Keysight Technologies 8163A User Manual

8163A/B, 8164A/B, 8166A/B User’s Guide 193
Return Loss Measurement 7
Figure 113 Measuring the Return Loss of the Reference Cable - Internal Source
Attach the angled connector of the Reference cable to the front panel. The
81610CC Cable needs an 81000SI connector interface at this port.
Tip: For best results and improved repeatability, fix the cable.
2Move to [FPDelta], press [Edit], set the value to 0.000, then press [OK].
3Move to [RLref], press [Edit]. Make sure that the displayed value of
[RLref] is correct. If it is not, move to [RLref], press [Edit], set the value
the return loss value of the reference cable you are using, then press
[OK].
4 Switch on the Laser.
5 Press [Menu]. Move to <Reflectance calibration> and press Enter. The
instrument measures the power reflected by the reference cable. The
[RL] value changes to the same value as entered for [RLref].
Front Panel Delta Calibration
For higher accuracy we recommend that you also calibrate for Front Panel
Delta. This is the difference between the insertion loss of the reference
cable, and the insertion loss of the patchcord used for return loss
measurement. The difference is normally the difference in the front panel
connection, which can change with each reconnection.
8161x
8163B Lightwave Multimeter
Keysight 81610CC Reference Cable

Keysight Technologies 8163A Specifications

General

Brand	Keysight Technologies
Model	8163A
Category	Multimeter
Language	English