Re: Counterpoise?

This might not be the greatest thing, but you could put a self-resonant
(quarter-wave) coil at the coil frequency on instead of a ground. This would
make a fairly high-Q counterpoise, and would be effectively a double-ended
coil. Just don't touch the end of the counterpoise, because it'll be VERY
hot. Probably loop it off, to prevent corona, and be SURE to put it out of
strike range of the coil. Make it double strike range, to be safe. I may
have to do this myself, since I'm also building a coil for school, and they
might not appreciate it if I hammered my ground rod into something

           --Mr. Postman (Doug Brunner)

-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Friday, December 04, 1998 4:21 AM
Subject: Counterpoise?

>Original Poster: Travis Tabbal <bigboss-at-inquo-dot-net>
>Thanks to everyone that helped with my previous really long post. :)
>I ran into another question....
>I have been reading the archives and there was mention of using a
>counterpoise instead of an earth ground for a coil.
>This is of interest to me since I am currently building this for use in
>schools and such where I may not have a good RF ground set up. I will
>build one for my home, but I may not be able to guarante a good one
>elsewhere. The first run away from home is scheduled in late January and
>it gets real cold arround here that time of year. Any sugestions? I have
>asked to be located near an exit from the building to I can attempt to get
>a ground.. I may be able to get access to a water pipe as well.
>My first thought is to use some more flashing or screening laid out in the
>snow with maybe some rock salt thrown on it to help conduct (melt the
>snow a bit). Or see if I can get a decent ground from a water pipe.
>Any help appreacted, driving ground rods into frozen ground doesn't sound
>like fun to me.