Re: Halloween Coiling and the FCC

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>" <evp-at-pacbell-dot-net>

Tesla list wrote:
> 
> Original poster: "Dave Hartwick by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <ddhartwick-at-earthlink-dot-net>
> 
> Mark,
> Yes, but is not coil  harmonic content quite rich? Were this not the case,
> Dan's ham experiment would not have yielded such results. Of course, Dan did
> not mention the band(s) on which the experiment was performed. But still....
> Dave

	Several years ago someone posted some harmonic measurements here.  As I
recall, the harmonic levels weren't very big.  However, since the
radiation efficiency of a coil this short (compared to a wavelength)
increases as the square of the frequency, so harmonic radiation levels
will be larger than might otherwise be expected.  Can't someone with
access to a spectrum analyzer and a coil in the same place make some
measurements and report again? 

Ed