I stick with 19. I think some folks have tried to setup a "RV" channel, but most folks want to stay apprised of the traffic so 19 remains dominant.
1999 28' Safari
2012 F150 Platinum Max Tow 7650 GVWR 3.73 Elec. Locking Diff.(Prev 2003 Dmax).
Honda EU2000i, Equalizer Hitch
AM Solar Panels 150W - 2 Trojan T 105 6V Batteries
On internet forums, please research and separate the wheat from the chaff (including mine!)