Keysight Technologies N4373D, User Manual

Page: 40 / 176

Performance Quick Check
38
Keysight
N4373D Lightwave Component Analyzer, User’s Guide
Preparation
1. Turn on the network analyzer and the optical test set.
2. Allow the optical test set and the network analyzer to warm
up (please refer to “Measurement conditions” on page 144 for
the warm up time).
3. If it is not already started, start the network analyzer
application.

Consult the documentation supplied with the network
analyzer if you need help with this step.
For more information on cleaning procedures see “Cleaning” on
page 108 for information on cleaning optical connections, and to
the user guide of the network analyzer for information on
cleaning electrical connections.
For more information on handling using and maintaining the
flexible test port cables, please refer to the “User’s and Service
Guide
Keysight
Technologies N4697E/F 1.85 mm Flexible
Cables for Test Ports”, available on the
Keysight
website.
Network analyzer settings and electrical calibration
1. On the network analyzer make the following settings
(depending on your network analyzer maximum frequency):
• Start Frequency: 10MHz, Stop Frequency: 67 GHz
(50 GHz, 43.5 GHz)
• Number of points: 6700 (5000, 4350)
• IF bandwidth: 2000Hz
• Averages: 1
• RF output power: -15dBm
2 Select “Stepped sweep - sweep moves in discrete steps”.
N O T E Most performance problems are caused by damaged or dirty
electrical or optical connectors.
Before starting the performance verification procedure make
sure all electrical and optical connectors are in excellent
condition.