Noise Figure Mode (Option 356 – CPU2 Only)
How to Define a Noise Figure Measurement
6. Perform a Receiver Calibration: (Cal >
7. Enter DUT setup type: Meas Setup >
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.
Keysight N9927-90001 User's Guide
prompts).
—
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
Run Receiver Cal
DUT
>
Type
>
Uncert Contributions
ON,
ON,
ON,
(applies the current User Cal uncertainty to
to ON.
Specify Noise Figure (default) or
Specify a Noise Factor or
and follow
to Enable/Disable
403