Agilent Technologies 8163A User Guide

Return Loss Measurement Getting Started With Return Loss
142 Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement
System, & Agilent 8166A Lightwave Multichannel System, Fourth Edition
Measuring the Front Panel Delta
To measure the front panel delta, you must measure the power transmitted
through the measurement cable.
13 Connect the measurement cable to a Power Sensor as shown in Figure 96.
14 As you have already, in Step 9 on page 141, set the [Ref] parameter to the
power transmitted through the reference cable, the Power Sensor channell
displays a power value in dB that is equal to the front panel delta.
Enter the power value in dB, [P], displayed by the power sensor, as the front
panel delta. Move to the Return Loss module channel, press [Menu], move to
<FPDelta>, enter the power value in dB and press Enter.
15 Press [Close] to exit from the menu.
Measuring the Return Loss
The value shown in the result field is the return loss.
16 Attach the DUT. In this example the DUT is a connector pair.
Terminate your system close to the DUT to make sure that you are only
measuring reflections from the DUT.
It is not necessary to make new calibration measurements for each DUT. You can
make the calibration measurements for your system, and then measure the return
loss of many devices.
Figure 96 Measuring the Power Transmitted through the Measurement Cable
81534A
Laser
Source
8163A Lightwave Multimeter
Agilent 81101AC
Agilent 81109AC
Power
Sensor
8163A Lightwave Multimeter
Measurement Cable
Figure 97 Measuring the Return Loss of the DUT (in this example: a Connector Pair)
81534A
Laser
Source
8163A Lightwave Multimeter
Agilent 81101AC
Agilent 81109AC
Agilent 81000AI
Agilent 81000UM
Agilent 81101AC
T
ermination
Measurement Cable

Agilent Technologies 8163A Specifications

General

Brand	Agilent Technologies
Model	8163A
Category	Measuring Instruments
Language	English