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Spectrum Analyzer
Abstract class to manage Spectrum Analyzer devices
Download the compressed archive: AbstractSpAnalyzer.tar.gz
Commands
| Device Commands for Operator Level | ||
| Command name | Argument In | Argument Out |
| Init | DEV_VOID | DEV_VOID |
| State | DEV_VOID | DEV_STATE |
| Status | DEV_VOID | CONST_DEV_STRING |
| Reset | DEV_VOID | DEV_VOID |
| ClearStatus | DEV_VOID | DEV_VOID |
| Remote | DEV_VOID | DEV_VOID |
| Local | DEV_VOID | DEV_VOID |
| GetPeak | DEV_VOID | DEV_VOID |
| SetSingleSweep | DEV_VOID | DEV_VOID |
| ChangePowUnits | DEV_STRING | DEV_VOID |
| GetErrorInfo | DEV_VOID | DEV_STRING |
| GetMin | DEV_VOID | DEV_VOID |
| SetContinuousSweep | DEV_VOID | DEV_VOID |
| RestartMeasurement | DEV_VOID | DEV_VOID |
| SetAutoAttenuation | DEV_BOOLEAN | DEV_VOID |
| GetAutoAttenuation | DEV_VOID | DEV_BOOLEAN |
| SetAsciiData | DEV_VOID | DEV_VOID |
| SetINT32Data | DEV_VOID | DEV_VOID |
| SetReal32Data | DEV_VOID | DEV_VOID |
| GetDataFormat | DEV_VOID | DEV_STRING |
| SaveData | DEV_STRING | DEV_VOID |
| PrintData | DEV_STRING | CONST_DEV_STRING |
More info on commands...
Attributes
| 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 ( Operation completed command. Sets bit 0 in the standard event status register to ) |
DEV_SHORT | READ_WRITE | No |
| ResolutionBandwidth ( See specific instrument documentation. 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. See specific instrument documentation and manual for details. ) |
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. See specific instrument documentation and manual for details. ) |
DEV_DOUBLE | READ_WRITE | No |
| Fs ( Sets/reads synchrotron frequency. This is a synchrotron related functionality, it could be removed from abstract class if one was interested only in a Spectrum Analyzer device. ) |
DEV_DOUBLE | READ_WRITE | No |
| WindowFs ( Window around fs in which we look for peaks. This is a synchrotron related functionality, it could be removed from abstract class if one was interested only in a Spectrum Analyzer device. ) |
DEV_DOUBLE | READ_WRITE | No |
| Window | DEV_DOUBLE | READ_WRITE | No |
| NumberOfSweeps ( Sets the number of measures. 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 |
| 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. ) |
DEV_DOUBLE | 401 | No |
| TraceInt32 ( Y values corresponding to the 401 points in X axis of the spectrum analyzer ) |
DEV_LONG | 401 | No |
| GetSignalPeaks ( Retrieves the signal peaks. ) |
DEV_DOUBLE | 100 | No |
States
| States | |
| Names | Descriptions |
| ON | Device is online |
| OFF | Device is offline |
| FAULT | Device not working |
| DISABLE | accepts commands only from frontal panel. Remote control disabled. |
| UNKNOWN | Device is in unknown state when GPIB is not responding |
Device Classes
The following device servers implement the Spectrum Analyzer interface:- HPE4402B - device server to control the Hewlett-Packard E4402B spectrum analyzer.
- RSFSEA20 - device server to control the Rhode&Schwarz FSEA20 spectrum analyzer
Contact
Please contact Giacomo Strangolino (giacomo.strangolino at elettra dot trieste dot it) for any suggestion or critique.
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