After installing a dish, you must ground the system. A multi-dish switch can NOT take the place of a ground block. The following instructions apply to a ground block only.
You may want to install the ground block onto the side of the building, or on some other sturdy structure near the satellite dish. Make sure that the location is stable, and the ground block is fastened tightly to the surface. As stated in Article 820-40 of the National Electrical Code (NEC), locate the ground block as close as possible to the power entry ground.
- To prevent possible signal loss issues, a ground block should be rated to 2250MHz.
- Mount the ground block so that its connections are horizontal. This helps keep moisture from leaking into the block. Using the shortest path possible, run the coaxial cable(s) from the LNBF(s) to the input(s) on the ground block.
- Put a drip loop (a small loop in the cable) in each cable to allow moisture to drip from the cable before it runs into the ground block.
- Run the ground wire to the power entry ground of the building in accordance with the National Electrical Code (NEC) and all local electrical codes.
A ground wire must always be a single piece of wire. Never splice two wires together for a ground. Corrosion and weathering can lead to a poor connection at the splice, making the ground ineffective and dangerous. If the ground wire is cut too short, replace it with a single wire cut to the correct length.
- Use cable clips to attach the cable to the side of the building. This helps prevent damage.
Friday January 12 2007 ©
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