I cannot address all your concerns, but I am a big advocate for a single
point ground...especially at the station equipment. Since your antennas are
so far way, I would put in a ground at the base of the tower as well.
But...I digress...
I have learned through the school of hard knocks to ground all your
equipment to a single point. Don't use a buss bar type ground behind the
desk. Ground everything to the same point and then ground that point to a
ground rod. Keeps ground loops from occuring....so I'm told...so I have
experienced.
I would drill a hole in the concrete floor and drive a ground rod as deep as
you can go. You might consider welding two ground rods together and place
16 feet in the ground instead of just 8 feet.
Again, this is just one suggestion. There are many schemes out there.
Lee
k0wa@southwind.net
At 11:44 AM 10/31/97 -0600, you wrote:
>I have a question relating to station grounding... we are in the process
>of setting up a ham radio club where I work, and we hope to be able to do
>some contesting and DXing from the station. I have read a lot of helpful
>notes here on grounding, but nothing that is similar to this station
>layout.
>
>The shack will be in a room located in a very large industrial
>building with a very large concrete slab. The tower and HF antennas
>will be a loooong way away - about 1400 feet away, hopefully at the
>end of some good hardline!
>
>I am about to turn in specs for the room, and want to include grounding.
>What should we use for a shack RF ground - is a ground rod driven into the
>concrete sufficient? It is probably 50 or 75 feet from the shack to the
>outside of the building, so I am afraid that a ground rod outside the
>bldg would not be very effective at HF.
>
>Also, should we have a separate ground for lightning near the tower
>or where the hardline enters the bldg?
>
>Any help appreciated!
>Tnx and 73 de Steve WQ5G
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