This guide is intended for use in teaching a course in electronic communications systems. Class activities during the course examine the processes of creating electronic signals and transmitting various coded messages to other locations. Methods of changing the form of electric current are emphasized, and the latest techniques in data processing are covered. The first two sections discuss the guide's development within the framework of North Carolina's efforts to improve technological literacy and the guide's place as part of an instructional system. A list of the course's major objectives and a course outline are provided next. The remainder of the guide consists of learning modules on the following topics: electronic communications systems, fundamentals of electronic media, message design in electronic communications, preparation for and actual production of electronic messages, transmission of telecommunications media, and information processing and computers. Each module includes information about the length of time needed to complete the module, an introduction to the instructional content to be covered in class, performance objectives, a day-by-day outline of student learning activities, and lists of suggested textbooks and references. (MN)