The dictionary contains about 10,000 terms. Are terms of the areas of science and technology, mainly dedicated transmission problems and tasks, receiving, receiving and converting the information based on the use of electromagnetic and acoustic waves. Gives information about the devices that are used in radar, navigation, radio, television, radiometeorology, optics, electrical engineering, electronics, optoelectronics, acoustoelectronics, sonar, communications and other industries as the national economy, and military applications. Provides selected information on terminology related branches of knowledge, including those associated with the Electrical and Computer Engineering. Are examples of radio, electronic, electro-optical, acoustic (sonar) devices, stations, systems and systems for various applications, developed in our country, and abroad. The dictionary is intended for a wide range of professionals and students, including those interested in the history of technology. It may be of interest to scientists, military personnel, equipment developers, editors, teachers, graduate students, students.