7
Antenna Installation
k. Twist and clamp the loose ends of the ground straps to the feedline, as
shown in
Figure 5
. This will prevent arcing between the mount and the
feedline.
Figure 5. Ground strap
installation
l. Tighten the closure plate bolts and the mount bolts, securing the bolted ends
of the ground straps as well.
Important
Be very careful to seal the joint completely. If water enters the radome,
the antenna will not perform as expected, and may cause damage to
your entire system.
m. Seal the closure plates and the joint where the radome encircles the
baymount with the silicone sealant supplied with the antenna.
Installing the feedline
mounts
Feedline mounts vary from installation to installation, to accomodate various
tower and mounting pole requirements.
Figure 6
shows several common con-
figurations. Your feedline mounts may be one of the common designs shown;
if they are not, they will be shown in detail on your installation drawing.
Before you begin installation, study the mounts, the mounting tower leg(s) or
pole, and your installation drawing carefully, establishing which mount(s) will
be used for each component.
a. On the tower, starting at the top, use a steel measuring tape to find the
location of each bay in accordance with the installation drawing. Mark the
mount locations.
b. Mark the specified location of any accessory mounts, such as for the
transformer or special coax input line sections, to make sure they will fit as
planned.
c. Watch carefully for any interferences by tower members or guy wires which
were not accounted for in the design.
