True Ladder Line
Photos and Comments

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600 Ohm Ladder Line feeding a 160 meter doublet at 75 feet.



W5TM's Two 5/8th waves in phase on 80 meters at 125 Feet
Ladder Line hanging down from the center


Ladder Line run from ground support near the tower
over a fence line, about 6 feet off the ground.

We are often asked how do you support the Ladder Line on horizontal
runs above the ground and bring it into the Radio room or Ham Shack.
Below are examples on how KD5JYB conquered these two problems.


"T" Post is made of PVC pipe supporting a PVC "T", the material is 1/2" ID.
The vertical portion is supported by the fence. Note that the Ladder Line Spacer is
placed inside the PVC "T" and held in place with electrical black plastic tape.


Here KD5JYB has used "Threw the Wall" Coax Feed Threw's
obtained from Radio Shack ("Wall-thru" lead-in tube).

Notice in the right hand picture that there is no means of disconnecting the line from the radio.
Plans are to install a large DPDT Knife switch, one side going to Ground the other to Antenna Tuner.


Close up photos of Ladder line Spacer, Center and End insulators

Close up showing Center Insulator, one Spacer and wire.
Note there are no splices, wire is one continuous piece
from Ladder Line to Doublet.



Ladder Line spacer
Right hand photo shows the end of the spacer,
and our unique means of securing the wire to the spacer.



Center Insulator


End Insulator




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