RE: Line impedance measuring & matching -- techniques

From: [email protected] [mailto:[email protected]] On Behalf Of Bertil Bäck:

 

“…So one need to find out what the Ethernet cable impedance is at 1Mhz.  I just did as a article on the Internet said. I put a trim potentiometer in one end of the cable and a Frequency generator in the other end and put in on 1Mhz and square wave. I have a scope on both ends of the cable and trim the potentiometer so I get the best square signal. Then I measure the resistance of the trim potentiometer. This is a very crude way of getting the impedance of the cable.”

 

Am wondering what the results were / what conclusion you came to with regard of using Ethernet type cable?  

(And was it CAT-5, or something else???)

 

-al-