CISPR 16-1-6:2014 provides procedures and supporting information for the calibration of antennas for determining antenna factors (AF) that are applicable to antennas intended for use in radiated disturbance measurements. It has the status of a basic EMC Standard in accordance with IEC Guide 107, Electromagnetic compatibility. The AF of an antenna is influenced by nearby surroundings and by its position in space relative to the radiating source. This standard focuses on antenna calibrations that provide the AF in a free-space environment in the direction of the boresight of the antenna. The frequency range addressed is 9 kHz to 18 GHz. The relevant antenna types covered in this standard are monopole, loop, dipole, biconical, log-periodic dipole-array (LPDA), hybrid and horn antennas. Guidance is also provided on measurement uncertainties associated with each calibration method and configuration, and the test instrumentation used.