Re: DRSSTC RF Ground

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "marc" <xp88@xxxxxxxxxxxxx>

Thanks Robert H! I'm going to take your (and Terry's) advice. Home depot
sells a nice copper grounding rod 8' long... enough for two! (about
$13.00). Bring a hack-saw if you want to fit it in a small car. I'm going
to connect it with #4-0, 2000 strand flexi welding cable.

Thanks much, Marc


> [Original Message]
> From: Tesla list <tesla@xxxxxxxxxx>
> To: <tesla@xxxxxxxxxx>
> Date: 8/7/2005 3:16:21 PM
> Subject: Re: DRSSTC RF Ground
>
> Original poster: robert heidlebaugh <rheidlebaugh@xxxxxxxxxxxxxx>
>
> Ground in a garage. Dry hard concreat is a poor ground, even a counterpois
> mat is poor. Just drill a 1/2 in hole in the floor and drive a ground
stake
> through the floor. Make shure you pick a location where you will not trip
> over the rod near a wall etc. If you don't nead the ground any more just
> remove your wire connection and drive the rod flush with the floor. No
> lasting problem.
>       Robert   H
> --
>
>
>  > From: "Tesla list" <tesla@xxxxxxxxxx>
>  > Date: Tue, 02 Aug 2005 22:37:29 -0600
>  > To: tesla@xxxxxxxxxx
>  > Subject: Re: DRSSTC RF Ground
>  > Resent-From: tesla@xxxxxxxxxx
>  > Resent-Date: Tue,  2 Aug 2005 22:36:55 -0600 (MDT)
>  >
>  > Original poster: Terry Fritz <vardin@xxxxxxxxxxxxxxxxxxxxxxx>
>  >
>  > Hi,
>  >
>  > At 05:00 PM 8/2/2005, you wrote:
>  >
>  >> Hi, I posted this subject a few weeks ago with no responses. I would
>  >> like to run a large DRSSTC (DAN M's) in my garage.
>  >> Would the iron "lally" columns going into the cement floor make a
>  >> good RF ground? I would think so??
>  >
>  > Probably not.  Dry concrete is not a good RF conductor at all and the
>  > dirt under the slab is probably pretty dry.  If there are bolts, they
>  > probably only go into the concrete a few inches.  If the conduction
>  > is poor, the RF my go up into the roof which is never good.
>  >
>  > Go over to Radio Shack or the hardware store with $7 and get a REAL
>  > ground rod you don't have to worry about.  You don't have to pound it
>  > all the way in.  2 or three feet in damp ground is fine.
>  >
>  > You could probably use a simple copper pipe too.  I would avoid iron
>  > or magnetic metals since they hate RF.
>  >
>  > Cheers,
>  >
>  > Terry
>  >
>  >
>  >>
>  >> Thanks much, Marc
>  >>
>  >>
>  >> <mailto:xp88@xxxxxxxxxxxxx>xp88@xxxxxxxxxxxxx
>  >>
>  >>
>  >
>  >
>