Librería Samer Atenea
Kálamo Books
Librería Elías (Asturias)
Librería Kolima (Madrid)
Librería Proteo (Málaga)
RadioBook Volume 2 explains how radio works from first principles, connecting waves, frequency, wavelength, modulation, circuits, antennas, feed lines, propagation, and the electromagnetic spectrum. Written for new and returning amateur-radio operators, it uses plain language and practical examples to build the technical foundation needed for licensing, station setup, troubleshooting, and confident on-air operation.