This book conveys the reality of today's communication systems by balancing traditional elements with the three more recent, radical developments that have had the most dramatic effects on the field--the widespread use of integrated circuits, microprocessors and software, digital techniques and signals. It covers the latest tools, techniques, and standards to help prepare readers for systems of today and the next-generation. A five-part organization covers spectrum, noise, and modulation; media, transmission lines, and wave propagation; digital systems; communication systems and applications; and broadband systems. For people who need to understand how communications work, what they can do, how to fix them, and what they can provide.