I have a lot of 'donated' coax that has been given to me with unknown provenance. I'm wondering what things I can do that can determine whether I keep it or send to the tip? Some of the things I have thought about doing are:
- Physical inspection - look for oxidisation of shielding braid, damage to plastic sheath
- Continuity testing, short circuits between inner and outer.
- plug into dummy load and do an SWR sweep
- Measure cable loss and compare against specifications
The big one is cable loss - Any thoughts on how I can measure that cheaply? I don't have any calibrated test equipment for that?
Any other tests I should think about?