[TowerTalk] Using Coax as Ladder Line

[David Gilbert]

What it buys you is a fairly good way to get a balanced line through the 
wall without severely unbalancing the line or coupling RF to wood, 
metal, etc.  The short length of the coax going through the wall adds 
insignificant loss at HF frequencies.

Dave  AB7E



Dan Zimmerman N3OX wrote:
>> I saw something somewhere about using coax as ladder line to get out of your house.  >Seems like the center leads of a pair of coax were connected as if they were the ladderline at >the tuner and the shields tied together and then to ground at the station.  The ends outside of >the house then had the two center leads tied to the real ladderline and the shields tied >together at that point also.
>>     
>
> Yes, you can do this to make balanced shielded line, but it doesn't
> buy you a whole lot.  It has basically the same loss as a single coax
> run, which can be quite a lot if you're using open wire or window line
> to feed a multiband antenna with a tuner.
>
>
> 73,
> Dan
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