Thanks to any of the pros who can give me a little help. I carry my dish 300 and 522 dvr a few times a year for my horse trailer. When I was loading up I couldn't find the s21 switch. My LNB only has 2 ports. Is the s21 a must to get any channels or will I at least get the odd's or evens and which bird should I try for (119 or 110) and which transponder is the strongest for peaking? I will be in Bryson City N.C. Thanks so much, I love tv and can't do without it.