To use the hopper in an RV, you would need the proper LNB, which would require a standard Dish Antenna, likely on a tripod. It would enable the multiple tuners to work on separate satellite signals. A Joey could also be used in this case in conjunction with a hopper but not stand alone. A tailgater antenna would not be suitable for a hopper (because of the multiple tuners) as a tailgater antenna can receive only one signal from ONE satellite at a time, thus Wally's are best suited for tailgater antennas as they only have one tuner. This is also why when you connect two Wally receivers to a tailgater antenna, they both have to be on the same satellite, they can watch different channels only if both channels are coming from the same satellite. On a tailgater antenna, if you select a channel that is coming from a different satellite, there is a momentary lag while the antenna adjusts it's aim to pick up a different satellite, and if you have two Wally receivers connected, it will knock the second receiver (slave) off line until it also is tuned to a channel on the same satellite as the first receiver (master) and may require a reboot of the second (slave) receiver to work.