Keysight M9383B Measurement Manual page 44

Basic Measurements
Making Measurements
— (S) the measurements are in S parameters (rather than Y or Z)
— (DB) the values are given in decibel/angle. Instead of DB, you can have RI
— (50) the characteristic impedance is 50 ohms
If there is not a first line header, the default format is GHz, S-parameters,
and magnitude/angle.
1. Create s2p files in Notepad in the format shown above.
2. In theVXG Output area, set the Frequency to 10 GHz and Power to 
3. Select the Signal Block and set:
44
(real/imaginary) or MA (magnitude/angle)
–20 dBm.
— Vector Modulation Signal Mode to Multitone
— Tones to 21
— Tone Spacing to 100 MHz
— Select Enable Vector Modulation Signal
M9383B/84B Measurement Guide