HP 8753E Service Manual page 429

This is the most accurate error-correction procedure. Since the
Note
analyzer takes both forward and reverse sweeps, this procedure
takes more time than the other correction procedures.
1. Set any measurement parameters that you want for the device
measurement: power, format, number of points, IF bandwidth.
2. To access the measurement correction menus, press:
3. If your calibration kit is different than the kit specified under the
select the correction type, press:
4 To
5. Connect a shielded open circuit to PORT 1.