"Cecil Moore" wrote in message
...
John KD5YI wrote:
Wake up, Cecil. The 6.75 inch long Texas Bugcatcher coil falls into the
lumped component category (being only .002WL at 75m).

Sorry John, we are not talking about *physical* length
- we are talking about *electrical* length which, like
a piece of coax, depends upon the velocity factor. The
velocity factor for a Texas Bugcatcher coil is ~0.02.


I think any inductor with the same inductance, Q, and self-resonant
frequency will give the same velocity factor and delay as your Bugcatcher. I
don't think that neither the coil nor the "stinger" knows how the inductor
is constructed. I think the slight difference due to radiation from the
Bugcatcher can be ignored since it is small physically.

I think you will measure the same velocity factor with any other coil that
gives the same inductance, Q, and self-resonant frequency regardless of
whether it is wound on air, a toroid core, a ferrite rod, or a beer can. If
so, then that coil will be a distributed component according to you because
it meets the electrical requirements.

John