[sperho]

I'll be installing a Slimline 5-LNB Thursday. I've read about 50 grounding threads, but I want to make sure the system is grounded as best that I can. My house ground rod is about 75' away from the dish, so I was going to run an exterior #10 copper ground wire for the dish/mast to a 2nd ground rod and bond that rod to the house ground with #6 copper (routed through the a vent in the crawlspace and then through the crawlspace with the wire laying on the soil). What should I do for the coax ground? My thought was to use an interior grounding block and run a separate #10 ground wire to the 2nd rod out through the Commdeck box. Or would an interior run all the way to the panel from the interior-placed grounding block be acceptable?

As a 3rd alternative, what about putting the grounding block in the Commdeck box and running the mast ground wire through the block on its way down to the 2nd rod?

 

[samson521]

i was wondering, how you grounded the dish and grounding block. and what size wire you used. looks like the grounding block using a 10 gauge wire. can someone tell me what the biggest gauge u can use on the grounding block.. 10? 8? or 6? thanks for any suggestions

 

[joe diamond]

The ground wire attached to the dual cable seems to conform to most codes. The installer will end up running two double cables (4 sat lines) from the dish anyway. Using both attached grounds should do it.

Expect the installer to look for a closer dish location.

Ground blocks have a 3/16 hole that will accept even 6 ga wire.

What you planned looks ok but there are easier ways.
Joe

 

[sperho]

My chosen grounding solution:

Coax (3 total) from the LNBs run through the Commdeck and through the roof to a grounding block located about 8" inside that is screwed to a rafter. A 10-gauge THHN wire is connected to the grounding block and out through the Commdeck to the mast. From the mast, the wire is lying on the roof for about a 10' run, then down the side of my two-story house to a new 8' ground rod. Said ground rod is bonded to the incoming water pipe to my house with a 4 gauge run of bare copper wire going through my crawlspace. The water pipe is the same location where the 4 gauge wire that runs to the electrical service panel is connected.

 

[samson521]

i'm installing my commdeck tomorrow. coming into my attic with 4coax , 1 #8 gauge for grounding. the #8 wire will be going straight to my ground wire in the attic, and thats going to cold water pipe in the ground and attached to grounding rod . my 4 coax lines will be hook-up to a ground blocking and than too will go to the same ground wire.. is there a difference going with a bare copper wire or a shielded ground wire?

 

[sperho]

is there a difference going with a bare copper wire or a shielded ground wire?

No need to shield the ground as it doesn't carry signal. If you mean insulated vs. bare, no there's no difference. Looks mainly.

 

[joe diamond]

No need to shield the ground as it doesn't carry signal. If you mean insulated vs. bare, no there's no difference. Looks mainly.

Somewhere in the code I remember you can use one size smaller wire for a ground if it is attached to the cable as in RG6 with ground. Doesn't make sense but it is there.

Joe