[Antennas] Full legal Limit cable

[Lefczik, Larry D]

The link here may help answer your question.
I think your first goal is to identify the cable you have if that's what
you intend to use.  
http://www.universal-radio.com/catalog/cable/coaxperf.html

If you plan to use a 1/4 wave Inverted-L, plan on about 30+j0 Ohms.  If
you go with a 3/8 wave, plan on adding a series capacitor of about 200
pF to get you to 50+j0 Ohms. 

>- 
>- What coaxial cables are capable of feeding my antenna at the 
>- full legal 
>- (Ham) limit?  

>- I am constructing an inverted "L", end fed at about 50 to 75 
>- ohms.  I 
>- want to make sure it can handle the output of my 4-1000A 
>- linear at the 
>- full legal limit on SSB.
>- 
>- I have a large coil of solid outer conductor (corrugated aluminum, I 
>- think) coax that is just slightly larger in OD than RG58 but 
>- it has no 
>- markings on it.  Is there an easy way to measure the impedance?