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Steve White wrote:
> I currently have a copper-clad steel rod driven 3 feet into the
> ground for the RF ground. This is as deep as I could drive it.
You may not need to go deeper - consider the skin depth of your
earth/ground material at your operating frequency. No point in
going down more than a skin depth.
> I only run mine outdoors.
> ... I can set it up outdoors in about 10 minutes.
Roll out a chicken wire ground mat early in the set up.
Or perhaps you can use shallower ground rods but more of them,
spread out around the coil.
Your list of things connected to the RF ground didn't include
the secondary base - I guess we can take that for granted.
Certainly the strike rail but others may advise about the other
RF grounded items. RF ground can have some RF volts and
transients (during strikes) relative to the domestic/AC/safety
ground.
> surprisingly it worked the first time that I fired it up.
> I made extensive use of javatc to design this coil.
Those two statements are often strongly correlated. Did you
find the tapping point predicted by JavaTC was close to optimum?
That would be a good sign that everything is working according to
design.
--
Paul Nicholson
http://abelian.org/
--
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