if ur going to aim ur dish, this gadget will help. they cost between $20 and $30. believe u can still find them at radio shack. you just plug the receiver in. attach this in the cable between the dish and the trailer. then manually aim ur dish until u get the best signal. if it isn't the right sat, aim again. the sats transmit on the same freq so u have to aim right at the one u want. ur receiver will tell u if ur on the right one.
i went to an automatic dish. just set it outside with a clear shot at the sw sky the go in and plug in. it does the rest.
there was times that i spent half hr trying to set up the old one (other times would get it in a minute).