Finding the matching connector
The quality of connectors is defined via three classes. Production quality, Instrument quality and metrology quality.
Connectors are to be checked regularly for full integrity - best before every use. Plugs should be clean and without any scratches and dents.
The largest frequency range in which a coaxial cable keeps to the TEM-mode can be calculated with the a formula.
maximum power-load | maximum number of mating cycles | passive intermodulation (PIM)