Keysight A Series User Manual page 666

Noise Figure Mode (Option 356 – CPU2 Only)
How to Define a Noise Figure Measurement
Figure 30-2 DUT Measurement Setup – Type [Downconverter] Screen
DUT – Measurement Setup –
DUT – Measurement Setup –
Calibration
666
Type [Downconverter]
with External Amplifier
Type [Downconverter]
Used for setting up DUT
parameters without an
external preamp
– Type [Downconverter]
––Performs internal
frequency downconversion
(converts RF down to IF)
–Sideband:
––LSB: Lower Sideband
(available for downconverter
and upconverter)
––USB: Upper Sideband
(available for downconverter
and upconverter)
––DSB: Double Sideband
(available for
downconverter; averages
LSB and USB ENR values)
User
(LNA) and
Used for setting up DUT
parameters with an
external preamp
Keysight N9927-90020 User's Guide