Need some helps
We have an E-cal N4431A to calibrate E5071C and other PNA. We use USB slot of E-cal to connect to ENA and PNAs, at same time we use 85097B to connect VNA 8753ES and 8720ES. Recently the USB port was damaged. Can we use 85097B to link parallel of PNA and ENA for the calibration? Is this E-cal only be used in USB mode with PNA and ENA?