Hooking up Dish 500

[Luther]

I'm going out of town for a month and have a Dish 500 with no LNB. Someone is going to give me dual LNB. My question is besides the pole, RG6 cable, do i need a 21 switch? I will be hooking all this to a 510.

 

[BnT]

if you are only getting one Dual LNB than a switch is not neccesarry, you will be only getting one orbital location. two get both 110 and 119 you will need a second dual and a SW21.