Rohde & Schwarz FSVA - Page 739

Remote Control
R&S
®
FSVA/FSV
739Operating Manual 1176.7510.02 ─ 09
CALCulate<n>:STATistics:RESult<Trace> <ResultType>
This command reads out the results of statistical measurements of a recorded trace.
Suffix:
<n>
.
irrelevant
<Trace> 1...6
trace
Parameters:
<ResultType> MEAN | PEAK | CFACtor | ALL
MEAN
Average (=RMS) power in dBm measured during the measure-
ment time.
PEAK
Peak power in dBm measured during the measurement time.
CFACtor
Determined CREST factor (= ratio of peak power to average
power) in dB.
ALL
Results of all three measurements mentioned before, separated
by commas: <mean power>,<peak power>,<crest factor>
The required result is selected via the following parameters:
Example:
CALC:STAT:RES2? ALL
Reads out the three measurement results of trace 2. Example of
answer string: 5.56,19.25,13.69 i.e. mean power: 5.56 dBm,
peak power 19.25 dBm, CREST factor 13.69 dB
CALCulate<n>:STATistics:SCALe:AUTO ONCE
This command optimizes the level setting of the instrument depending on the mea-
sured peak power, in order to obtain maximum instrument sensitivity.
To obtain maximum resolution, the level range is set as a function of the measured
spacing between peak power and the minimum power for the APD measurement and
of the spacing between peak power and mean power for the CCDF measurement. In
addition, the probability scale for the number of test points is adapted.
Subsequent commands have to be synchronized with *WAI, *OPC or *OPC? to the
end of the auto range process which would otherwise be aborted.
Suffix:
<n>
.
irrelevant
Example:
CALC:STAT:SCAL:AUTO ONCE;*WAI
Adapts the level setting for statistical measurements.
Manual operation: See "Adjust Settings" on page 394
Remote Control – Commands