R&S FSW Series, User Manual

Page: 235 / 1450

Measurements and Results
R&S
®
FSW
235 User Manual 1173.9411.02 ─ 43
5. Select "Noise Power Measurement".
6. Select the "NPR Config" softkey.
7. Specify the "Channel Bandwidth" = 72 MHz .
8. Enter the "Number of notches" = 2 .
9. For notch 1, define:
● "Frequency Offset" = -12.2 MHz
● "Notch Bandwidth Absolute" = 3.6 MHz
10. For notch 2, define:
● "Frequency Offset" = +12.2 MHz
● "Notch Bandwidth Relative" = 5 % (for demonstration purposes; the effect is the
same as "Notch Bandwidth Absolute" = 3.6 MHz )
The channel and two notches are indicated in the spectrum diagram, and the noise
power ratio for each notch is indicated in the result summary.
7.6 Spectrum Emission Mask (SEM) Measurement
Spectrum Emission Mask (SEM) measurements monitor compliance with a spectral
mask.
● About the Measurement ........................................................................................236
● Typical Applications ...............................................................................................236
● SEM Results ......................................................................................................... 236
● SEM Basics ...........................................................................................................239
● SEM Configuration ................................................................................................250
Spectrum Emission Mask (SEM) Measurement