I believe Coachmen went to a fixed antenna. I have a 2017 Coachmen Apex and the antenna is stationary. I do get good reception on mine at the state park(s) we go to.
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Gerard
2017 Coachmen Apex 269RBKS with Summit Pkg.
2014 Ford Expedition with factory installed HD tow pkg.
Blue Ox SwayPro WDH