Switching from single to dual...

[Executioner]

I have a single LNB installed now. I'm going to switch to a dual LNB and run another line in. My questions are:

1) When I switch LNBs, is the original messenger (ground) wire enough to ground the system now that its a dual system or do I need to run another coax w/ messenger wire from the other hookup on the dual LNB to the grounding block?

2) If I can run a regular coax (no messenger wire), can I run that coax straight into the house from the dish?

Thanks everyone.

[Fro]

You should use a dual ground block with your dual LNB. All you have to do is hook both cables to it, then ground the block to a cold water pipe, trailer frame, etc..

Then, yes, you should be running both cables straight to there respective IRD's without any splitters.

[Executioner]

Hi Fro,

Thanks for the info. I don't know what you mean by dual grounding block. The block my system came with has 2 female coax connectors on both sides of it. Is that a dual grounding block? The way my system is set up now is the coax goes from the dish to the block (the messenger wire goes to the block then to the cold water pipe). From the other side of the block another piece of coax goes into the house.

Now my second line is going into the other side of the house from the grounding block. I was wondering if I didn't have to ground the second line and if I could run it straight from the dish into the house.

Or, do I have to take it to the block, ground it, then come off the block with another piece of coax, go around the house to the other side then in?

[RJ]

A single ground point is fine. Aslong as the dish is grounded, you do not have to ground both coax's. The messenger takes care of that. Grounding 2 messengers could cause a ground loop.

[r505]

i sugest you use the dual ground block run both wires into it and run a pice of ground wire from the dual ground block to a ground source . if you try to take short cuts with this you may get a power surge and blow out not just your dtv system your tv stereo and any thing else that is conected will go do it the right way now and know you are protected.

[SMOKER]

r505 up

[r505]

I sense you want to debate this i am not with it .

[r505]

cool dude cool