Return Loss Measurement Return Loss Measurement
Agilent 8163A/B, 8164A/B, and 8166A/B User’s Guide, Fourth Edition 165
Termination Calibration using the Measurement
Patchcord
Use this procedure to calibrate the Return Loss module against a
terminated patchcord, 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 101 if you are using an External Source,
Figure 101 Measuring the Termination Parameter - External Source
or Figure 102 if you are using an internal source
(Agilent 81611A/2A/3A/4A Return Loss modules only).
Figure 102 Measuring the Termination Parameter - Internal Source
2 Terminate the measurement patchcord so that there are no
reflections coming from the end.
TIP You can do this by wrapping the fiber five times around the shaft of
a screwdriver (or some similar object with a diameter of between
5mm and 7mm).
3 Move to [Terminated calibration] and press Enter. The instrument
measures the power reflected by the component, and sets the
[Para] values used by the Return Loss monitor’s power sensor and
monitor diode.
measurement patchcord
Termination
8161x 8163B Lightwave MultimeterLaser
Source
Agilent 81113PC
8161x
8163B Lightwave Multimeter
Termination
measurement patchcord
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