Solid Signal says no Dish Hopper 3 in RV.
Their product description says... “A software upgrade may be required if this receiver is being installed in RV or marine application. Contact a customer service rep with your order # to make upgra...
Forum Discussion
I suspect the problem has to do with the Tailgater type antennas (DOME TYPE) and if you have a multi-LNB Dish (Triple) it will work just fine.
