Rohde & Schwarz EMI Test ReceiverESCI - Page 304

MEAS - Analyzer R&S ESCI
1166.6004.12 4.172 E-1
MEAS SIGNAL STATISTIC submenu :
SIGNAL
STATISTIC
DEFAULT
SETTINGS
APD
ON OFF
CCPDF
ON OFF
CCDF
ON OFF
RANGE
X-AXIS
X-AXIS
REF LEVEL
CONT
MEAS
RES BW
Y-AXIS
MIN VALUE
SELECT
MARKER
NO OF
SAMPLES
Y-AXIS
MAX VALUE
SINGLE
MEAS
SCALING
ADJUST
SETTINGS
ADJUST
SETTINGS
PERCENT
MARKER
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
ESCI is set into zero span mode
automatically.
The R&S ESCI 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%