Annex
NRP2
398User Manual 1173.9140.02 ─ 07
TRIG:SLOP POS 'trigger to rising signal edge
SENS:FUNC "XPOW:CCDF" 'set CCDF statistics function
SENS:STAT:OFFS 300 US 'measurement starts 300 µs after trigger time
SENS:STAT:TIME 500 US 'measurement duration 500 µs
SENS:STAT:SCAL:X:POIN 1024 'number of measurement points on the power axis
SENS:STAT:SCAL:X:RLEV -40 'lowest considered power in dBm
SENS:STAT:SCAL:X:RANG 50 'measurement range on the power axis in dB
SENS:STAT:SAMP 1E9 'number of desired samples to be included
'in the statistics
INIT 'start measurement
FETCh? 'query array with the statistics data
SENS:STAT:AVER? 'average power values that were included
'in the statistics
A.4.5.2 Selective measurement of individual statistics values
As in manual operation, marker measurements can also be performed by remote con-
trol. For this purpose, a remote-control command is used to set a value on the density/
distribution axis or the power axis. Using another command, you can then read off the
sought matching value.
Example:
The measurement is performed over a GSM frame (4.615 ms). First the CCDF of a
GSM signal at −15 dBm is to be calculated. Subsequently the power value at which the
CCDF is still 50% is of interest.
*RST
TRIG:SOUR INT 'trigger to a signal edge
TRIG:SLOP POS 'trigger to rising signal edge
SENS:FUNC "XPOW:CCDF" 'set CCDF statistics function
SENS:STAT:OFFS 0 'measurement starts at trigger time
SENS:STAT:TIME 4.615 MS 'measurement duration 4.615 ms
SENS:STAT:SCAL:X:POIN 1024
'number of measurement points on the power axis
SENS:STAT:SCAL:X:RLEV -30 'lowest considered power in dBm
SENS:STAT:SCAL:X:RANG 30 'measurement range on the power axis in dB
SENS:STAT:SAMP 1E9 'number of samples to be included
'in the statistics
READ?
CALC:STAT:MARK:HOR:POS:X -15 'position marker on the power axis at −15 dBm
CALC:STAT:MARK:HOR:DATA? 'query the DF value at −15 dBm
CALC:STAT:MARK:VERT:POS:X 0.5 'vertical marker at 50%
CALC:STAT:MARK:VERT:DATA? 'query the "50% power" in dBm
A.4.6 Pulse Analysis Measurements
Pulse analysis measurements are always coupled to trace measurements. Thus, a
trace measurement has to be set up and the pulse analysis algorithms have to be acti-
vated. before the measurement is started. The sensors send the trace data together
with the pulse measurement results.
Programming Measurements
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