Re: Halloween Coiling and the FCC

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

Original poster: "Laurence Davis by way of Terry Fritz <twftesla-at-qwest-dot-net>" <meknar-at-hotmail-dot-com>

I've walked around my neighborhood with a longwave
radio that tunes to the frequency of my coil, which
is around 220khz.  The coil is in the basement.  While walking around I
have about a 3 block radius of perceptable noise from the coil.
Right now I'm using 12kv/60ma nsts.  I was using 12kv/120ma until they died, 
but even then the transmission range was near the same.

I have a partial faraday cage around the coil. essentially a box without a 
bottom and a 3ft wide door in the front. hardly a "cage" and most likely has 
little reduction in the transmission.  Just thought I'd mention it anyway 
though.

larry.
...Oh, the radio is a radio shack dx398 shortwave radio which has a long 
wave on it.  perhaps I will try on a higher harmonic and see how it goes.

>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Re: Halloween Coiling and the FCC
>Date: Wed, 09 Oct 2002 17:25:58 -0600
>
>Original poster: "davep by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
><davep-at-quik-dot-com>
>
> >>My impression is that HAMs used to work Spacelab with
> >>1W ish Walkie talkies?
>
> > No problem there, at VHF/UHF.  My comment referred to TC
> > operating frequencies.
>
>	Welllll.  I suggest that TC's operate (as the saying
>	is) DC to Daylight.  (Considering UV from the gap:
>	may not be that far off...)
>
>	I STILL have not seen (have i missed it?)
>	which Rx freq was used in the 'my friend the ham
>	heard me 20 miles away' test.  I'd be interested
>	While the nominal freq may be 100KHz there is
>	substantial power elsewhere, unless, as noted,
>	specifically suppressed.
>
>	Hint:
>	Nominal TV input sensitivity is in the microvolts
>	range. (varying from set to set....  thats a good
>	starting point.)  Converting from that to power
>	gets complex, but can be done.
>
>	Years ago, a friend swore he could pick up a weld
>	shop 10 miles away on TV.  Dunno fer sure...
>
>	best
>	dwp
>
>...the net of a million lies...
>	Vernor Vinge
>There are Many Web Sites which Say Many Things.
>	-me




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