Return Loss Measurement Return Loss Measurement
Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Sixth Edition 183
front panel delta of the measurement system.
• Press [Close] to exit from the menu.
3 Move to the Return Loss module channel:
• Press [Menu], move to <FPDelta>, press [OK]
• Enter the power value in dB, [P], displayed by the power sensor, as the front
panel delta, then press [OK].
• Press [Close] to exit from the menu.
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 104 if you are using an External Source,
Figure 104 Measuring the Termination Parameter - External Source
or Figure 105 if you are using an internal source
(Agilent 81611A/2A/3A/4A Return Loss modules only).
Figure 105 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).
measurement patchcord
Termination
8161x 8163B Lightwave MultimeterLaser
Source
Agilent 81113PC
8161x
8163B Lightwave Multimeter
Termination
measurement patchcord
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