Operating Manual EMI TEST RECEIVER ESIB7 - Rohde & Schwarz

Search Functions - Analyzer
ESIB
SHAPE FACT
60/3 DB
SHAPE FACT
60/6 DB
The SHAPE FACT 60/3dB.and SHAPE FACT 60/6dB softkeys activate the
automatic measurement of the form factor for the displayed signals.
For this purpose, four temporary markers are used. The markers T1 to T4
indicate, in increasing order, the 3 dB/6 dB positions below the reference
marker level.
In the level output field, the relationship between the two frequency
differences ∆f 60dB / ∆f 3dB and ∆f 60dB / ∆f 6dB are displayed
The display of the measurement value takes place in the marker field. When
the level differences cannot be determined, the measurement value is
marked as invalid. The update of the shape-factor display takes place at the
end of sweep.
The entry mode is switched to the reference marker if the delta marker entry
mode is to be active. The position of the reference marker can be changed in
the usual way (numeric input, step-keys, roll-key, peak search, etc.).
The SHAPE FACTOR function is turned off by pressing SHAPE FACTOR
softkey once again, or by enabling another marker.
The SHAPE FACTOR function is available only in the frequency domain.
IEC/IEEE-bus commands
:CALCulate:MARKer:FUNCtion:SFACtor
(60dB/3dB) | (60dB/6dB)
:CALCulate:MARKer:FUNCtion:SFACtor:STATe ON
:CALCulate:MARKer:FUNCtion:SFACtor:RESult?
:CALCulate:MARKer:FUNCtion:SFACtor:FREQ?
Summary Marker
The summary markers are available for measurements in the time domain (SPAN = 0).
Unlike the markers and delta markers, the summary markers are not used to mark the pixels of a trace.
They activate a measurement of the rms value (RMS) or of the average value (MEAN) of the whole
trace. The result is displayed in the marker info field.
The measured values are either updated after every sweep or averaged according to a defined number
of sweeps (AVERAGE ON/OFF and SWEEP COUNT). In case of maximum peak evaluation (PEAK
HOLD ON) the measured values are held until the occurrence of the next higher value.
Example:
Marker info field switched on with summary marker: MEAN, AVERAGE ON and PEAK HOLD ON
MEAN HOLD
MEAN AV
2.33 Watt
2.29 Watt
The evaluation range can be limited with the function SEARCH LIMITS ON and the time lines (TIME
LINE1,2), eg when measuring the average power of a sampled signal from the beginning to the end of a
burst.
With the summary marker switched on, the sampling detector is activated (TRACE-DETECTOR-AUTO).
MARKER SEARCH menu
SUM MKR
ON OFF
The SUM MKR softkey activates the summary marker
The measurement, rms or average value and the settings for maximum peak
evaluation and averaging is selected in the submenu SUMMARY MARKER.
The softkey is only available in the time domain.
IEC/IEEE-bus command
:CALCulate:MARKer:FUNCtion:SUMMary ON|OFF
1088.7531.12 4.208 E-15