Re: DRSSTC RF Ground

["Tesla list" <tesla@xxxxxxxxxx>]

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