Keysight Technologies N9040B UXA Manual page 26

Making Noise Figure Measurements
Making Frequency Converter Measurements
Step
1. Configure the system
calibration
2. Configure the amplitude
parameters
3. Perform a calibration
26
Action
— Connect the calibration
system as shown in
Figure 2-3 on page 21.
AMPTD
— Press , select the
Attenuation
tab and set
the value used in the
measurement stage.
MEAS SETUP
— Press
Cal Setup
select the
User Cal
, and set the
Min Atten Max
and
Atten
values.
CALIBRATE
— Press .
Notes
If you have U7227-Series USB Preamplifier, see
"Guide for Using U7227-Series USB
Preamplifier and the Internal
Preamplifier inside X-Series Signal
Analyzer" on page 41
system configurations for your test case, and
turn on the internal preamplifier, set the internal
attenuation range for calibration, and set the
internal attenuation for the measurement if
needed.
The attenuation value used in the measurement
should be in the range of Min Atten and Max
Atten values.
,
tab,
You will be asked to confirm the calibration. See
the following figure for results after calibration.
When calibration is complete the measurement
system is calibrated at the mixer output. The red
UNCAL text changes to green CAL text in the top
right side of the display.
N9069C Noise Figure Measurement Guide
to find the proper