Stanford SR780
Spectrum Analyzer FFT (Distributed only in Germany.)
Features
- 102.4 kHz frequency range on both channels
- 90 dB dynamic range (FFT mode)
- 145 dB dynamic range (swept sine mode)
- 102.4 kHz real-time bandwidth
- Display two different frequency spans
- Real-time ANSI standard octave analysis (1/1, 1/3, and 1/12 octave)
- Low distortion sine source (-90 dBc) plus two-tone, chirp, noise, burst and arbitrary
- 2 Msample memory (8 Msample optional) for
- time capture, waterfall plots and arbitrary source
- Postscript, PCX, GIF and HP-GL output
Features
- DC to 102.4 kHz Bandwidth
- 90 dB dynamic range
- 16-bit A/D conversion
- Low distortion synthesized source
- ANSI standard octave measurements
- 145 dB dynamic range swept sine mode
- Order tracking
- 20 pole/zero curve fitting
- Time/histogram mode
- 8 Msamples transient capture memory
- File output to SDF, MAT, UFF, and ASCII
- Graphics output to GIF, EPS, PCX, HPGL
- 3.5 inch MS-DOS compatible disk drive
- GPIB and RS-232 interfaces included
- Windows data viewer program included
| Features | |
| Instrument modes | FFT, Time/Histogram, Correlation, Octave, Swept-Sine Order Tracking |
| Frequency domain measurements | Frequency Response, Linear Spectrum, Cross Spectrum, Power Spectrum, Coherence, Power Spectral Density |
| Time domain measurements | Time Record, Cross Correlation, Auto Correlation, Orbit |
| Amplitude domain measurements | Histogram, PDF, CDF |
| FFT resolution | 100, 200, 400, 800 lines |
| Views | Linear Magnitude, Log Magnitude, dB Magnitude, Magnitude Squared, Real Part, Imaginary Part, Phase, Unwrapped Phase, Nichols, Nyquist, Polar |
| Units | V, V2, V2/Hz, meters/sec, meters/sec2, inches, inches/sec, inches/sec2, mils, g, kg, lbs., N, dynes, pascals, bars, SPL, user-define engineering units (EUs) |
| Displays | Single, Dual, Front/Back overlay, Waterfall with Skew, Zoom and Pan, Grid On/Off |
| Marker functions | Trace Marker, Dual Trace Linked Marker, Absolute and Relative Marker, Peak Find, Harmonic Marker, Band and Sideband Marker, Waterfall Marker, Frequency-Damping Marker |
| Averaging | RMS, Vector, Peak Hold, Linear, Exponential, Equal Confidence (Octave), Preview Time Record, % Overlap Averaging, Overload Reject |
| Triggering | Continuous, Internal, External (Analog or TTL), Source, Auto/Manual Arming, GPIB, RPM Step, Time Step, Pre/Post Trigger Delay |
| Source outputs | Sine, Two-Tone, Swept-Sine, White-Pink Noise, Burst Noise, Chirp, Burst Chirp, and |
| Windows | Hanning, Blackman-Harris, Flat Top, Kaiser, Force/Exponential, User-Defined, +/-T/2, +/-T/4, T/2, Uniform |
| User math | +, -, *, /, Conjugate, Magnitude/Phase, Real.Imaginary, Sqrt, FFT, Inverse FFT, jw, Log, Exp, d/dx, Group Delay, A, B, C Weighting, x/x-1, Trace 1-5, Vector Average, RMS Average, Peak Hold |
| Analysis | Harmonic, Band, Sideband, THD, THD + N, Limit Test with Pass/Fail, Data Table, Exceedance, Statistics, Curve Fit and Synthesis |
| Time capture | Capture Time Data for later analysis (FFT or Octave). Up to 2 Msamples (8 Msamples optional) of data can be saved. |
| Storage | 3.5", 1.44 Mbyte, DOS formatted disk. Save data, stups and hard copy data. |
| Hard copy and interfaces | Print to Dot Matrix or PCL (LaserJet and DeskJet) printers. Plot to HP-GL or Postscript plotters. Print/Plot online (RS-232 serial, Centronics parallel or IEEE-488) or to disk file. EPS, GIF, PCX graphic formats also available for disk storage. |
| Data conversion utility | Data, waterfall and capture files can be converted to ASCII. Data files can also be converted to Universal File Format, SDF format or MATLAB MAT-File Format. SDF and SR780 files can be converted to SR785 format. |
| DataViewer | Windows 95 based graphics program for viewing SR785 files. Graphs can be pasted to the clipboard or saved in PCX, BMP or GIF formats. |
