Owen Duffy wrote:
Cecil Moore wrote:
Please see http://www.qsl.net/w5dxp/current.htm
I refer to the diagram in the section entitled "What EZNEC Says About
Current Distribution Using Inductive Loading Stubs"
You use the diagram to assert that there is "not a lot of difference
between inductive loading stubs and loading coils" by comparing the
current distribution with another case.
You show graphically the current on each side of the stub. You do not
show the current in each wire of the stub or the sum of the currents
in the stub.
The currents in stubs cannot be displayed very well at full size in
EZNEC just as the currents in coils cannot be displayed very well.
Maybe an enlarged view would show it. I will try to do that.
EZNEC calculates the currents in each wire of the stub? Aren't those
currents a relevant detail that you have omitted from the diagram.
Remember the present discussion is about the ability to use standing
wave current phase to measure the electrical length of a wire or a
coil. I have run the currents that you mention. The phase of the current
is almost constant through the stubs. The phase of the current is
almost constant through the coils. Would you like to see a list
of the current at points through the stub Vs the current at points
through the coil?
--
73, Cecil
http://www.qsl.net/w5dxp