RadioBanter - View Single Post

March 17th 06, 02:14 AM posted to rec.radio.amateur.antenna

Cecil Moore wrote:
wrote:

Just because EZnec agrees with the phase measurements it
doesn't mean the current measurement was even remotely

close to being correct.

I officially withdraw my measurements as evidence in this
debate and instead substitute the EZNEC results, provided
by W7EL, as evidence.

What does it mean that EZNEC agrees with my possibly
flawed phase measurements? What does it mean that EZNEC
agrees with my argument and disagrees with yours?

How does one use a signal with unchanging phase to measure
the phase shift through a coil or wire? Forgive me if I'm
wrong, but seems to me, you have claimed to have done
exactly that. Please explain how you did that so we can
judge whether your measurements were also flawed.

Doesn't the change in distance between a pair of current nodes (or
voltage nodes) in the standing wave pattern on a straight conductor
that straddle an inserted inductor show its effective electrical
length? I would think that as long as a fairly pure standing wave
could be arranged with the inductor inside it, this method would allow
the effective electrical length to be measured at arbitrary
frequencies that are not at all related to the coil's self resonant
frequency. It seems that this is nearly what you are demonstrating
with your EZNEC examples. Electrical length (propagation distance) is
collapsing into the inductor.