Hy-Gain LP-1009A, Instruction Manual

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Installing Elements on the Boom
You should now have 24 completely assembled
element halves. If you have both ends of the
boom supported, you may start with element #1
at the front of the boom. If you do not have the
boom ends supported, start with the elements
near the center of the boom and proceed to each
boom end, keeping the antenna balanced.
Insert the insulated end of each element half into
the corresponding bracket on the boom and
tighten the eight (8) 1/4"-20 x 3/4" bolts.
Position the element compression clamps on the
elements to the top side if the antenna will be
raised over tower guy wires. Do not tighten the
center anchor bolts until all elements are aligned
in the same plane. Before you proceed to the
next element, attach the pigtail wires to the
tubing clamps as shown in Figure 12. Use 1/4"-
20 x 1 1/4" bolts on the small clamps and 1/4"-
20 x 11/2" bolts on the large clamps. Tighten
these bolts securely.
Align each element so that it is parallel to the
ground and perpendicular to the temporary mast.
If you have a flat assembly area, you can use
visual references, such as corners of structures
and horizontal lines in exterior walls to align
each element. When all elements are aligned,
securely tighten the center anchor bolts and
recheck the tightness of the other eight (8) bolts
on each bracket.
Balun Assembly
Attach the BN-4000 balun to the boom, as
shown in Figure 12. Use the U-bolt and #10-24
nuts. Attach the two 4 1/8" pigtail wires to the
balun using 1/4"-20 x 3/8" screws and
lockwashers. Tighten all hardware securely.