hello I just got a h24 hd reciver and I have a slimline dish and on the lmb it says sl3 I have tried to aim the dish to get the hd programing and am unable to get all the hd channels I get some movie channels but no speed or espn or nfl in hd when I aimed the dish get some singnel on 103 none on 99 get singel on 101 110 and 119 my question is do I have the right lmb to recive the singel or do I need some power adapter or do i just have to keep trying to fine tune any help would be great