4 |
Place the reflector facing upward. A crane can be
used as an aid for large reflectors. First, carefully
raise the reflector so that it rests on the rim. Then,
carefully lower the reflector so that it rests on wooden
supports placed under the antenna mounting ring. Place
wooden braces as needed to hold the reflector in a
stable position.
|
Click here to see picture below enlarged
5 |
Lift the shield and position it on the reflector. For
large shields, a crane can be used and the cables
attached to the radome J-bolt brackets located either
90° or 120° apart. Position the shield so that the red
stripe on the shield aligns with the red stripe on the
reflector rim. This rim marking indicates the top of the
antenna. As the shield is lowered into postition, insert a
1/4" (6-mm) thick plywood shim between each shield
joint and the reflector.
|
|
Click here to see picture below enlarged
6 |
Loosely attach the shield to the reflector with the
shield flange bolts so that the nuts are barely
threaded onto the bolts. Move the shield as necessary
to align the bolt holes. Insert each bolt with a flat washer
on it from the reflector side and add a flat washer, lock
washer, and nut from the shield side. Do not tighten the
bolts.
|
Click here to see picture below enlarged
7 |
Use care when unpacking and handling the RF
gasket. Crimp one of the two gasket clips onto one
end of the gasket. Hook this clip on a flange bolt
between the flange and the reflector. Guide the gasket
into this gap and against the bolts completely around
the antenna. Crimp the other gasket clip to the gasket at
the next bolt beyond the first clip. Trim the gasket at the
clip and hook the clip to he bolt.
|
|