Grounding

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Grounding

"Grounding" a satellite system is not actually what we do. We actually are
"bonding" to the home's ground system. It is not recommended to actually add a ground such as a rod driven into the ground, but rather, we need to bond at some point to the existing system.
Bonding to the house's ground system can be accomplished in a number of ways and at various locations.

    

   Why should the dish system be grounded? Why Ground?

    Is my dish grounded?

Here are a few pictures and some description to act as examples to determine whether your system is "grounded". Not every case is presented, yours may differ.

The grounding of a dish system include three essential elements, pictured below. A properly grounded dish includes:

   1. A ground block with service/drip loops...

The portion of the ground from ground block to your water pipe (or other approved connection) is for electrical safety and code. This portion of the ground satisfies the legal obligation in regards to electrical codes that are written for safety. It should be properly installed. For your safety, it MUST be installed correctly.

     

      A 3.0 Ghz ground block is required and will have a blue color center if you remove a wire to check.

   2. Connection to the dish unit with a ground lug...

The part of the ground that connects the dish to the ground block is the part that really affects the function of the system. Usually a "messenger" wire, as some call it (the unshielded copper ground wire that is embedded on the side of cables with ground) should be connected to the dish by using a ground lug. This connection is the one that, when left out, creates a ground loop antenna and stores static electricity in the dish that must eventually escape by the nearest electrical junction (LNB). Without this ground, stray EMI signals have nowhere to go but to ride as noise on your signal, reducing your signal quality meter reading (most commonly and incorrectly referred to as your signal strength meter). Furthermore, without this ground, your antenna will ATTRACT lightning, rather than appearing "invisible" to the accumulating charges of the lightning bolt.

 

.. and some other types of dish connection you may see using existing bolts or a self-tapping ground screw...

   Using a ground lug is the preferred method of attachment. The other representation using existing bolt will do the job and was sanctioned in the past.

When using a wing dish or multiple dishes, use a single ground lug on the wing dish and a dual ground lug on the primary dish. Connect the wing dish to the dual lug, then connect the dual lug to the ground path.

  3. Connection to an authorized location in the house's ground system.

Note: These pictures are not all of the types of grounding you might see, but a properly grounded system has to have connection to the dish unit and the house ground system. 

 

These bonding connectors are pipe straps, split bolts, corner clamps, and pipe clamps.

  Pipe Straps

Pipe straps are used to wrap around a copper water pipe or similar bonding location.

  Split Bolts

Split bolts are used to bond to the ground wire that enters the earth from the electrical box.

        Corner Clamps

Corner clamps are used on electrical boxes.

and

Pipe clamps are used on water pipes or similar pipe bond location.

     Pipe Clamps

Here is a detailed article about code and grounding http://ecmweb.com/nec/electric_article_radio_television/

 

Up
Installer Notes
Dual Meter Troubleshooting
Signal Meters - Analog vs. Digital
Dish 500
Using a Dual Meter
Dish 1000 vs. 1000.2
TV2 Tips & Tricks
Other LNBs
What are Transponders?
Grounding
Why Ground?
What Does the Dish See?
Identifying Satellite Dishes

 

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