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Cecil Moore · July 11th 06, 08:49 PM posted to rec.radio.amateur.antenna

wrote:
We're talking about the instantaneous common mode current of the real
system. That's the current actually flowing in the same direction in
both legs of the stub.

But standing waves of common mode current can
and probably do exist.

The amplitude of the common mode current varies
depending upon its location in the distributed
network. At a common mode standing wave node, the
common mode current may measure zero. 1/4WL away, it
may measure an appreciable magnitude. I have
measured such on my own transmission lines.

I suspect a dead short forces a common mode
standing wave node. What else could possibly
happen?
--
73, Cecil http://www.qsl.net/w5dxp