[Antennas] Running Ladder Line Through a Wall

[KA8VIT]

Hi Bob,

The insulation on mine remains intact.  Only the ends
of the shield are soldered together.  Then ensures a good
ground along the length of the coax.

As for transitioning back to ladder-line...  I can't do that as
there is too much wire, pipes etc to get past to reach my
operating position.

Attached are the pics stripped by the reflector.

72/73,

Bill  KA8VIT

*********** REPLY SEPARATOR  ***********

On 9/8/2004 at 10:07 AM Robert Lay wrote:

>Dear Kevin,
>
>I have a method similar to that described by KA8VIT with a couple of
>important differences.
>
>I use two coax lines - each is long enough to go from the outside to the
>inside of the wall. As soon as they are through the wall, I transition
back
>to ladder line. [This keeps the losses in the coax to a minimum.]
>
>I do NOT solder the coax braids together - I leave the outer insulation
>intact.
>
>I ground the two shields of the two coaxes to a ground frame outside. This
>has the effect of providing a very short path to earth for any minor
>induced
>lightning surges. [You can draw your own conclusions about the relative
>advantages or disadvantages of this.]
>
>I use a copper tubing  line from the ground post on my balanced tuner to
>the
>outside ground frame as the single ground path from my rig and tuner to
the
>outside earthing.
>
>I have had as many as 3 separate balanced lines coming from outside to
>inside via a PVC pipe through the wall, using this method.
>
>Bob Lay (W9DMK), Dahlgren, VA
>w9dmk at crosslink.net
>http://www.qsl.net/w9dmk
>
>- - - 
>
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>Larry Wilson KE1HZ antennas-owner at mailman.qth.net
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Bill Chaikin, KA8VIT
ka8vit at ix.netcom.com
www.qsl.net/ka8vit

QRP-L NBR: 2596