Covers both traditional aspects of communications and recent developments including integrated circuits, microprocessors and software, and digital techniques and signals. Takes a circuitry plus systems viewpoint, discussing circuits and their resultant systems or equipment with equal emphasis. Over half the material is devoted to digital communication and communication systems. Contains chapter objectives, summaries, questions, worked examples, and problems with selected answers, plus two-color diagrams. This third edition reflects the continuing evolution of the field. Annotation c. by Book News, Inc., Portland, Or.