Re: [TenTec] Tuner parallel line into the shack

["R. Eric Sluder" <resluder@yahoo.com>]

I'm glad I kept my book on telephone transmission lines.  Its dated circa 
1950's and addresses open wire line.  When you mentioned the half twist I 
remembered reading about that in the book.  I have never equated that to radio 
open wire until now.  I'll be digging it out for some tips on open wire line 
install.

My father replaced 100's of miles of it in the 60's with multi pair copper 
cable.  He told me there were techniques to keep it lashed into place for pole 
bypass and splicing techniques that kept the impedance in check.  He called the 
stuff "iron wire" and it had be pretty tough because he hated having to cut 
it.  Not because it was so tough, but because of the recoil generated as it was 
released.  They had stretchers and clamps to keep it taunt while cutting, but 
they didn't always work.

Imagine if we had some of that today and enough poles and insulators to bring 
it to your shack.  I suspect icing would be the least of your concerns. 

Eric
W9WLW

Sent from Yahoo! Mail on Android

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