Frequency analyzer with 8 parallel channels. The signals are loaded from files. The build in signal generator offers an easy and quick way to learn about the properties of FFT and to gain the fundamental insight in to digital signal processing and analysis. The application also offers extensive capabilities for quick analysis of real world signals. This includes advanced auto-scaling features, serial printing, FIR filters and extensive formatting capabilities. Especially useful for applications in pattern recognition and everywhere where huge amounts of data need to be quickly analyzed with report generation. 

* Version: 2.5
* Windows 95/98/NT
* 3000 KB disk space.
* To install unzip and run setup.
* This is shareware.(on-line registration support)
* distribution is free
* Author's Email: janez.makovsek@usa.net.
* Technical support: Registered users will receive one week of technical support for free.
* Home page: www.teemach.com/FFTProp

New version (2.5) features:

1. Multichanneling. (8 parallel channels.)
2. FIR filter with Designer and speed profiler.
3. Multi-series charts with legend. 
4. A new product support: The basic Delphi signal processing package. The package mirrors the main features of FFT Properties with three Delphi components.

FFT Properties 2.0 features

1. Two displays: Time signal, Frequency Spectrum.
2. Power Spectrum
3. RMS Spectrum
4. Phase Spectrum
5. Three input signals support.
6. Separate adjustment of DC, Phase, Frequency and Amplitude.
7. Real time emulation. (Smooth animation)
8. Log/Lin Scale.
9. Static/Dynamic Scale.
10. Single/dual screen display.
11. Import of signals from files.
12  Export of signals to files.
13. Export of charts to: BMP, WMF,  JPG, to clipboard and Files.
14. Zoom and panning.
15. Logarithmic amplitude and frequency.
16. Put picture behind the chart.
17. Background of chart can have gradient.
18. 3D free space Waterfall.
19. Three ways of scaling.
20. Averaging: linear and exponential infinite.
21. Separate configuration of charts for screen and paper.
22. Serial printing and page layout. Put 1,2,3,4 charts on signal page.
23. Tutorial on basics of frequency spectrum interpretation.
24. Configurable sample time and samples number (Sampling frequency)
25. Marking of peaks.
26. Completely serialized and automatic signal processing and printing.
27. Chart templates. 


Signal generator:

* Sinus
* Impulse
* Triangle
* Square
* Transient
* Multiplication
* Delta function
* Gaussian noise
* Random noise

FFT Windows

* Rectangular
* Hamming
* Hanning
* Blackman
* Exponent Down.

The following phenomena can be observed in combination with the build in signal generator:

* FFT and signal type.
* FFT and Window type. 
* Amplitude accuracy at different Windows.
* Frequency accuracy at different Windows.
* Power and RMS Amplitude towards normal.
* Phase spectrum and Windows.
* Beating of Amplitude in real time.
* The effect of DC and relation of DC towards signal average.
* FFT aliasing.
* Time signal aliasing. (Sampling)
* The effect of convolution: time signal and rectangular window. 
* The effect of non-integer number of periods per Window. (In amplitude and Phase)
* Higher harmonics and aliasing.
* Sum and difference frequencies.

