402 Keysight N9927-90001 User’s Guide
Noise Figure Mode (Option 356 – CPU2 Only)
How to Define a Noise Figure Measurement
How to Define a Noise Figure Measurement
The Option 356 Noise Figure mode uses the Y-factor method to calculate the
noise figure.
This section contains the following:
—
“Example: Typical Noise Figure Measurement Procedure” on page 402
—
“Overview of Softkey Menus” on page 403
—
“How to Use DUT Measurement Setups” on page 410
—
“Single / Continuous / Restart” on page 422
—
—
“Resolution Bandwidth (Res BW)” on page 423
—
—
“Calculating Noise Figure Measurement Uncertainty” on page 424
—
“Using ENR Tables” on page 429
—
“Using Markers (Noise Figure)” on page 432
Example: Typical Noise Figure Measurement Procedure
This section briefly reviews the steps in setting up a noise figure measurement.
If you are not familiar with this process or would like more information, refer to
“Overview of Softkey Menus” on page 403
Measurement Setups” on page 410
.
1.
Set up a Noise Source ENR Table:
(
Meas Setup
>
Noise Source
>
ENR Table Edit/Save/Recall
).
2.
Set the resolution bandwidth:
BW
>
Res BW
3.
Set the frequency range:
Freq/Dist
>
—
Start
,
—
Stop
,
—
Center
, and
—
Span
4.
Set the number of points:
Sweep
>
Points
(minimum = 3 points, maximum
= 1001 points, default = 21)
5.
Use
Meas Setup
>
Integration
Setup Integration (See also
—
Max. Time/Pt.
(Available when Mode = Auto) or
—
Time/Pt.
(available when Mode = Fixed)
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