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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: 1022968" data-attributes="member: 369937"><p>Things to watch out for, one, just wrapping a copper wire around a steel screw or bolt as a ground will cause problems later as the wire reacts to the steel and corrodes to a useless point.</p><p></p><p>What I use is a crimp/solder lug, the better ones are gold plated to prevent corrosion, and sliver plumbing solder is used to keep the galvanic action down to a minimum, this is attached to a bolt on the dish pan it's self, then run down with the coax to any switch used, the switch is bonded with a #12 gauge copper wire to the main ground wire with a split bolt*, or several wraps around the main wire and bonded with the silver solder, then run down to your ground point.</p><p></p><p>At this location the ground block (if a switch is used you don't need the ground block as the metal case of the switch will do the same) is bonded to the main ground wire.</p><p></p><p>In my opinion a ground rod is the best bet, if it's not possible to use one then the next one would be the metal cold water pipe, (DO NOT USE A GAS PIPE) and lastly the house electrical service ground.</p><p></p><p>Now in some areas if you have someone install this they have to use the house ground, you as a home owner do not have to do this unless your needing an inspection for some reason.</p><p></p><p>The reason I do not like the house ground for RF systems is the ground noise on that, every device that plugs into an AC socket makes some sort of RF noise when it turns on and off or runs, this all adds up, especially in a large town or city.</p><p></p><p>*Split bolt.....<img src="http://ecat.burndy.com/Comergent//burndy/images/KS15.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Terryl, post: 1022968, member: 369937"] Things to watch out for, one, just wrapping a copper wire around a steel screw or bolt as a ground will cause problems later as the wire reacts to the steel and corrodes to a useless point. What I use is a crimp/solder lug, the better ones are gold plated to prevent corrosion, and sliver plumbing solder is used to keep the galvanic action down to a minimum, this is attached to a bolt on the dish pan it's self, then run down with the coax to any switch used, the switch is bonded with a #12 gauge copper wire to the main ground wire with a split bolt*, or several wraps around the main wire and bonded with the silver solder, then run down to your ground point. At this location the ground block (if a switch is used you don't need the ground block as the metal case of the switch will do the same) is bonded to the main ground wire. In my opinion a ground rod is the best bet, if it's not possible to use one then the next one would be the metal cold water pipe, (DO NOT USE A GAS PIPE) and lastly the house electrical service ground. Now in some areas if you have someone install this they have to use the house ground, you as a home owner do not have to do this unless your needing an inspection for some reason. The reason I do not like the house ground for RF systems is the ground noise on that, every device that plugs into an AC socket makes some sort of RF noise when it turns on and off or runs, this all adds up, especially in a large town or city. *Split bolt.....[IMG]http://ecat.burndy.com/Comergent//burndy/images/KS15.jpg[/IMG] [/QUOTE]
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Satellite TV receivers & systems support forums
Multi-receiver/TV systems - Domestic only
Multiswitches and earthing/grounding.
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