a Super Dish is a dish that sees 105,110, and 119 or 110, 119, and 121. At this point you only need them for locals or internationals. A DP 34 switch combines 3 orbital locations and sends the signal to 4 tuners ( a 625,522, or 322 are 2 tuners ie) All LNBS must be rated DP or DPP in order to use a 34