I have Dish service, I am using dish outdoors mobile wally reciever, with dish HD disc, twin hybrid eastern arc, 1000,2 LNB, I can get both sats, 61.5 & 72, & both show locked signal. I don't get all my subscribed channels . Dish tech says I am not keeping sat 72 locked. Can any one tell me which port or ports I need to use on the LNB & DO I need any more equipment or cables added. I am using 1line direct from LNB port to reciever. Is my equipment satisfactory ? All setup & installation instructions are very vague