3
Antenna Installation
2
Antenna Installation
Precautions
WARNING
Don't expose personnel to the medical hazards of intense radio fre-
quency (RF) radiation. Whenever working on the tower in the area of
the antenna, turn off all transmitters and lock them out so that they can-
not be turned on accidentally.
Installing the radiators
It will be easiest to mount the radiators onto the feedline sections before the
feedlines are mounted on the tower.
a. Pair up the feedline sections and the radiator assemblies, using the bay
number stenciled on each piece.
CAUTION
To prevent damaging the copper feedline, use clamps rather than
U-bolts, and don’t overtighten.
b. Lay a feedline section horizontally, supported off the ground, with its
baymount flange pointing upward. Secure the feedline section at the brass
end, using clamps, to prevent its turning with the weight of the radiator.
Figure 1. Baymount detail
CAUTION
All contact surfaces and openings to the interior of the components are
protected from contamination and from physical damage by protective
covers and plastic bags. Do not remove this protection until ready to
connect the components.
c. Remove the plastic bag and protective cover (see
Figure 1
) from the
baymount flange on the feedline.
d. Feedline flange hardware and baymount flange hardware are shipped
separately in plastic bags. Each bag contains the hardware for one flange.
O-rings are also shipped in a separate bag.
