I have been making new cal kit files for non-Keysight cal kits by editing existing files with the Cal Kit Editor. I've noticed that the Max Frequency in all the cal kits I looked at is 999000 MHz even though the specified maximum frequency of the cal kit is something less.
For example, the 85032B is a 6 GHz cal kit but the factory cal kit file shows the Max Frequency is 999000 MHz. Why is it not 6000 MHz?
Can someone explain this?