What is a maximum length of 50 ohm coaxial cable that can define the calibration plane?
I would like to use SOL at the end of a 100 foot length of 50 ohm coaxial cable to define the calibration plane. This is so I can measure at a remote distance the effective S11 parameter of an antenna. Is there a limit as to how long the cable can be? What issues should I be aware of regarding calibration accuracy, repeatability?