8163A/B, 8164A/B, 8166A/B User’s Guide 201
Return Loss Measurement 7
Figure 123 The Calibration Parameters Screens - Monitor Diode
3 Press [Next]. The Calibration parameters screen for User Data appears,
as displayed in Figure 124 on page -202. This screen shows current
value for the following quantities:
• [FPDelta], the loss correction, in dB, due to differences between the
reference cable and the measurement cable, such as differences in
the front panel connector.
• [RLref] the value of the return loss of the reference relector used. If
you areusing a reference cable, this value will be around 14.6 dB