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Help - What is my problem...too long of cable run?

10-10-2007, 12:23 PM
I could really use some advice on how I could fix my issue. I have two H20-100s hooked up to long cable runs. The cables needed to be run around the outside of my house ~125 feet, then inside the house the two boxes are another ~50 feet...for a total run of ~175 feet to each box. All the cable is RG-6.

The issue is that either of the two boxes work fine when they are the only one hooked up...however when both are hooked up, I lose the signal on one of the two. For example, if I tune one receiver to channel 70 (HD HBO), I lose about 15 of the transponders on satellite 101 on the other receiver. Both receivers can be on non-HD channels and I don't seem to have an issue. Just on certain channel, most notiable legacy HD channels does the other receiver have issues.

Without knowing what is happening, it seems like one box is "stealing" the signal from the other. My guess is it is either some kind of short with the two cables (outside run in a dual-cable run) or power issue because of the long run. What do you think???

Thanks for any suggestions.

10-10-2007, 03:15 PM
Do you have 2 cables connected to your 5 LNB dish with 1 going to each H20? You're not using a splitter are you? Do you use a multiswitch?

10-11-2007, 10:56 AM
The standard suggestion is 100' of run is about all you can do. I've found that you can run about 150' before signal strength is degraded. You may have to use a powered booster.

However, I have no idea how the new MPEG4 signal will react if it's boosted. I haven't seen any discussion of this issue. You would think it wouldn't matter because all the booster is doing is "pushing" the signal down the line. But we know that the MPEG4 compression format just won't function with certain kinds of hardware (e.g., splitters).

If you have to call DirecTV for a technician to come to your home insist on one who has HD experience. It's a whole new ball game compared to SD.