --
> Ron KA4INM - For perfect happiness, remember two things:
(1) Be content with what you've got. (2) Be sure you've got
> plenty.
>
>
>
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