38
Installing the antenna and radio assembly
1037749-0001 Revision F
1.
Position the clamp half that has two threaded holes against the interface
where the feed horn stem mates to the polarizer, as shown in Figure 22 (left
photo).
Figure 22: Attaching the clamp over the end of the feed horn
2.
Position the other clamp half (with holes that are not threaded) against the
clamp half that is already in place.
3.
Start each screw (spring-loaded Allen screws) by hand, being careful not to
cross-thread them.
Because the screws are long, they can easily be cross-threaded if they are
misaligned. If the screw does not turn easily when first inserted, back it out
and start again.
4.
Use a 7/64 inch Allen wrench—do not use a power driver—to alternately
tighten the two screws on the feed horn clamp.
When you hear a click, the screw is fully tightened and should not be turned
further.
Note:
When the screws are tight, the clamp halves do not touch each other. This is
normal.
