On Wed, 11 Oct 2006 00:33:58 GMT, Owen Duffy wrote:

On Tue, 10 Oct 2006 17:17:33 -0700, Richard Clark
wrote:

On Tue, 10 Oct 2006 23:29:22 GMT, Owen Duffy wrote:

I would appreciate comments

Hi Owen,

Maybe use a log-log scale?

It is if you think about it, -20log(Vout/Vin) vs log(Freq).

Hi Owen,

I suppose so, however, when I see a sigmoidal curve, it begs a
different representation which, to me, reveals an underlying concept
(whatever that might be). Even with the redundancy of log
representation of a log value, its straight line representation may
worth consideration. I don't know why at this pass. This is just a
preference I would consider.

I am really interested in modelling accuracy issues like
segment length,

Generally self-driven by the results of successive modeling of
increased segmentation approaching an asymptotic level. The implicit
question would be: "Does the addition computational load warrant the
increased count?"

right angle corners,

Area dominates such considerations, practicality is also significant,
results generally varies by little. As Reggie would offer, it is a
trade-off in the amount of wire, and spacing that would tend to
increase loss, and give rise to self resonance. He offered very good
advice on the size of coils, and this may have occurred before you
joined the group. I'm sure a review of his web page would reveal an
"unzipped" executable, but may lack the discussion he offered here.

load placement etc.

An issue of balance (physical placement mimicking literal field
balance).

73's
Richard Clark, KB7QHC