Rv's are metal boxes that block radio tv signals. So you need a good outside antenna. Alot of RV roofs, like mine are EPDM ie rubber. Antennas need a good ground plane, ie metal. When selecting a roof antenna for omni or circular direction meaning you need to aim the antenna, the Wilson Trucker works well. If you know where the cell tower is and want faster service especially if your distant from the cell tower then you need a yagi antenna to aim at it. I have both as it depends are where you are in relation to the cell tower. There are apps and websites that tell you where the towers are and what service they have ie VZ ATT etc. My outside antennas are connected to a Wilson Extreme RV amplifier and and inside antenna. Radio signals, as that's what a cell phone is a two way radio are subject to interference, obstacles and distance as well as the cell phone tower it self may not be transmitting well. Both of my antennas are mounted on a painters pole, power clamped to the ladder. Height is might as hams say the higher the better.
So if your out in the open and can see the tower you probably can stream Netflix, if you cant, hills trees buildings or you parked next to a beautiful class a moho, you may get nothing. Same for CG wifi outside antenna, amplifier and inside antenna. I carry both systems not knowing which one will work best. Now if both systems cant get a signal or I don't need to work, either pick up and move, select a better cg or location, if not then pop a beer and throw another log on the firepit. Happy Trails
