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...
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You can install the DPH42 on the roof as it is designed to be an outdoor unit. Then you will have the coax you need running inside the coach. Be sure to put some dielectric grease in all external coax connections.
