http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Introduction to electronic communications. Amplitude modulation and single-sideband modulation. Amplitude modulation circuits. Frequency modulation. Frequency modulation circuits. Radio transmitters. Communications receivers. Multiplexing. Antennas, transmission lines, and radio wave propagation...