Keysight Technologies FieldFox B Series User Manual page 251

Keysight Handheld Analyzers
N99xxB User's Guide
10 RTSA (Real-time Spectrum Analyzer) Mode—Option 350
RTSA Mode measures signals at the SA RF IN connector.
For a comprehensive RTSA mode tutorial, see Understanding and Applying
Probability of Intercept in Real-time Spectrum Analysis (App Note) at
https://www.keysight.com/us/en/assets/7018-04381/application-notes/599
1-4317.pdf.
Figure 10-1 RTSA Display using Markers
The graphic above shows an RTSA display of a Bluetooth signal using
markers.
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