[TowerTalk] Open wire lines

[Randy]

There's some interesting ancient information including 2,4, and 6 wire 
open lines (and MUCH other stuff) freely available here:

http://www.lulu.com/product/download/radio-antenna-engineering/188777

"Radio Antenna Engineering" by Edmund Laport.

It can be downloaded from that URL, or they can print a copy in book 
form for around $20 IIRC.

(For whatever reason, I'm missing the original post, which is why I 
replied to this one, Jim)

73,
Randy
KZ4RV

jimlux wrote:
> David J. Sourdis wrote:
>   
>> I am looking for information on open wire lines. I want more than is available on the Antenna Book or the one paragraph information on LBDXing saying practically "better not". Maybe some hints a kinks, the A to Z on the subject.
>>  
>> Thanks for any information.
>>
>>     
>
> Are you looking for equations for impedance? (There's the one equation.. 
> Z is approximately 276*log(ratio of diameter to spacing.  There's a 
> formula involving cosh(x) that is more exact. )
> http://www.rfcafe.com/references/electrical/transmission-lines.htm has 
> lots of other configurations
>
>   Construction details?
>
> Usage?
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