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Satellite TV receivers & systems support forums
Multi-receiver/TV systems - Domestic only
Multiswitches and earthing/grounding.
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<blockquote data-quote="Terryl" data-source="post: 1022963" data-attributes="member: 369937"><p>A true ground is the best way, the old copper pipe may or may not still be connected to an Earth ground.</p><p></p><p>If you have no way to run a wire to the ground point then you should check the pipe out for continuity to the ground point.</p><p></p><p>I just stick a copper #12 (or #10) out a roof vent screen, then bond it to the satellite dish ground with a split bolt.</p><p></p><p>And you should use one ground only, several different ground points can cause problems.</p><p></p><p>I usually start at the dish it's self with a #10 run the shortest way directly to the ground and use a ground rod, all other equipment involved with the satellite installation outside the building is bonded to this ground, the last thing is to use a ground block right where the coax enters the building, and its bonded to the dish ground.</p><p></p><p>The ground point could also be right where the coax first enters the building, this would make the ground block the shortest ground wire, and you want to keep them as short as possible.</p><p></p><p>Also if you are in a lightning prone area a gas discharge device should be used to protect the center conductor, this can be used instead of a ground block as it will do the same job except it will provide better protection.</p><p></p><p>If the location of the dish is in the back of the house and the electrical service ground is in the front then the ground wire for the dish would be too long and could cause problems, the shorter the grond wire on an RF system the better.</p><p></p><p>You could use a #12 copper wire but if the ground wire is over 10 meters then you need to go to the next size larger,(#10 or #8) the bigger you go the better.</p><p></p><p>On my antennas here at home I have several satellite dishes, several Ham Antennas, scanner antennas and TV antennas, all tied to one ground point, and I also have a poor ground conductivity as there is rock about 10 inches down, so I used a 6 point radial ground system, with all equipment bonded to this, the main ground wire is a #2 copper.</p><p></p><p></p><p>Opps sorry...Tooo much coffee this morning, I will stop.,</p></blockquote><p></p>
[QUOTE="Terryl, post: 1022963, member: 369937"] A true ground is the best way, the old copper pipe may or may not still be connected to an Earth ground. If you have no way to run a wire to the ground point then you should check the pipe out for continuity to the ground point. I just stick a copper #12 (or #10) out a roof vent screen, then bond it to the satellite dish ground with a split bolt. And you should use one ground only, several different ground points can cause problems. I usually start at the dish it's self with a #10 run the shortest way directly to the ground and use a ground rod, all other equipment involved with the satellite installation outside the building is bonded to this ground, the last thing is to use a ground block right where the coax enters the building, and its bonded to the dish ground. The ground point could also be right where the coax first enters the building, this would make the ground block the shortest ground wire, and you want to keep them as short as possible. Also if you are in a lightning prone area a gas discharge device should be used to protect the center conductor, this can be used instead of a ground block as it will do the same job except it will provide better protection. If the location of the dish is in the back of the house and the electrical service ground is in the front then the ground wire for the dish would be too long and could cause problems, the shorter the grond wire on an RF system the better. You could use a #12 copper wire but if the ground wire is over 10 meters then you need to go to the next size larger,(#10 or #8) the bigger you go the better. On my antennas here at home I have several satellite dishes, several Ham Antennas, scanner antennas and TV antennas, all tied to one ground point, and I also have a poor ground conductivity as there is rock about 10 inches down, so I used a 6 point radial ground system, with all equipment bonded to this, the main ground wire is a #2 copper. Opps sorry...Tooo much coffee this morning, I will stop., [/QUOTE]
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Multi-receiver/TV systems - Domestic only
Multiswitches and earthing/grounding.
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