We have been using the RM-DM46 antenna on our Class C with DirecTV for the past 5 years and really like it. Much easier to use than the portable antenna we had previously. I don't know how to get the elevation and azimuth settings for Dish, but once you have that info it isn't difficult to aim the antenna. You can find the manual for the antenna
here. I use a somewhat different method to find the satellite than is described in the manual. I posted my method with pictures in an earlier thread
here.
2003 Winnebago Minnie 24F - Ford E-450๐