Требуемые уровни выходной мощности усилителей радиопередающих устройств превышают возможности современной элементной базы. Поэтому при создании радиопередающих устройств используются различные методы повышения выходной мощности, основанные на применении схем сложения мощностей, отдаваемых несколькими транзисторами, и реализации оптимальных условий работы активного элемента.

QST’s monthly “Product Review” column has long been the most-read section of the magazine. That’s not surprising, as most radio amateurs are interested in reading about the latest station equipment, and product review testing helps operators make informed decisions based on their needs and desired performance.
Amateur Radio Transceiver Performance Testing explains in detail the performance data tables from QST Product Reviews. It discusses how published laboratory data relates to actual performance, how each major test is performed, the significance of each test, and what the numbers mean. After reading this book, you’ll gain a better understanding of the extensive testing ARRL performs, learn the technical terms and parameters presented in Product Review, and develop the capability to reach your own conclusion about which HF transceiver is best for you.

The ARRL Handbook for Radio Communications is the standard for applied theory and practical information concerning the fundamentals of radio electronics, circuit design and equipment, radio signal transmission and propagation, antennas, construction practices, and much more. Each chapter is filled with the most up-to-date knowledge representative of the wide and ever-expanding range of interests among radio amateurs. There are practical, hands-on projects for all skill levels, from simple accessories and small power supplies, to legal-limit amplifiers and high-gain antennas.
This 94th edition of The ARRL Handbook is a cornerstone of radio experimentation, discovery, and achievement. First introduced in 1926 as The Radio Amateur's Handbook, today’s Handbook is a comprehensive technical reference used by radio amateurs, experimenters, students, and practicing engineers.

You’d be surprised at how many amateurs operate stations that are entirely indoors. By “entirely indoors,” I mean stations that exist completely within the confines of the homes in which the operators live. Some hams can install semi-invisible antennas outdoors by cleverly hiding wires along exterior walls, or by exploiting the classic ruse of using rain gutters as antennas, but this book is devoted to those who lack even that luxury. When I say “HF indoors,” I mean that everything is indoors – including the antenna system.