Detectors (Measure) - Keysight x-series User Reference Manual

8 Frequency Scan Measurement
Meas Setup
Dependencies
Preset
State Saved
Range
Initial S/W Revision
Remote Command
Example
Notes
Dependencies
Initial S/W Revision

Detectors (Measure)

This key opens a menu that allows you to configure the detectors to be used for the Final Measurement
and Measure at Marker reading. The same menu can be accessed from the Detectors key under the
Marker Function menu. Any of the instrument's detectors can be used for each of the three detectors, or
any of the three can be turned off. The dwell time for each detector is also settable.
When performing a Final Measurement or Measure at Marker, the dwell time settings that you select will
depend on the characteristics of the emission you are measuring. The default dwell time (200 ms) should
work well for typical EUT emissions, but sometimes you will encounter emissions for which the defaults are
not optimal. This is especially the case for emissions that vary slowly over time or have a slow repetition
rate. By lengthening the dwell times you can increase the likelihood of accurately measuring these low
repetition rate signals.
When a Final Measurement or Measure at Marker is activated, the receiver makes a zero span
measurement for each of the (up to) three detectors selected, using the Dwell Time set for each detector.
If the signal's repetition period is greater than 200 ms (the default setting), the dwell time should be
increased to capture at least two and preferably more repetitions of the signal. Additionally, if you do not
need or do not wish to use a detector to make a measurement, that specific detector may be turned off.
Key Path
Initial S/W Revision
476
This key is grayed out when a scan sequence is running. 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.
CURRent
Saved in instrument state.
Curr Signal|All Signals|Marked Signals
A.07.00
:CONFigure:EMI:SLISt CURRent|MARKed|ALL
CONF:EMI:SLIS MARK Perform remeasure on all marked signal.
CURRent aliases to :FSC:SEQ:REM CURR; :FSC:SEQ REMMARKed aliases to :FSC:SEQ:REM MARK;
:FSC:SEQ REMALL aliases to :FSC:SEQ:REM ALL; :FSC:SEQ REM
This key is grayed out when a scan sequence is running. 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.
A.07.00
Meas Setup
A.07.00
EMI Receiver Mode Reference