Littlemo:
You need to first understand the difference between “DirectTV” and “Dish”. With “DirectTV” you will be not able to receive any HD stations using a single portable dish. With “Dish” the X2 is capable to receive HD stations being “Dish” uses a total of only three (3) sats in the Eastern Arc and three in the Western arch while “Direct“ uses a total of five (5) (I believe but not positive). With the X2 hooking up two receivers makes the X2 look for and use the Eastern Arc for the three Sats needed. Being the X2 only has one “LNB” (the receiving portion of the dish) instead of the stationary receivers having three (3) lNBs. the dish has to change aim each time it has to move to a different sat.
As mentioned within the owners manual of the X2, when using two (2) receivers, the second receiver will only be able to watch stations (or channels) that are broadcast on the same sat. You can go to http://satmaps.satelliteguys.us to get a listing of stations on each satellite you will be using to help understand what stations (or channels) are available on each satellite.
I have the X2 and am pleased with the performance.
I hope this help you with understanding your situation, if additional questions please send me personal message and I will get back to you ASAP