PC-SIGNAL® is a dynamic signal analysis software package for vibration analysis/diagnostics of rotating machinery.  It is a commercial software product that comprises a number of algorithms and procedures that were developed for NASA SBIR Phase II and Phase III programs.  These advanced signature analysis techniques were developed for rocket engine/machinery fault detection and diagnosis. PC-SIGNAL was created to transfer NASA-developed technology to the industry.  The software package is designed to be highly user-friendly and makes dynamic data analysis with either a large volume of data or extensive data analysis requirements a simple task.  The analysis capabilities of PC-SIGNAL include a wide range of signal waveform and spectral analysis techniques. These include new processing capabilities for signal detection, signal enhancement, and source identification. Developed for use under the MS Windows environment, PC-SIGNAL provides powerful visualization for studying the signal properties in two-dimensional or three-dimensional displays in the time domain, frequency domain, or joint time-frequency domain. For a large and repeated data processing requirement, PC-SIGNAL can automate the task with an easy-to-use Database module.  PC-SIGNAL provides various output formats for report and presentation (ASCII, Excel file, PPT file, or electronic copy).  These capabilities do not require any programming experience; with a few simple clicks and checks, users can start analyzing data on a PC.  PC-SIGNAL provides a cost-effective solution for many engineering applications.  All that is required is your PC computer plus PC-SIGNAL.