Keysight Technologies C Series User Manual page 684

Noise Figure Mode (Option 356)
How to Define a Noise Figure Measurement
8. Run a User Calibration (i.e., If you are using an external preamp).
9. Use Measure to select the type of noise figure measurement:
10.Use Meas Setup >
Overview of Softkey Menus
This sections describes the Noise Figure's Measure, Measure Setup softkeys,
and related sub-menu softkeys.
1. Define a measurement type.
Noise Figure has asymmetrical uncertainty (i.e., log measurement). Noise
Factor and Noise Temperature have symmetrical uncertainty (i.e., linear
measurement). Uncertainty is not displayed for Gain and Y-Factor.
682
— Amplifier (default),
— Downconverter,
— Upconverter, or
— Multi-Stage Converter
(Cal >Run User Cal and follow prompts).
— Noise Figure,
— Noise Factor,
— Gain,
— Noise Temperature, or
— Y-Factor
Uncertainty
Uncertainty Contributions:
— Jitter Uncert OFF
— ENR Uncert OFF
— Mismatch Uncert OFF
— User Cal Uncert OFF ON
the current measurement's uncertainty calculations), and
— Then Back Uncert Bars
>
a. Select a Measure—choose:
— Noise Figure
— Noise Factor
— Gain Specify Gain or
— Noise Temperature
— YFactor Specify Y-Factor
Uncert Contributions
>
ON,
ON,
ON,
(applies the current User Cal uncertainty to
to ON.
Specify Noise Figure (default) or
Specify a Noise Factor or
Specify Noise Temperature or
Keysight N9915-90020 User's Guide
to Enable/Disable