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Old 26-Jul-2013, 10:40 PM   #7
GroundUrMast
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Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
If you opt to add a ground rod, you'll need to use #6 AWG or heavier copper to bond (tie) the grounds rods together. This is to provide for the possible current that could occur during a fault other than just the antenna system... the new rod becomes a part of your power system ground.

An alternative is to run the mast ground to the existing ground rod using #10 AWG. Then, run the coax to a point close to the existing ground (10' or less as the wire runs) where you would locate the grounding block. This option avoids the cost of a new ground rod and a long run of #6.
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If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)

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