Keysight N9927-90001 User’s Guide                                                            565
Noise Figure Mode (Option 356 – CPU2 Only)
How to Define a Noise Figure Measurement
Figure 29-3  DUT Measurement Setup – Type [Upconverter] Screen
Used for setting up DUT 
parameters without an 
external preamp
–Type [Upconverter] 
––Performs internal 
frequency upconversion 
(technically, converts IF up 
to RF, but for this case RF 
always = DUT In and IF 
always = DUT Out and so, 
converts RF up to IF)
–Sideband
––LSB: Lower Sideband 
(available for downconverter 
and upconverter)
––USB: Upper Sideband 
(available for downconverter 
and upconverter)
Used for setting up DUT 
parameters with 
an 
external preamp
DUT – Measurement Setup – 
Type [Upconverter] 
DUT – Measurement Setup – 
Type [Upconverter] with External Amplifier (LNA) and User 
Calibration
Preamp