On Fri, Nov 22, 2019 at 08:22 AM, Dr. David Kirkby, Kirkby Microwave Ltd wrote:
Any male short standard would be nothing like 180 degrees. So the lack of a
properly implemented calibration routine would cause *very significant
errors* with the N connector.
Could this be resolved by using a proper (read: not cheap) N cal kit?
If N connector is only an option and not forced on all users, it seems to me that it would be acceptable to expect the user who wants it to fork for the proper cal kit, at least until the proper cal routines are developed. Since that would be only software, it can be done at a later date.
I am not sure how one is supposed to calibrate a VNA without a cal kit anyways. Simply having the option of simulating an open by not having anything connected to the instrument in the best case only solves the open issue. You still need the short and the 50 Ohm.
