I would like to build a coax cable tester and would like to use an Arduino with an LCD display. I am often going through old sections of coax cable, mostly 50 ohm terminated with PL239 connecters, but there could be others.
I would like to be able to:
* Measure the characteristic impedance of the coax cable under test
* Determine the length of the coax cable under test
* Simple connectivity test from one end to the other. It would be cool to send rf data from one end of the cable to the other end, and determine if the cable is functional, but I suspect this would be harder to do. Not necessary in the first version.
I'm not an expert with the arduino or electronics for that mater but if someone can get me going in the right direction I should be able to figure it out.
I found this page http://www.irb.hr/users/stipcevi/ele/coaxweb/index.html
but I'm not sure if this is adaptable for use with the arduino.
this page is a discussion of characteristic impedance of cable http://home.mira.net/~marcop/ciocahalf.htm