Originally Posted by King Yankee
booster is off, connected to neighbors cable outlet, same issue. Thought I had it somewhat ok, wind blows and we're back to start. (?)
The problem is the park's cable TV distribution system. Not your camper.
The amplifiers in the system are "rolling off" the lower frequencies and allowing the signal level to get too close to the noise level inherent in all such systems. (The symptoms you describe indicate an old, analog system)
The signal should be strong enough so that the noise, which is always there, is not an issue. The signal is so weak the noise become obvious. Once this happens there is no way to "fix" the noisy signal. Filters won't take it out, and when you amplify noise, you get.... loud noise.
Don't try to fix anything in the camper. The problem isn't yours.