Figure 16: Feed horn O-ring properly seated
3.
Reattach the feed horn assembly by replacing and tightening the four screws
to 13 in-lb ± 2 in-lb. Ensure 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, as shown in
Figure 17
on
page 34.
Note:
The antenna mast must be plumb. The antenna cannot be adjusted to
correct for a mast that is not plumb.
Chapter 3 • Installing the antenna and radio
1039384-0001 Revision C
33