R&S FSMR, Руководство по эксплуатации

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MEAS - Analyzer R&S FSMR
1166.3363.12 4.16-30 E-2
MEAS SIGNAL STATISTIC submenu :
The SIGNAL STATISTIC softkey opens a submenu for measurement of signal statistics.
In the submenu measurement of amplitude probability density ( APD ) and complementary cumulative
distribution ( CCDF ) can be selected alternately. Only one of the signal statistic functions can be
switched on at a time.
In default mode all statistic functions are switched off.
With a statistic function switched on the R&S FSMR is set into zero span mode automatically.
The R&S FSMR measures the statistics of the signal applied to the RF input with the resolution
bandwidth set. In order not to influence the peak amplitudes the video bandwidth is automatically set to
10 times the resolution bandwidth. The sample detector is used for detecting the video voltage.
APD
ON OFF
The APD ON/OFF softkey switches on or off the amplitude probability
distribution function.
When the APD function is switched on, the CCDF function is switched off
automatically.
IEC/IEEE-bus command:
CALC:STAT:APD ON
CCDF
ON OFF
The CCDF ON/OFF softkey switches on or off the complementary cumulative
distribution function.
When the CCDF function is switched on, the APD function is switched off
automatically.
IEC/IEEE-bus command:
CALC:STAT:CCDF ON
PERCENT
MARKER
If the CCDF function is active, the PERCENT MARKER softkey allows to
position marker 1 by entering a probability value. Thus, the power which is
exceeded with a given probability can be determined very easily.
If marker 1 is in the switched-off state, it will be switched on automatically.
IEC/IEEE-bus command:
CALC:MARK:Y:PERC 0...100%