Keysight Technologies CXA N9000B, Manual

Page: 77 / 88

N9069C Noise Figure Measurement Guide 77
Measurement Related Tasks and Concepts
Setting the Signal Analyzer to Make a Measurement
Setting up External LO Control
When the frequency converters are included in the measurements, the Noise
Figure Measurement Application can help to control the LO of the DUT and/or
system downconverter that will be used in the measurement system. If the DUT
is a multi-stage converter, only one LO of the DUT can be controlled.
Adding External LO to List
Before setting the external LO control for a DUT or system downconverter, you
first need to add the target LO to the external LO list. You can connect to the
external LO through USB, GPIB, or LAN. In this example, the external LO is
connected through LAN.
Setting up DUT LO or System Downconverter LO
The setting up process for a DUT LO and a system downconverter LO is similar.
Below is an example for setting up the DUT LO.
Step Notes
1. Press
MEAS SETUP
,
Ext LO Setup
.
2. Press
LO Select
.
In this dialog, you can also delete a highlighted
external LO, or verify the connection status of an
existing external LO by pressing
Delete
Highlighted Source
or Select Highlighted
Source as DUT LO .
3. In the
LAN
box of the dialog, enter the
IP Address
and press
Done
.
4. Press
Add Specified IP Address
.
(Optional) You can also add the external LO using
Connection Expert. Press
Run Connection
Expert...
.
Step Notes
1. Press
MEAS SETUP
,
Ext LO Setup
.
2. Press
LO Select
.
3. In the
LAN
box of the dialog, enter the
IP Address
and press
Done
.
4. Press
Add Specified IP Address
.
(Optional) You can also add the external LO using
Connection Expert. Press
Run Connection
Expert...
.