All,

Below is a link to a site that claims to model coax radiation from a dipole.

http://www.smeter.net/feeding/feedpowr.php

I have compared several of the models from this site with other models and they
are close.

I have tried several parameters and have gotten results from a very low level
with a close match to over 90% of power radiated in the feedline when the dipole
resonance is far from the transmit frequency.

We may use this model for a couple of things. It is available and it predicts
radiation. That gives the opportunity to create a test. I for one are willing to
experiment.

Dan


Reg Edwards wrote:
I am truly disappointed with the long-running discourse on balanced
and unbalanced feedlines and the power radiated therefrom. It's been
going on for years.

Nobody, especially poor novices, has ever learned anything from it.

99% of it is bafflegab.

Few of us understand what on Earth is being waffled about. And those
who do, prefer not to waste their time by joining in.

The reason I'm making this seemingly outrageous statement is that
NOBODY HAS EVER QUANTIFIED, not even once, what they are waffling
about. This demonstrates a great ignorance of the subject.

(Remember what Lord Kelvin said about the ability to measure and
quantify what it is you are gabbing about and how that ability is
directly related to what you really know about it.)

Perhaps somebody might be prepared to state the power actually
radiated from feedlines in watts. At least it may create the
impression you know what you are talking about.

It might possibly be at such a low level that, in the great majority
of cases, it's not worth all the megabytes of bandwidth which are
wasted on it.

As an unbiased World Citizen, I now find myself half-way down a bottle
of Merlo, 2000, a produce of France. But I have in reserve some decent
Californian stuff.

May I say how saddened I am to learn about the terrible disastrous
storm which has befallen some of the Southern states.
----
Reg, G4FGQ