Keysight A Series User Manual page 658

Noise Figure Mode (Option 356 – CPU2 Only)
How to Define a Noise Figure Measurement
2. Select Measure Setup—choose:
658
— Gain Specify Gain or
— Noise Temperature
— YFactor Specify Y-Factor
30 Then modify the settings based on the selected noise figure type
— Noise Source or "DUT
page 661, or "Uncertainty" on page
Opens a menu of softkeys to define the Noise Figure's ENR Mode
Spot or Table and uncertainty values.
Then choose:
— ENR Mode Spot Table
noise source you are using as a table of values or as a
single spot value. The values held in the table can be used
for measurements at a range of frequencies as well as at a
fixed frequency.
The single spot value is used either for measurements at a
single frequency, or for measurements across a range of
frequencies that is narrow enough such that the ENR value
does not change significantly across that range. (Default is
Table).
— ENR Spot Values
either for measurements at a single frequency or for
measurements across a range of frequencies that is narrow
enough such that the ENR value does not change
significantly across that range (Inactive with ENR Mode set
to Table).
Then choose:
——ENR
——ENR Uncert.
——On |
——Off |
——ENR Uncert. Cov. [2
Specify Noise Temperature or
or" on page 660, "Integration
661.
You can enter ENR data for the
Opens a menu to enter a spot value
sets the ENR spot value in dB (default is
15 dB).
sets the ENR spot uncertainty value
in dB (default is 0.000 dB).
Γ
| sets the On value (hot) of the ENR spot
Ω Γ
value's 50 match,
Γ
| sets the Off value (cold) of the ENR spot
Ω Γ
value's 50 match,
σ
value of the ENR uncertainty coverage.
σ σ
Then choose: 1 , 2 (default), or
Keysight N9927-90020 User's Guide
or" on
(0.000 to 1.000).
(0.000 to 1.000).
] Opens a menu to set the
σ
3 .