Measurements and Results
R&S
®
FSVA3000/ R&S
®
FSV3000
270User Manual 1178.8520.02 ─ 01
Both dialog boxes are identical except for the "Percent Marker" setting, which is only
available for CCDF measurements.
Percent Marker (CCDF only).......................................................................................270
Analysis Bandwidth ....................................................................................................270
Number of Samples ................................................................................................... 270
Gated Trigger ............................................................................................................. 270
Edit Gate Ranges .......................................................................................................271
Adjust Settings ........................................................................................................... 271
Percent Marker (CCDF only)
Defines a probability value. Thus, the power which is exceeded with a given probability
can be determined very easily. If marker 1 is deactivated, it is switched on automati-
cally.
Remote command:
CALCulate<n>:MARKer<m>:Y:PERCent on page 839
Analysis Bandwidth
Defines the analysis bandwidth.
For correct measurement of the signal statistics, the analysis bandwidth has to be
wider than the signal bandwidth in order to measure the peaks of the signal amplitude
correctly. To avoid influencing the peak amplitudes, the video bandwidth is automati-
cally set to 10 MHz. The sample detector is used for detecting the video voltage.
The calculated measurement time is displayed for reference only.
Remote command:
[SENSe:]BANDwidth[:RESolution] on page 892
Number of Samples
Defines the number of power measurements that are taken into account for the statis-
tics.
For statistics measurements with the R&S FSV/A, the number of samples to be mea-
sured is defined instead of the sweep time. Since only statistically independent sam-
ples contribute to statistics, the sweep or measurement time is calculated automatically
and displayed in the channel bar ( "Meas Time" ). The samples are statistically inde-
pendent if the time difference is at least 1/RBW. The measurement time is, therefore,
expressed as follows:
Meas Time = N
Samples
/RBW
Remote command:
CALCulate<n>:STATistics:NSAMples on page 839
Gated Trigger
Activates and deactivates gating for statistics functions for the ACP and the CCDF
measurements. If activated, the trigger source is changed to "External Trigger 1" . The
gate ranges are defined using the Edit Gate Ranges function.
Remote command:
[SENSe:]SWEep:EGATe:TRACe<t>[:STATe<gr>] on page 841
Statistical Measurements (APD, CCDF)
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