The ARRL Handbook for Radio Communications

n 1926, ARRL introduced the first edition of The Radio Amateur s Handbook, written by F. E. Handy. Since then, each edition has been recognized as a benchmark for radio communications learning and applied knowledge. This 97th edition of The ARRL Handbook is your complete guide to radio experimentation, discovery, and innovation. It is the Handbook -- written by radio amateurs for everyone with a desire to advance the pursuit of wireless technology. Key Topics Radio electronics theory and principles Circuit design and equipment Radio signal transmission and propagation Digital and analog modulation and protocols Antennas and transmission lines Construction practices Who reads The Handbook? Amateur Radio operators, or hams; professional wireless communication engineers and system designers; electrical engineers; students and instructors of engineering, physics, and geoscience. Always Updated! New Projects and Content System Fusion update by Cory Sickles, WA3UVV Solar Cycle 24 update by Carl Luetzelschwab, K9LA Rotator ratings and application by Don Daso, K4ZA, and Ward Silver, NØAX Generator RFI choke by James Brown, K9YC, and Glen Brown, W6GJB Annual transceiver survey by Joel Hallas, W1ZR Plus, new supplemental content Switchmode HV supply by Ralph Crumrine, NØKC Universal MMIC preamp by Paul Wade, W1GHZ Tunable RF preamp by George Steber, WB9LVI 2304 MHz amp by William Koch, W2RMA, and John Brooks, N9ZL Overshoot protection by Phil Salas, AD5X Receiver measurements by Robert Sherwood, NCØB Antenna analyzer tricks by Paul Wade, W1GHZ Audio splitter by Glenn Loake, GØGBI 10 W audio amp by Helmut Berka, DL2MAJ Bistable transfer relay by DJ7XO Updated design software from Tonnesoft by James Tonne, W4ENE