I hope someone can help me. I have an RV with a KVH Tracvision SF dish and a Directv D11 receiver. I have never used either before now. My brother was using the receiver and I know it worked a week ago. The satelite receiver says to set the type of dish( #of LNB's which I assume is one) and zip code. Then it shows the signal strength meter. I don't know which satelite and transponders I am supposed to be looking at. It picks up some but when i leave that screen it says it faile to receive signal. Can anybody tell me which satelite and transponders I should be pickking up?