I have a Keystone Hideout travel trailer which has one of those "flying saucer" type of TV antennas. When I go to a nearby state park I have trouble picking up TV stations which are as close as 25 miles away or closer. I have been using an external antenna but it is a hassle to bring and set up every time. I really don't want to subscribe to a satellite dish. My travel trailer has a booster for the antenna but it doesn't seem strong enough. Any suggestions to bring in better TV reception?