How is physically possible to get the value of the characteristic impedance of a certain coaxial cable?
Precisely, in my case I have a coax of 50Ohm impedance, and I need to cut it and connect some alligator clips or some tester leads. Now I thought that this variation maybe will change the characteristic impedance of my coax. Since the device I would connect to it gives an accurate value only if connected to 50Ohm cable, do this variation modify it a lot?
Is there a kind of measurement I can do?