Question on cable connection

Question

We have a cable outlet at the back of our camper. When we stay at a campground that has cable we just connect the coaxial to the back of the camper and our inside TV works just fine. This past weekend we stayed at a place that didn't have cable hookup and we brought our directv receiver with us. We were able to get it to work. But if we plug the coaxial (that is connected to the dish) in to the back of the camper and then have the coaxial running from the wall to the receiver. We can't get it to work - no channels. So we have to run the coaxial directly from the dish into the camper and connect it to the back of the receiver and then to the TV. As an FYI we have the booster for the antenna shut off.

Has anyone else experienced this? Is there a trick that we're missing? We don't understand why it would work with cable TV but not satellite.

Thanks,

Karen

k_charles · Answer

The satellite won't work thru the antenna booster even if it's off. There is a way to pull that stuff out of the wall and fix it so it will work. Most new TT have two connections one for cable and one for the dish.

sandia_man · Answer

Common problem with rig's that have a single exterior coax input as our TT does.  Performed this simple modification to our TT and we have no problems watching our Directv HD satellite programming through the single exterior coax input.

wyotraveler · Answer

Sometimes I think the idiots that build RVs have never RV'd a day in their lives. Other times I know they have never RV'd. In some of the older RVs the outside connection went directly to the TV area. Guess that was too simple. Now most of them run them through the boosters and spliters first. Actually not too hard to get into the area and change the wiring around and run it through your sat dish first then to the rest of the equipment. Fortunately my RV had a wiring diagram in the manual so it was pretty easy to change it.

wildtoad · Answer

The simple answer is the feed from a cable system is different than from a sat dish. Signal splitters that work for cable signals interfere with the "data" coming from the sat feed and requires different connections.

john___angela · Answer

The control voltages needed by the LNB on the dish are being blocked by the booster. Pull the booster off the wall, connect directly to the cable that goes directly to the rear of your RV And it will work. There might be a couple impedance mismatches but generally it will still work.

Good luck and happy camping.

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Question on cable connection

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