Ian White GM3SEK wrote:
Cecil Moore wrote:
A software model that blows up when R=0 is perfectly
acceptable in the real world. It is a software bug,
not a statement on reality.

It's only your model that blows up. If your model sees lumped-component
behavior as an impossible singularity, that cannot be correct.

It was a statement about a hypothetical model, Ian.
The model that I am using does NOT blow up. The model
that W8JI used is the one that blew up.

Other people's models of antenna loading do not have this problem.

A 3 ns delay through a 2", 10 TPI, 100 T coil at 4 MHz
is not a problem?????

In practical terms, a lumped-inductance model will take you straight to
a buildable prototype.

Yes, but the person using it will not understand reality
as witnessed by the technical impossibilities asserted on
this newsgroup and elsewhere. Wouldn't you really rather
understand the physics than put blind trust in imaginary
components that do not and cannot exist in reality? Isn't
it ridiculous to use the lumped inductance in EZNEC to try
to prove that there is no delay through a coil? Isn't it
ridiculous to assert that reflected waves contain no
energy just because you can't figure out where that
reflected energy goes?
--
73, Cecil http://www.w5dxp.com