Amazon.com reviews: 'Great for the RF technician. This is a great book on wireless technology for persons starting out in RF electronics, as well as for RF technicians and ham radio operators. Carr's book explains RF capacitors, coils, transistors, receivers, propagation, antennas, mixers, amplifiers, impedance matching, filters, the Smith Chart, etc., in an easy-to-understand way' - Cotter W. Sayre, author of "The Complete RF Technician's Handbook". 'Excellent introduction to radio technology. It does an excellent job of introducing and explaining the concepts of radio frequency technology.' Build the circuits that make wireless work. If you like hands-on electronics, you'll love Joe Carr's "Secrets of RF Circuit Design". This book takes you inside wireless technology with step-by-step, illustrated directions for dozens of usable projects. Popular Electronics writer Joe Carr demonstrates RF theory as he shows you how to overcome the technical and materials challenges facing those who build real-world electronics. It is perfect for technicians, radio hobbyists, and anyone who wants to put RF theory into practice. It is ideal for learning radio frequency circuitry.It includes: design and build receiver circuits, RF bridges, amplifiers, receiver preselectors, simple spectrum analyzers, and time domain reflectometers; 7 new chapters on demodulators, circuit vectors, measuring L-C circuits, and filtering circuits against EMI; new - directional and hybrid couplers; detailed coverage of simple RF instruments, as well as UHF and microwave components; parts lists and components sources; and, complete troubleshooting guidance, too! It also contains update of the favorite RF circuit guide of thousands of electronics enthusiasts!