On Wed, 15 Mar 2006 17:30:10 GMT, Cecil Moore wrote:

Richard Clark wrote:

Cecil Moore wrote:
Your 11.4 meter value assumes a VF of zero.

A quarter wave tall, two inch diameter coil is not resonant - at least
not at a fundamental in the 80M band.

Nobody said it was resonant.

You seem to be shy of many details from your reference. VF of zero
indeed.... You can't even plug-n-chug your own referred equations.
Such are the hazards of a Xerox research method.

Hi Tom,

As you, I didn't expect to see any concrete numbers from that last
flurry of equations. I don't see how with his free mix of quarterwave
substituted as resonant to backfill an argument of a short coil
justified as a long one.

Tom's simple example, a 2 inch diameter coil of 10 inches with 100
turns seems to have buffaloed his finding the Velocity Factor or
Characteristic Impedance. And how would it compare in contrast to
Reggie's formulas? That would seem to invite discussion of results
instead, which would have collapsed this opus to a thread of three
postings.

As such, it serves only to entertain on a rainy morning (your weather
may vary - but in Seattle, never).

73's
Richard Clark, KB7QHC