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5
DSE3-50 Rev 6/20
put the screw through one of the balun lugs connected to the center conductor. Next, place a
second internal tooth lock washer on the screw, then insert the screw through the lug from the
coax connector. Last, place a third internal tooth lock washer on the screw, then insert through
one of the tee arms and screw it in to the Delrin standoff insulator. Do not over tighten the screw
as you can strip the threads in the standoff insulator.
6. Slide the T-arm shorting bar over the end of the driven element and the T-arm. The shorting bar
should be about 13” from the outer end of the driven element. Install 8-32 X 1 1/4” screws through
the two holes in the shorting bars and install a lock washer and nut. Tighten both the shorting bar
screws. Attach the other T-arm in a similar fashion, but without the wire coming from the
connector and locate the shorting bar
about 13” from the end of the other driven element half.
Boom
1/4" X 1 1/2" X 3" U-BOLT
Delrin standoff insulators
connection point for
Balun and T-match arms
Front
Driven element
Element Saddle bracket
N-Connector
¼” Locknut
Figure 2
7. Connect both ground wires from both ends of the balun to the grounding screw just below the
connector. Place a lock washer on the stud first, then both lugs, another lock washer and then the
nut and tighten. Refer to Figure 3 for details.
8. Dress the balun along the boom or coil it as pictured. Securely tape the balun to the boom or use
cable ties as pictured.
Figure 3
