I have the trango broadband link calculator. I plugged in all my custom mikrotik values, and it tells me at 20miles:
the Fresnel radius is 69.66 ft earth curvature is 50 ft and required antenna height is 119ft.
expected signal is -63 as we are using 25db grid dish ant's
not having experiences with this distance of a link
my question is this:
If one end is at 125ft and the other is at 55ft, is there ANY chance this link will work? how strict is the 119.6 required antnna height @ 20 miles.