The two outside LNB are standard dbs LNB, the middle LNB is a special (c) LNB, in theary both out side LNB could be used for VoOM, but the Phase III dish internal switch defaults to the 101 LNB only for pointing the dish at DirecTVs main slot (101), so what I am saying is if you hooked it up to a VoOM receiver the far right (from behind) is the LNB you will be using, the others will be doing nothing, and as such the dish will not be pointing directly at the VoOM slot (61.5) as the 101 lnb signal is bounced off the side of the Phase III dish and into the 101 LNB. Also if you set the correct skew on the Phase III dish for the VoOM satellite it will collect more signal!