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Trace/Detector
Notes The query returns a name that corresponds to the detector type as shown
below, and indicates the setting for Trace 1.
String ReturnedDefinition
NORM = Normal
AVER = Average / RMS
POS = Positive peak
SAMP = Sample
NEG = Negative peak
QPE = Quasi Peak
EAV = EMI Average
RAV = RMS Average
Dependencies When Tune & Listen is turned on, or Demod Audio is the selected Analog
Output:
• all active traces are forced to use the same detector.
• CISPR detectors (QPD, EMI Avg, RMS Avg) are unavailable
CISPR detectors are grayed out when you have manually selected FFT sweep.
Conversely, if any CISPR detector is selected on an active trace, the auto rules
for sweep type will never select FFT, and manual FFT selection is grayed out.
If the grayed out key is pressed, an advisory message is generated. If the
equivalent SCPI command is sent, this same message is generated as part of a
“–221, Settings conflict” warning.
Couplings The auto detector rules depend upon marker type, averaging state and type,
trace state writing mode, and trace active state.
If the Avg Type is in Auto, and any of the CISPR detectors is selected on any
active trace, the Voltage Averaging type is auto-selected.
Preset Preset returns all traces to “auto”, which will result in Normal (Rosenfell)
detection for all traces.
State Saved Saved in State
Initial S/W Revision Prior to A.02.00
Modified at S/W Revision A.02.00
Remote Command: [:SENSe]:DETector[:FUNCtion]
NORMal|AVERage|POSitive|SAMPle|NEGative|QPEak|EAVerage|
EPOSitive|MPOSitive|RMS
[:SENSe]:DETector[:FUNCtion]?
Example: DET AVER Sets detector to average for all traces
DET:FUNC? Returns trace 1’s detector setting