The textbook provides general information about RTV radars, their characteristics and construction principles| considered ways to view the space and measure the coordinates of targets | the main technical characteristics and methods for constructing RTV radar transmitters are given. Particular attention is paid to the analysis of the influence and type of the probing signal on the protection of the radar from active and passive interference, the resolution and accuracy of measuring coordinates. Structural diagrams of the path for receiving and separating signals, methods for receiving and processing various types of radar signals against the background of interference are given | methods and devices for protecting RTV radar from active and passive interference, features of their technical implementation | the principles of constructing devices for displaying radar information and the operation of devices for generating scans of indicators and scale marks are outlined. The textbook is intended for students of military departments and cadets of military training centers of the Air Force, studying in the military registration specialty "Operation and repair of air defense radar systems of the Air Force", and can also be used by students of universities of the enlarged group of training specialties 210000 " Electronic Engineering, Radio Engineering and Communications” (spec. 210304.65 “Radioelectronic Systems”) and all those interested in the construction, development and current state of the RTV radar.