Drive stereo/TV Antenna booster

[popsten]

I own a 2018 308BHS. Has anyone noticed that the Antenna on top of RV is used for both TV and Stereo. I have terrible stereo reception and even with the booster on its not that good also at times I can rotate the antenna and get some better reception. And when at Campground with incoming Cable for TV connected the Stereo is all static. Watching TV inside and Radio outside will not work. Wondering why there is not a separate antenna for Stereo so their is no interference. Any ideas or solutions are welcomed. Thanks

[bikendan]

I don't know what Brand your model is, since it's not listed in your profile, but the crank up batwing antenna on my PrimeTime TracerAir does NOTHING to improve radio reception.
My previous 2007 Rockwood HTT had a separate whip antenna for the radio.