Return Loss Measurement Return Loss Measurement
Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Sixth Edition 187
calibraion, or you can use the default setting held in the factory calibration.
•[Ref], the power measured by the Return Loss module’s monitor diode dur-
ing the reflectance calibration in dBm
•[Meas], the power currently measured by the Return loss Module’s internal
monitor diode in dBm
Figure 109 The Calibration Parameters Screens - Monitor Diode
3 Press [Next]. The Calibration parameters screen for User Data appears, as
displayed in Figure 110 . This screen shows current value for the following
quantities:
•[FPDelta], the loss correction, in dB, due to differences between the refer-
ence cable and the measurement cable, such as differences in the front pan-
el 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
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