This standard contains the German version of the European Standard EN 55016-1-1:2010+A1:2010+A1:2010 and is identical to the International Standard IEC/CISPR 16-1-1:2010 and its Amendment A1:2010. It specifies requirements for measuring apparatus for the measurement of radio-frequency conducted and radiated disturbances (disturbance voltages and currents and disturbance field strengths) in the frequency range 9 kHz to 18 GHz. Herefore, quasipeak, peak and rms average measuring receivers, spectrum analyzers, scanners, audio-frequency voltmeters and disturbance analyzers for discontinuous disturbances, and - newly incorporated - measuring receivers which operate on the basis of the fast Fourier Transformation in the time domain (FFT-based measuring instrument) - are specified. The basic characteristics of the measuring apparatus specified in this standard include input impedance, accuracies of measurement for sinusoidal voltages, selectivity, display behaviour for impulse-shaped signals, limitation of intermodulation distortions, receiver noise. The responsible Committee is Subcommittee UK 767.4 "Geräte und Verfahren zum Messen von elektromagnetischen Aussendungen" ("Equipment and methods for measurement of electromagnetic transmissions") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.