Roy Lewallen wrote:
The current reported by EZNEC isn't referenced to source phase. The
phases of all currents and voltages -- wire, source, and load -- are all
referenced to the same arbitrary point. Source phase can be assigned by
the user to any value relative to this point.

I'm sorry, Roy, I just changed the source phase in a single
source system and changed nothing else. The reported phase of
the antenna currents changed in step with the source phase.
Since all you did was provide a GUI interface to NEC, might
it be possible that you don't understand how NEC works?
--
73, Cecil http://www.w5dxp.com

Cecil Moore wrote:
Roy Lewallen wrote:
The current reported by EZNEC isn't referenced to source phase. The
phases of all currents and voltages -- wire, source, and load -- are
all referenced to the same arbitrary point. Source phase can be
assigned by the user to any value relative to this point.

I'm sorry, Roy, I just changed the source phase in a single
source system and changed nothing else. The reported phase of
the antenna currents changed in step with the source phase.
Since all you did was provide a GUI interface to NEC, might
it be possible that you don't understand how NEC works?

Cecil,

I think you are misunderstanding Roy's response. If the currents were
referenced to the source phase, they would not change when the source
phase was changed. That observable fact that the antenna current phases
do change when the source phase is changed supports Roy's explanation
completely.

73,
Gene
W4SZ

Gene Fuller wrote:
If the currents were referenced to the source phase,
they would not change when the source phase was changed.

You cannot be serious.
--
73, Cecil http://www.w5dxp.com

Cecil Moore wrote:
Gene Fuller wrote:
If the currents were referenced to the source phase,
they would not change when the source phase was changed.

You cannot be serious.

I am dead serious. You need to think about this a bit more.

Why would something "referenced to the source phase" change when that
source itself was changed? This is no different than the elementary
example of walking in a train car. One's speed relative to the seats
does not change simply because the train is traveling at a different
speed on the rails.

What does your IEEE dictionary say about the meaning of "referenced to"?

73,
Gene
W4SZ

Gene Fuller wrote:
Why would something "referenced to the source phase" change when that
source itself was changed?

In my EZNEC examples the source current reference
phase is zero and all the currents at the various
points are referenced to that zero source phase.

If the source current phase is changed, the phase
of all the currents at the various sampling points
change.

In TravWave.EZ, the current is sampled by a zero
ohm load in segment 10 of the wire.

Source phase Seg 10 phase
0 deg -47.82 deg
-10 deg -57.82 deg
+10 deg -37.82 deg

The current in Seg 10 is clearly referenced to the
phase of the source and obviously lags the source
phase by 47.82 degrees.
--
73, Cecil http://www.w5dxp.com

Cecil Moore wrote:
Gene Fuller wrote:
Why would something "referenced to the source phase" change when that
source itself was changed?

In my EZNEC examples the source current reference
phase is zero and all the currents at the various
points are referenced to that zero source phase.

If the source current phase is changed, the phase
of all the currents at the various sampling points
change.

In TravWave.EZ, the current is sampled by a zero
ohm load in segment 10 of the wire.

Source phase Seg 10 phase
0 deg -47.82 deg
-10 deg -57.82 deg
+10 deg -37.82 deg

The current in Seg 10 is clearly referenced to the
phase of the source and obviously lags the source
phase by 47.82 degrees.

Isn't that exactly what I said? What you are showing above is the change
with respect to some arbitrary point, not with respect to the source.

The antenna current phase does not change at all wrt the source.

Gene Fuller wrote:
The antenna current phase does not change at all wrt the source.

That's my argument and appears to be the opposite of
what you have been saying.

The antenna current phase is referenced, i.e. relative,
to the source phase. Are we using different definitions
of the word "referenced"?

Please provide your definition for "referenced".

Let me say the same thing in a different way. The
difference between a particular antenna current phase
and the source current phase is fixed no matter what
reference phase is chosen for the source current.
--
73, Cecil http://www.w5dxp.com