The ARRL Handbook is the greatest applied electronics and communications reference of all time (first published in 1926)! The content of this 85th edition reflects the latest aspects of today?s Amateur Radio: fundamental electronics concepts, components and building blocks, analog and digital radio design, troubleshooting techniques, antennas and much more. Comb through its pages, and you will quickly see why generations of radio amateurs, engineers and technicians have relied on its thorough coverage of theory, references and practical projects.