Keysight x-series User Reference Manual page 728

10 Monitor Spectrum Measurement
Dependencies
In Monitor Spectrum, there are five parameters with some interdependencies (limits and couplings). The
diagram below shows the interdependencies:
These dependencies are detailed in the key descriptions for Spectrum RBW and Span.
The measurement time is determined by the Span as shown in the table below and is annotated in the
lower right corner of the Spectrum display. If this time is longer than the Meas Time that is set for the
meters, the meters will use the Meas Time of the Spectrum display.
Spectrum RBW Meas Time
10 Hz 268.5 ms
30 Hz 82.99 ms
100 Hz 26.85 ms
300 Hz 8.299 ms
1 kHz 2.685 ms
3 kHz 829.9 µs
10 kHz 268.5 µs
30 kHz 82.99 µs
100 kHz 26.85 µs
728 EMI Receiver Mode Reference