Keysight B Series - How to Select Spectrum Emission Mask (SEM) Measurement

Keysight N9938-90003 User’s Guide 183
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)
Spectrum Emission Mask (SEM) — (SA Mode Only)
Figure 7-20 SEM Example FAIL Data - Absolute Limit (Blue), Relative Limit (Violet), Trace
(Yellow), and Tabular Data
How to select Spectrum Emission Mask (SEM) Measurement
—Press Measure 1
—Then Channel Measurements
—Then Spectrum Emission Mask
When SEM is selected, the following settings are maintained from a previous
measurement: Center Frequency, Preamp ON|OFF, and RF Attenuation.
Setting up the FieldFox for Spectrum Emission Mask (SEM) Measurement
1. Press Measure 1 > Channel Measurements > Spectrum Emission Mask
2. Press Meas Setup 4 then optionally select:
— Averaging
Enable/disables averaging and sets the number of trace
averages (Default is OFF).
— Meas Type
Then select one of the following: