Re: [TenTec] RF Ground

["Ron Castro" <ronc@sonic.net>]

I think 18" is overkill.  In the broadcast industry we use 4" strap, which 
considering today's cost of copper is very expensive.
          Ron  N6IE
      www.N6IE.com

----- Original Message ----- 
From: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>
To: <Gary@doctorgary.net>; "Discussion of Ten-Tec Equipment" 
<tentec@contesting.com>
Sent: Monday, April 06, 2009 7:23 AM
Subject: Re: [TenTec] RF Ground


> Gary:
>
> Here's what Jerry had to say and I agree:
>
> quote:
>
> If you really want lightning and RF grounding, those ground sources need
> to be connected together with wide  copper strap. 18" is a nice width.
> Otherwise the inductance is too much to be totally effective.
>
> 73, Jerry, K0CQ
> end quote:
>
> The 18" copper strap that Jerry suggests would be nice but would also be a
> nice investment today.
>
> In my case I use a piece of 1/2" copper refrigeration tubing to 
> connect/bond
> [actually via CAD WELD} all of my driven grounds.   There's 3 at the base 
> of
> the tower in a ring and 1 at each corner of the house.  The house has a
> series of lightning rods across the top.  All of these points are 
> connected
> together.  Also, the mast out the top of the tower has 2 bonding flexible
> straps between the mast and the tower sleeve.  This assures that the mast 
> is
> bonded to the tower and the path is not through my rotor.
>
> Yes, in your case, the path between your service ground and your antenna
> ground is through your station equipment via the coax.  Not good!
>
> 73
> Bob, K4TAX
>
> .
>
> ----- Original Message ----- 
> From: "Gary Smith" <Gary@doctorgary.net>
> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
> Sent: Monday, April 06, 2009 5:05 AM
> Subject: Re: [TenTec] RF Ground
>
>
> > Hi Bob,
> >
> > My antennae use the same radial field of 60 or so 130' radials. The
> > radial plate is 360' from the house. The only connection between the
> > house and the radial field is via the coax shield. Are you suggesting
> > I run a length of additional wire from one of the radials to the
> > grounding point of the service entrance ground rod?
> >
> > Gary, KA1J
> >
> > > As to having a RF ground,  a ground radial system below your antenna is
> > > the
> > > reference point for that antenna.  Several antennas can share the same
> > > radial system.  Also that radial system must be bonded back to the
> > > service
> > > entrance ground.
> > >
> > > 73
> > > Bob, K4TAX
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