by George Heron N2APB
The price, performance and availability of digital signal processing chips provides amateur radio homebrewers with some interesting opportunities in our project designs. There have been a number of DSP-related construction projects and kits throughout the last 3-4 years, but each tends to use a different processor -- hence each has a different programming language, development environment, debugging techniques, performance profiles, etc. ... all of which make it difficult for ham usage in multiple projects. This section describes a design of a low-cost and flexible DSP "component" based on the Motorola 56002 processor for application in audio filtering, audio phase shifting, modem pumps (e.g., RTTY), and other such projects.
(Note: The material for this page is not yet ready for presentation ... please check back later.)