e.
Tighten both bolts to the plate before continuing with installation to prevent any unnecessary
movements of the whole equipment. Before precisely adjusting the vertical direction of the antenna
upon completing installation it will be necessary to unscrew them again as the lower bolt passes
through the adjustment block and the upper one serves as the axis of rotation.
Fig. 5.12: Tightening the upper bolt to
the mounting plate
Fig. 5.13: Tightening the lower bolt to
the mounting plate
f.
Before installing the FOD unit on the antenna first unscrew the 4 bolts on the back of the antenna
enough so that the unit can be slid on to them. Then check whether the "O" ring is correctly fitted
on the antenna pin, and make sure it is not damaged and has been lubricated with grease – see
Section 5.2.3, “Lubrication and preservation of the antenna pivot”. Then remove the protective
plastic cover from the central pin of the antenna and fit the FOD unit to it carefully so as not to
damage the "O" ring. Secure it in place with the four bolts. Carefully ensure the correct polarization
of the antenna – see Section 5.2.1, “Mounting methods”. Finally tighten the bolts with a No. 6 Allen
key.
Fig. 5.14: Dish before installing the FOD unit
Fig. 5.15: Tightening bolts on the FOD unit
RAy Microwave Link – © RACOM s.r.o.
40
Installation
