Return Loss Measurement Return Loss Measurement
Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Sixth Edition 177
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 93 if you are using an External Source.
Figure 93 Reflectance Calibration - External Source
or Figure 94 if you are using an internal source
(Agilent 81611A/2A/3A/4A Return Loss modules only).
Figure 94 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