To successfully troubleshoot and do repairs, electronics engineers and technicians must understand the principles, math, and equations behind the systems and devices they're working on. This on-the-job resource explains those arcane topics more clearly than any other guide, its predecessor, The Benchtop Electronics Reference Manual, 3/e, was acclaimed by Popular Communications as the most comprehensive and well-rounded reference you're likely to find. . .for the experienced electronics tech or savvy hobbyists.'' Now this classic is thoroughly updated to cover satellite communications, fiber optics, and other key topics. Contains helpful practice problems and worked-out solutions.