My fifth wheel uses one of these two port outside f-connector panels mounted close to the 30AMP Shore Power Connection. One port is labeled CABLE and the other port is labeled SAT. My OFF-ROAD POPUP trailer only has a single outside f-connector panel for CABLE TV connection.
Look for these f-connector panels in the same area of the SHORE POWER connection on your trailer. Most camp ground locations has the CABLE TV CONNECTION on the same pedestal the shore power connection is on.
Be sure to bring along a 25-foot male to male f-connector RG cable that will be required to go from the trailer to the camp ground pedestal. I usually bring along a standard f-connector transformer splitter with a short male to male f-connector to hook up to the camp ground connection. Then I can run one F-CONNECTOR RG-Cable to the CABLE TV Connection of my trailer and a second F-CONNECTOR 50-foot RG Cable to run under my trailer and be in the awning area to hook up to a small outside TV that we sometimes like to watch sitting under the awning.
Having said all of this there are some trailers that do not have the outside f-connector panel installed as a STANDARD OPTION from the trailer manufacturer.
Roy Ken