38
Chapter 3
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Installing the antenna and radio
1039740-0001 Revision B
Figure 20: Feed horn O-ring properly seated
3.
Reattach the feed horn assembly by replacing and tightening the four screws
to 13 inch-lb ± 2 inch-lb. Ensure that the feed horn face is flush to the housing
on all sides.
Attach the feed horn assembly exactly as described in this section. Failure to
do so could allow moisture to accumulate inside the radio and/or feed horn,
causing damage to the equipment.
Installing the antenna assembly onto the mast
Follow these steps to install the assembled antenna assembly onto the mast pipe:
1.
Before you install the antenna onto the mast pipe, use a bubble level to
ensure that the mast is plumb.
Check the mast at two perpendicular locations. See
on page 39.
Note:
It is critical that the antenna mast is plumb. It is impossible to adjust
the antenna to correct for a mast that is not plumb.
