Keysight N9927-90001 User’s Guide 403
Noise Figure Mode (Option 356 – CPU2 Only)
How to Define a Noise Figure Measurement
6.
Perform a Receiver Calibration: (
Cal
>
Run Receiver Cal
and follow
prompts).
7.
Enter DUT setup type:
Meas Setup
>
DUT
>
Type
—
Amplifier
(default),
—
Downconverter
,
—
Upconverter
, or
—
Multi-Stage Converter
8.
Run a User Calibration (i.e., If you are using an external preamp).
(
Cal
>
Run User Cal
and follow prompts).
9.
Use
Measure
to select the type of noise figure measurement:
—
Noise Figure
,
—
Noise Factor
,
—
Gain
,
—
Noise Temperature
, or
—
Y-Factor
10.
Use
Meas Setup
>
Uncertainty
>
Uncert Contributions
to Enable/Disable
Uncertainty Contributions:
—
Jitter Uncert OFF ON
,
—
ENR Uncert OFF ON
,
—
Mismatch Uncert OFF ON
,
—
User Cal Uncert OFF ON
(applies the current User Cal uncertainty to
the current measurement’s uncertainty calculations), and
—
Then
Back
>
Uncert Bars
to
ON
.
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.
a.
Select a
Measure
—choose:
—
Noise Figure
Specify Noise Figure (default) or
—
Noise Factor
Specify a Noise Factor or
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.
Содержание N9913A
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