Site considerations
98-175666-A
Chapter 2: Installation
2-7
ADU mast flange (100 cm)
For best performance, do as follows:
1. Provide a mast flange with a minimum of four gusset plates.
2. Fit the top of the ADU mast with a flange with clearance holes matching the bushings in
the radome and with minimum 4 gusset plates. No center hole is necessary in the
flange.
•
Flange thickness
: Minimum 15 mm.
•
4 gusset plates
: Minimum 15 mm thick, must be placed as close as possible to the
holes in the mounting plate and evenly distributed.
3. Make sure that the flatness on the mast mount plateau is below 3,0 mm.
4. Allow sufficient space so the nut is free of the welded seam and there is room for tools
(min. 50 mm).
Figure 2-5: ADU mast flange, recommended flatness on the mast mount plateau
Figure 2-6: ADU mast flange, distance to the welded seam
Figure 2-7: ADU, bottom view (100 cm)
