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, V/√Hz, meters, meters/s, meters/s²,
inches, inches/s, inches/s², mils, g, kg, lbs., N, dynes, pascals, bars, SPL, user-defined 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, Percent 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 Arbitrary

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, jΩ, Log, Exp, d/dx, Group Delay, A-, B-, C-Weighting, x/x-1, Trace 1 to 4, 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
Captures 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, setups 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 on-line (RS-232 serial, Centronics parallel or IEEE-488.2) 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 based graphics program for viewing SR785 files. Graphs can be pasted to the clipboard or saved in PCX, BMP or GIF.