The Spectrum Application (RF Measurements)
R&S
®
FPL1000
218
User Manual 1178.3370.02 ─ 09
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
FPL1000, the number of samples to be
measured is defined instead of the sweep time. Since only statistically independent
samples contribute to statistics, the sweep or measurement time is calculated automat-
ically and displayed in the channel bar ("Meas Time"). The samples are statistically
independent if the time difference is at least 1/RBW. The measurement time is, there-
fore, expressed as follows:
Meas Time = N
Samples
/RBW
For the R&S
FPL1000, the maximum number of samples is approximately 20 million.
Remote command:
CALCulate<n>:STATistics:NSAMples
Gated Trigger
Activates and deactivates gating for statistics functions for the ACP and the CCDF
measurements. The gate ranges are defined using the
Remote command:
[SENSe:]SWEep:EGATe:TRACe<t>[:STATe<gr>]
Edit Gate Ranges
Opens a dialog box to configure up to 3 gate ranges for each trace. For details see
"Gate Range Definition for APD and CCDF"
Adjust Settings
Adjusts the level settings according to the measured difference between peak and min-
imum power for APD measurement or peak and mean power for CCDF measurement
in order to obtain maximum power resolution. Adjusts the reference level to the current
input signal.
Remote command:
CALCulate<n>:STATistics:SCALe:AUTO ONCE
Gate Range Definition for APD and CCDF
Access
: "Overview" > "Select Measurement" > "APD"/"CCDF" > "APD Config"/ "CCDF
Config" > "Edit Gate Ranges"
You can configure gate ranges for gated triggering in statistical measurements.
For background information on defining gate ranges see
CCDF Basics - Gated Triggering"
The remote commands required to perform these tasks are described in
ter 11.6.9.3, "Using Gate Ranges for Statistical Measurements"
Measurements and Results