Return Loss Measurement Getting Started With Return Loss
138 Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement
System, & Agilent 8166A Lightwave Multichannel System, Fourth Edition
Measuring the Reflection Reference
6 Attach a component with a known return loss to the end of the patchcord as
shown in Figure 89. The Agilent 81000BR Back Reflector is such a
component, offering a return loss of 0.18 ± 0.1 dB.
7 Press [Menu] to access the menu.
8 Move to <FPDelta>, set the value to 0.000, and press Enter.
9 Move to <RLref> and make sure that the displayed value is correct. Set
<RLref> to the value of the return loss of the reference reflection you are using.
For example, if you are using the Agilent 81000BR reference reflector, set
<RLref> to 0.18 dB.
10 Move to <Reflectance Calibration> and press Enter. The instrument measures
the power reflected by the component. The overview screen for the return loss
Figure 89 Measuring the Reflection Reference
81534A
Laser
Source
8163A Lightwave Multimeter
Agilent 81101AC
Agilent 81109AC
Agilent 81000BR
Agilent 81000AI
Agilent 81000UM
Figure 90 Measuring the Reflection Reference
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