[TenTec] RF Ground

Bob McGraw - K4TAX RMcGraw at Blomand.net
Sun Apr 5 20:14:42 PDT 2009


Everything inside the house should reference the ground and neutral at the 
service entrance or breaker panel.  Since there is supposed to be a driven 
ground at the service entrance, I could care less about the fire hydrant or 
well casing.  Water lines are no longer accepted as a suitable ground for 
anything.  And if your well casing is plastic, as many are today, it is 
non-conductive.

However, more important, all driven grounds on a property served by a single 
service entrance, must be bonded back to that service entrance ground. 
There's no exceptions to this rule.  Failure to initiate this procedure 
produces a highly dangerous condition.

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


----- Original Message ----- 
From: "Jim WA9YSD" <wa9ysd at yahoo.com>
To: <tentec at contesting.com>
Sent: Sunday, April 05, 2009 6:34 PM
Subject: Re: [TenTec] RF Ground


> If you were checking grounds in a newly developed project with new houses, 
> what would you use to check the grounding to each house?  The fire 
> hydrant.  You would run heavy 00 welding cable from the hydrant to each 
> house and measure the resistance.  Out in the country you would use your 
> well casing as your reference and measure resistance to various points. RF 
> as far as I am concerned is less than 1 OHM.  Electrical standards is 25 
> ohms or so.  Every thing radiates so you have to take other measures.
> Keep The Faith, Jim K9TF/WA9YSD
>
>
>
>
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