Return Loss Measurement Return Loss Measurement
Agilent 8163A/B, 8164A/B, and 8166A/B User’s Guide, Fourth Edition 161
Calibration using the Agilent 81610CC
Reference Cable
Use the Agilent 816100CC Refernce Cable to make a Reflectance
Calibration, and the measurement patchcord to make a Termination
Calibration.
To measure insertion loss and the front panel delta of the system (see
“Calculating the Front Panel Delta” on page 176), you must also
measure the insertion loss of the Reference Cable and mesurement
patchcord.
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 95 if you are using an External Source,
Figure 95 Measuring the Return Loss of the Reference Cable - External Source
or Figure 96 if you are using an internal source
(Agilent 81611A/2A/3A/4A Return Loss modules only).
Figure 96 Measuring the Return Loss of the Reference Cable - Internal Source
Attach the high return loss connector of the reference cable to the
output.
TIP For best results and improved repeatability, fix the cable.
2 Move to [FPDelta], press [Edit], set the value to 0.000, then press
[OK].
Agilent 81610CC Reference Cable
8161x 8163B Lightwave MultimeterLaser
Source
Agilent 81113PC
8161x
8163B Lightwave Multimeter
Agilent 81610CC Reference Cable
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