R&S ESU Series, Operating Manual

Page: 606 / 855

Operating Manual 1302.6163.12 - 03 6.167
R&S ESU Remote Control – Description of Commands
SENSe Subsystem
6.16.5 SENSe:DETector Subsystem
The SENSe:DETector subsystem controls the acquisition of measurement data via the selection of the
detector for the corresponding trace. The measurement windows are selected by SENSe1 (screen A)
and SENSe2 (screen B).
[SENSe<1|2>:]DETector<1..3>[:FUNCtion] APEak | NEGative | POSitive | SAMPle | RMS | AVERage
| QPEak | CAVerage | CRMS
This command sets the detector for recording measured values for the selected trace in the specified
measurement window.
• The APEak detector (AutoPeak) displays the positive and also the negative peak value of the noise
floor. If a signal is detected, only the positive peak value is displayed.
• The POSitive or NEGative detector only displays the positive or the negative peak value.
• With the Sample detector the value measured at the sampling time is displayed, whereas the RMS
value of the power measured at each measurement point is displayed with the RMS detector.
• The AVERage detector displays the power average value at each measurement point.
• The detectors QPEak for quasipeak, CAVerage for CISPR average and CRMS for CISPR-RMS
perform standard-compliant signal evaluations for the EMC test equipment.
If QPEak is selected, the video filter is automatically switched off. In addition, the couplings between
the span and RBW as well as between RBW and the sweep time are switched off. They are not
restored until another detector is selected. Accordingly, the sweep time should be set to a value that
is large enough so that the quasipeak detector can settle in completely at each measurement point.
The trace is indicated as a numerical suffix for
DETector
.
Example:
"DET POS"
'Sets the detector in screen A to "positive peak".
Characteristics: *RST value: APEak
SCPI: conform
Mode: A
[SENSe<1|2>:]DETector<1..3>[:FUNCtion]:AUTO ON | OFF
This command either couples the detector in the selected measurement window to the current trace
setting or turns coupling off. The trace is selected by the numeric suffix at DETector.
Example:
"DET:AUTO OFF"
Characteristics: *RST value: ON
SCPI: conform
Mode: A