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DSEFO144-12XPOL Rev 2/21
If you are installing multiple antennas, please be sure that you build each
antenna with the same T-match wire orientation. In the above drawing, the center pin
goes to the right hand side of the antenna as viewed from the back of the connector.
Make sure all antennas do the same! Proper phase relationship is very important here!
7)
Next is the T-Match assembly. Once again, refer to figure 4 and 5. Starting with the left
T-arm, viewed from the rear, pass a 6-
32 X ½” screw through a #6 internal tooth lock washer
and through a lug on the center conductor of the balun through a second # 6 internal tooth
lock washer, through the T-arm and into the insulator. Do not over-tighten the screw as the
threads of the insulator can be easily damaged. The right side is next. Pass a 6-
32 X ½” screw
through a #6 internal tooth lock washer, then the center conductor of the balun, another #6
internal tooth lock washer, the lug from the N connector, another #6 internal tooth lock washer,
the T-arm and screw into the insulator. Slide the shorting bars over the ends of the driven
elements and over the T arms and measure from the T arm mounting screws to the inside
edge of the shorting bars and set it at 160 mm.
8)
Place a #8 internal tooth lock washer on the screw securing the driven element and the
T-arm support bracket, then the two ground lugs from the balun, then another #8 internal tooth
lock washer and nut. Tighten securely.
9)
Last, pass 8-
32 X 1 ¼” screws through the holes in the shorting bars and place a split
lock washer and nut on the other end. Slide the shorting bars over the ends of the driven
elements and over the T-arms and measure from the boom to the inside edge of the shorting
bars and set it at 6 inches.
Install supplied 3/8” plastic caps on ends of T-arms.
10)
Using supplied cable ties, secure the balun to the boom exactly as shown in Figure 6
and route so they do not touch any of the elements; this will ensure minimum SWR.
Install
supplied plastic caps on ends of boom.
FIGURE 6.
Содержание DSEFO144-12XPOL
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