Jensen Antenna

I have a Jensen TV antenna on my travel trailer. The antenna works awesome on "air" and the available channels come in really clear. The problem I have is a fuzzy picture when I switch to cable TV when using RV park cable. If I run the coaxial cable directly from the park cable box to my television, the picture is clear. However, if I run the coaxial cable from the park cable box to the outside RV cable connector, then from the Jensen coaxial connector in my TT, then to my television, I get a fuzzy picture. So, the problem must be between the outside of my TT and the Jensen TV outlet/ switch on the inside.

Could the problem be the switch? My Jensen TV antenna interior outlet has a 12 volt socket, a coaxial connection, a switch for air/cable and a fuse. I have checked all the connections behind the interior outlet and exterior coaxial connection and everything is tight. I hope it's not in the wiring.

Has anyone else experienced this and do you have any ideas what could be the problem?


Thanks!