Return Loss Measurement Return Loss Measurement
158 Agilent 8163A/B, 8164A/B, and 8166A/B User’s Guide, Fourth Edition
Calibration using the Agilent 81000BR
Reference Reflector
You can use the agilent 81000BR Reference Reflector to make a
Reflectance Calibration, and a Termination Calibration.
Reflectance Calibration
Use this procedure to calibrate the Return Loss module against a
component of known return loss.
1 Making sure all the connectors are clean, set up the instrument as
shown in Figure 90 if you are using an External Source.
Figure 90 Reflectance Calibration - External Source
or Figure 91 if you are using an internal source
(Agilent 81611A/2A/3A/4A Return Loss modules only).
Figure 91 Reflection Calibration - Internal Source
TIP For best results and higher repeatability, fix the cable.
2 Attach a component with a known return loss to the end of the
patchcord.
TIP The Agilent 81000BR Back Reflector is such a component, offering a
return loss of 0.18 ± 0.1 dB.
3 Move to the Return Loss channel, then press [Details]
4 Move to [FPDelta], press [Edit], set the value to 0.000, then press
[OK].
Laser
Agilent 81113PC
Agilent 81000BR Agilent 81000FI
Agilent 81000UM
8161x 8163B Lightwave MultimeterLaser
Source
Agilent 81113PC
8161x
8163B Lightwave Multimeter
Agilent 81113PC
Agilent 81000BR Agilent 81000FI
Agilent 81000UM
8161x
8163B Lightwave Multimeter
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