I did *not* know that since all the tech did was stomp around looking aggravated at how much work he was going to have to do. The tech was was the one who kept wailing about monopoles so I just assumed (another my bad) that he would be using them in addition to a clamp mount if he did attach to the existing mast. Son of a gun ... now I (finally!) understand what's going on. Hey ... I'm slow, but I do poor work.
This does simplify the process for a pole mount once I get another pole sited and sunk. I have pretty firm recommendations for both 1-1/2" and 2" pipe - is that just I.D. vs O.D. colliding? It wasn't written that way and I have a pdf from a sattelite installer that insists on "2-inch O.D., 1-1/2-inch pipe" for an AT9. Does the AU9-S Slimline antenna have the identical mount? I even have (dated/older) copies of the installation manual with no pole diameter specified.
Sorry for all the questions/confusion - there is so much conflicting info on the web, I have yet to see an installed DirecTV HD dish way out here in the weeds and I really do trust the opinions rendered here.
Thanks again/still to all for bearing with me here.
FX