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I have 2 18" round dishes, one pointed at 101, one pointed at 119. All 4 leads from the 2 dual lnb's run to a multiswitch. The multiswitch is grounded. The 4 outputs of the multiswitch run to one side each of a diplexer. The other side of the diplexer has cable run to it. The diplexers then run into the house and other diplexers that go to the sat receiver and coax cable input on the tv as appropriate.


Because the multiswitch is grounded, do I need any other grounds in this setup, e.g. grounding blocks, etc?


Thanks.
 

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No, do not ground it at any other point, you would probably cause a ground loop!:rolleyes:
 

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Quote:
Originally posted by ADent
In case you get a short or lightning strike the surge will go outside...
An actual He-Man lightning strike will override any humanly engineered diversion measure short of a solid conductor the diameter of a mature tree trunk. Since a dish or antenna does represent a quasi-lightening rod, its value, properly grounded, is to divert atmospheric charges safely to ground before they can rise to strike voltage potential. A grounding block could divert several hundred volts, which while not a real "strike" threat, is nevertheless enough to be destructive within walls or to equipment inside, to an outside ground. But a real lightning strike? All bets are off because it'll smile at any surge protectors, grounding blocks, rods, 6 or 8 gauge copper wire, and water pipes, and keep right on coming.
 
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