Re: And what of the FCC?
---------- Forwarded message ----------
Date: Thu, 25 Sep 1997 22:27:21 +0000
From: Greg Leyh <lod-at-pacbell-dot-net>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: And what of the FCC?
Julian Green wrote:
> My first coil resonated at 220KHz which is on the LW band of a domestic radio.
> I did a walk test and at close range (20 meters) I could tune into the coil.
> At 150 meters - zippo.
Given R. Hull's and your experiences with measuring RFI,
it would seem that the radiation from a tesla coil is
almost entirely 'near-field', as opposed to the radiated
field from a quarter-wave antenna.
There is some hope then for future coils, if the RFI can
be counted on to die away within 100 coil lengths distant
from the TC.