Re: NEC-LIST: Significance of ?/10 segments in dipole design

Actually, you need to be careful in the assumption about the
leveling off of the impedance. As I recall, NEC tends to use the
thin-wire approximation. If you continue to increase the number of
unknown, it will level off but never converge. The problem has to
do with the source modeling as the number of unknowns is increased.
 This was documented in an APS paper back in the 70s. An easy way
to see this phenomena is to plot the resistance or reactance as a
function of (1/N) as the number of segments N is increased.

However, in general your comment is correct. Bill

> Yes lambda/10 would be the upper limit. You can explore this by
> modeling the dipole with an increasing number of segments. At some
> point the impedance and resonant impedance will level off.
>

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