Feedpoin
t
Select the beta feed jumper straps, feed straps and associated hardware as
shown in Figure 11. Assemble the beta feed jumper straps and feed straps to
the phasing tubes with two (2)
'/4"-20
x
3
/4
"
bolts, lockwashers, and nuts. See
Figure 11. Tighten these snugly. Slide the beta tube assembly on the boom
until the beta feed jumper straps can be attached. Attach the jumper straps to
the beta tubes with '/4"-20 x
3/4"
bolts, lockwashers, and square nuts and
tighten all bolts to hold the beta tubes in place.
Select the JR (6'/2") pigtail assembly wires, 1'/4" tubing clamps and associated
hardware as shown in Figure 11. Expand the 1
1
/4" clamps slightly and slip onto
the 1
1
/4" tubing near the Front Driven Element insulators. Position the tubing
clamps flush with the insulators and secure to the tubing using '/4"-20 x 1'/4"
bolts, lockwashers, and nuts. Slip one end of a pigtail assembly over each 1' /4"
bolt and secure using another lockwasher and nut. Route the pigtail up and
over to the feed strap. Secure the pigtail wires to the feed strap using #10-24 x
'/2
"
bolts, lockwashers, and nuts.
Attach the BN-86 balun to the boom, as shown in Figure 11, using the U-bolt
and #10-24 lockwashers and nuts. The balun will be tipped to one side in order
to line up with both feed straps. Attach both feed straps to the balun using '/4"-
20 x
3
/8
bolts and lockwashers. Tighten all bolts securely.
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