[UK-CONTEST] OT Slightly...COAX Measurements

Adrian Rees rees.a at btconnect.com
Wed Mar 11 08:19:44 PDT 2009


I know this is O/T but my guess is that some of you guys on here will know.....
 
What I want to know is how do I calculate as well as measure the performance of an unknown piece of coax, without resorting to very expensive test gear ?
 
What I want to measure is loss / frequency, impedance and if possible Velocity Factor.
 
(Just that I have come accross a oile of what appears to be Heliax, but isn't stamped or marked as such).
 
Answers off list if the above offends....
 
Ta
 
Adrian MW1LCR


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