562 Keysight N9927-90001 User’s Guide
Noise Figure Mode (Option 356 – CPU2 Only)
How to Define a Noise Figure Measurement
——User Cal Uncert. Enable/disable the User Cal
Uncertainty.
——Back
to return to previous menu.
— Uncert Cover
Sets the uncertainty coverage value for the
current settings.
Then choose: 1
σ, 2σ (default), or 3σ.
— Uncert Bars
Enables/disables the uncertainty calculator
uncertainty bars values for the current settings.
— Back
to return to previous menu.
How to Use DUT Measurement Setups
Noise figure Option 356 has four predefined measurement setups:
—Amplifier
—Downconverter
—Upconverter
— Multi-Stage Converter
Refer to “Using Measure Setup to Choose DUT Type” on page 562.
Each of the four measurements has frequency context and loss compensation
softkeys that can used to optimize the DUT’s noise figure measurement. Refer
to “DUT Type and Frequency Context” on page 567 and to “DUT Type Loss
Compensation” on page 572.
Using Measure Setup to Choose DUT Type
This section contains the following:
—Setting DUT
> Type [Amplifier], see Figure 29-1 on page 563
—Setting DUT
> Type [Downconverter], see Figure 29-2 on page 564
—Setting DUT
> Type [Upconverter], see Figure 29-3 on page 565
—Setting DUT
> Type [Multi-Stage Converter], see Figure 29-4 on page 566
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