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HPE4402BSpectrumAnalyzer
Device Attributes Description

SpectrumAnalyzerHPE4402B Class

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Scalar Attributes
Attribute name
Data Type
R/W Type
Expert
Span
( Span Frequency, in MHz )
DEV_DOUBLE
READ_WRITE
No
CenterFrequency
( Sets or retrieves the central frequency. This is listed in the base IVI Spec functions. )
DEV_DOUBLE
READ_WRITE
No
MarkerX
( Sets or retrieves the central frequency. This is listed in the base IVI Spec functions. )
DEV_DOUBLE
READ
No
MarkerY
( The point on the y-axis corresponding to the value of the marker IVI Spec compliance: IviSpecAnMarker Extension Group. )
DEV_DOUBLE
READ
No
ErrorPolling
( This function periodically polls the device and reads its status, signaling malfunctioning. )
DEV_STRING
READ
No
Attenuation
( Specifies the input attenuation (in positive dB). IVI Spec base attribute. )
DEV_DOUBLE
READ_WRITE
No
DetectorType
( Specifies the detection method used to capture and process the signal. IVI SpecAn base attribute. )
DEV_STRING
READ_WRITE
No
StartFrequency
( Sets the start frequency. IVI SpecAn base functions. )
DEV_DOUBLE
READ_WRITE
No
StopFrequency
( Sets the stop frequency. IVI SpecAn base functions. )
DEV_DOUBLE
READ_WRITE
No
FreqOffset
( Specifies the frequency offset for all frequency readouts such as center frequency, except that it does not affect marker count. IVI SpecAn base functions. )
DEV_DOUBLE
READ_WRITE
No
ReferenceLevel
( Sets the amplitude of the reference level for the y axis. This is used as reference for amplitude measurements. This is typically set to a value slightly higher than the highest expected signal level. The units are determined by the amplitude units attribute. IVI SpecAn base attributes. )
DEV_DOUBLE
READ_WRITE
No
OPC
( The query stops any new commands from being processed until the current process is complete. IEEE common commands. )
DEV_SHORT
READ_WRITE
No
ResolutionBandwidth
( Sets the resolution bandwidth from 1kHz to 5MHz. IVI SpecAn base attribute. )
DEV_DOUBLE
READ_WRITE
No
PeakThreshold
( Specifies the minimum signal level for thee analyzer's internal peak identification routine to recognize a signal as a peak. This applies to all traces and all windows. Manual 5-22 )
DEV_DOUBLE
READ_WRITE
No
PeakExcursion
( Specifies the minimum signal excursion above the threshold for the internal peak identification routine to recognize a signal as a peak . The excursion is the delta power between the noise level and the signal peak. Manual: 5-21. )
DEV_DOUBLE
READ_WRITE
No
Fs
( Sets/reads synchrotron frequency. )
DEV_DOUBLE
READ_WRITE
No
WindowFs
( Window around fs in which we look for peaks. )
DEV_DOUBLE
READ_WRITE
No
Window
DEV_DOUBLE
READ_WRITE
No
NumBunches
( Sets or reads the number of bunches. Its default value is read from the corresponding class property. )
DEV_LONG
READ_WRITE
No
NumberOfSweeps
( Sets and reads the number of sweeps. See the related class property for details. This instrument supports only single and continuous sweep. IVI SpecAn base attribute. )
DEV_LONG
READ_WRITE
No
FundamentalFrequency
( Synchrotron fundamental frequency. This is also a class property. )
DEV_DOUBLE
READ_WRITE
No





Spectrum Attributes
Attribute name
Data Type
X Data Length
Expert
StartStop
( Sets the start and stop frequencies. Center frequency will be in the middle. )
DEV_DOUBLE
2
No
TraceReal32
( Vector containing the Y values corresponding to the 401 points of the spectrum. IVI SpecAn base function. )
DEV_DOUBLE
401
No
TraceInt32
( Y values corresponding to the 401 points in X axis of the spectrum analyzer. IVI SpecAn base function. )
DEV_LONG
401
No
GetSignalPeaks
( Retrieves the signal peaks. )
DEV_DOUBLE
100
No






ELETTRA - Control Group