8163A/B, 8164A/B, 8166A/B User’s Guide 191
Return Loss Measurement 7
Termination Calibration
Use this procedure to calibrate the Return Loss module against a
terminated cable, that is when there are no reflections returning from its
end.
1 Making sure all the connectors are clean, set up the instrument as
shown in Figure 110 on page -191 if you are using an External Source,
Figure 110 Termination Calibration - External source
or Figure 111 on page -191 if you are using an internal source.
Figure 111 Termination Calibration - Internal Source
2 Terminate the cable so that there are no reflections coming from the
end.
Termination
8161x 8163B Lightwave MultimeterLaser
Source
81113PC
patchcord with FC/PC
output connector
8161x
8163B Lightwave Multimeter
Termination
patchcord with FC/PC
output connector
If you are using an external source, you must fix its output cable to
ensure minimum cable movement.
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