An improvement to consider: The Data Center (DC) "L"-shaped mount poles do not allow for the DC to remain in a fixed position. The unit continues to sway left/right regardless of how secure the base bolts and pole connectors are tightened. Given the importance of the DC remaining in a fixed position for mapping accuracy, I'm resorting to adding a 1" radiator clamp around the riser pole and securing braided guy wires and turnbuckle clamps to create a triangle of (3) fixed points for the DC to the exterior wall.  These added guy wires with turnbuckles allow me to securely fasten the DC in a vertical fixed position, removing the left/right sway.