Phase I positively established the feasibility of developing a low-cost general purpose Spectral Correlation Analyzer (SCA) intended for laboratory use. A system design objective was to have the SCA accept both analog and digital inputs, and provide both graphics and test output to a monitor or to an external storage device. Subsequent to the Midterm Program Review, additional scope that did not have an impact on the program schedule or budget was included to address increasing the SCA bandwidth, providing a modular system architecture, and ruggedizing and adding portability to the SCA System mechanical packaging, all of which are intended to address tactical applications of the SCA. The Phase I Program scope included the following tasks: system design specification, SCA hardware survey & analysis, SCA software development tools survey and analysis, top-level design of system software and host control program interface, system architecture design baseline, spectral correlation detector, feasibility, and Phase II development plan, all of which were successfully completed. The principal objective of Phase II is to finalize the design of, build, and test and SCA instrument with performance characteristics that are suitable for on-line analysis of signals in a laboratory environment. correlation detector,