Yes, the 2 degree problem is very relevant in this as a hypothesis. So many have done their dish this way now; even a copper bowl will pick up all the satellites you want? When you want all the channel's available, at the highest quality the signals can be gathered at. And, the 2 LNBf's; the how many more will fit without shadowing too much. fred555, if a shadow occur's (all center focused lnbf's are a (scalar's add even more shadow to the dish), and the 8 foot dish in the mid-west is all that is needed; what does putting 2 lnbf's; angled only 1 degree towards each other do? It adds a little more shadow, because then there are 5-10 lnbf's across the angle the dish needs to move angle, if motored; and receives from angles point past each other too. The offset dish in the picture removes the shadows. The lnbf's all receive only the un-shadowed this way; the only shadows to the dish are the lnbf's throat's (if they are off the halo effective points even a little bit they make a shadow to the other satellite signals). This halo area the lnbf's mount to is at the same prime focal distance from the dish at all times (as every lnbf must receive from to "get the full satellite dignal; unlike a DBS dish; because when you measure the distance from the lnbf to the dish; using the angle the lnbf is pointing; it is different for each pointing at the dish; instead of them all pointing at the middle of the dish.
How many can be offset this way? As many as you can mount; from one horizon to the other there must be 50 satellites; then 50 lnbf's would equal 100 degree's swath 25 each side of the dish 2 degree's apart each is exactly that many. Just putting 5 together this way AT OFFSET; will challenge you however you want to do it; they must be staticly mounted; perfect signals; for each onto the dish to not shadow the dish (offset does this); then take the motor off the dish and make sure it does not move either; and use the dish at offset instead. It is a good challenge, however; and worthy of the 4000 dollar's worth of lnbf's and 1.0/1.1 switches; to accomplish it for the cable company; they will pay!