I tried a 40M OCFD for a while. I gave up on it and went back to a centre
fed dipole instead.
Even on 40M it didn't seem very good and I was plagued with RF getting into
PCs and them shutting down or periferals stopping working. Plus, despite
the hype, it didn't really seem to work well on other bands. The Antenna
analyser was very dismissive, showing resonances outside of the Amateur
bands and, on some that it was supposed to work on, no sign of any resonance
at all.
Dave (G0DJA)
----- Original Message -----
From: "Jim Brown" <j...@audiosystemsgroup.com>
To: <elecraft@mailman.qth.net>
Sent: Saturday, July 05, 2014 2:24 PM
Subject: Re: [Elecraft] A Good Antenna Length?
On 7/5/2014 2:05 AM, David Cutter wrote:
You might consider an off-centre-fed dipole with appropriate balun and
choke.
Not if you're going to run power. An off center fed antenna generates high
common mode voltage, which will fry even the best choke when running
power. I wouldn't consider such an antenna at greater than 100W.
73, Jim K9YC
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