With one exception the antennas installed on RV's work fine for Digital
That one exception is the original Winegard "Batwing" style. it's VHF only
If your existing antenna works well on channels 7-69, Well, Digital will be mostly 14-59 with the odd city having some channels on 7-13
These are the ANALOG channels... NOTE that the digital channel need not be the same, for example Digital channel 7 where I'm at is really analog channel forty something (42 I think might be 49)
Nothin adds excitment like something that is none of your business John is Near Kenwood TS-2000 housed in a 2005 Damon Intruder 377