Connection to the End-Insulators
Install hardware and wire element ends as shown in
Figure 4
.
Figure 4: Assembled End Bracket
With the DX Engineering.com lettering facing down, and the notched edge of the end slot facing
up, route the wire down through the notched end slot, back up through the next slot, down
around the bracket and back up through the slot between the mounting hardware. Make the
terminal connections placing both wire lugs on the bolt assembly. Repeat for the opposite side.
Use the supplied Dacron rope to attach the end brackets to a suitable mounting point using a no-
slip knot such as depicted in
Figure 5
.
Figure 5
:
Suggested Knot for End Brackets
Connections to the Tuner
If routing the ladder feedline to the operating position and your tuner, keep the feedline in the
shack as short as possible and away from metal chassis or cabinets to prevent interaction and
unwanted RFI. Connect the ladder feedline to the balanced, two-terminal inputs on your tuner.
- 8 -
External tuners typically have inexpensive built-in 4:1 voltage baluns to convert the balanced
feedline to unbalanced, allowing the use of 50
Ω
coax for connection to your rig. Current baluns,
rather than voltage baluns, are a much better choice. Current baluns provide better balance,
almost always have lower loss, and tolerate load impedance and balance variations much better
than voltage baluns. To use a current balun, you will probably have to use one that is external to
the tuner.
