Part of Delmar Learning's new National Center for Telecommunications Technologies Series, this book introduces wireline, wireless, and fiber optic concepts, focusing on physical layer implementation of system hardware. Industry regulations and background on filters, and test equipment is provided. Readers then launch into study of multiplexing and modulation schemes, with opportunities to compare digital and traditional techniques. Presentation is guided by the needs of technicians tasked with evaluating system operation and reconfiguring programmable hardware. DC/AC theory and digital electronics knowledge is assumed.