The attached photos show the setup and calibration standards.
Note that Load calibration is always 50 ohms; the 200-ohm device is used to check that setup and calibration are OK before beginning a measurement. It is NOT part of the calibration.
If I don't "see" 200 ohms, as per the attachment, for a Reflection setup or 9.54 dB loss for a Transmission setup, I know that something is wrong.
Kerry VK2TIL.
