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Old April 20th 06, 09:45 PM posted to rec.radio.amateur.antenna
Richard Clark
 
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Default Current across the antenna loading coil - from scratch

On Thu, 20 Apr 2006 17:45:39 GMT, "Cecil Moore"
wrote:

How does the Vf transition to 0.02 for a resonant coil
occur? That transition is most certainly NOT shown in Fig. 1.


Of course it is shown. Draw a vertical line at 10^-3.
The 10k turns per lamda coil

That is for coil A
has a VF of 0.07.


The 50 turns per lamda

That is for coil B
has a VF of 0.86.


Let's review this response for its pity quotient:

Asked: At one length, one coil exhibits
Vf = 0.02,
reduce the coil length, what length for the SAME coil would that be
to render
Vf = 0.2
for instance?

1. We are not changing frequency;
2. we are not changing diameter/lambda
(nor in fact changing diameter OR lambda);
3. we are not changing pitch/lambda
(nor in fact changing pitch OR lambda).

Answer? Change the coil, change the Vf, and the turns/lamda.

************* W R O N G ! *****************

Draw another pity card and do not pass go.
 
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