Agilent Technologies 8163A User Guide

Getting Started With Return Loss Return Loss Measurement
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System, & Agilent 8166A Lightwave
Multichannel System, Fourth Edition
135
Taking Calibration Measurements
Before measuring the reflection factor of a device under test (DUT), take some
calibration measurements. These eliminate wavelength dependencies, coupler
directivity, insertion losses, backscattering and other non-ideal characteristics of
the system.
How to Make Return Loss
Measurements with the
HP 81534A Return Loss
Module
The HP 81534A Return Loss Module includes a power sensor and a coupler in
one module for use in the Agilent 8163A Lightwave Multimeter and
Agilent 8164A Lightwave Measurement System for the making of return loss
measurements.
NOTE The Agilent 8166A Lightwave Multichannel System does not support the
HP 81534A Return Loss Module.
NOTE We recommend that you choose an averaging time of 1 second or longer. Press
[Menu], move to <Averaging Time>, move to your chosen averaging time, and
press Enter.
Calibrating a Reference Cable
The return loss setup described here uses a HP 81553SM source, inserted as a
second module in the same mainframe as the return loss module.
It is recommended that you attach a patchcord to the return loss module output.
CAUTION Agilent Technologies supplies patchcords with a Diamond HMS-10/Agilent/HRL
high return loss connector on one end. These patchcords are necessary so that the
Figure 86 The Contents of the HP 81534A Return Loss Modules
INPUT
SOURCE
OUTPUT 9/125 µm
HP 81534A
Reflection-free
Termination

Agilent Technologies 8163A Specifications

General

Brand	Agilent Technologies
Model	8163A
Category	Measuring Instruments
Language	English