The requirements for V-LISNs (also sometimes called AMN, artificial mains network) published in the standard CISPR 16-1-2 has been updated recently. Previously there were only requirements for the magnitude of impedance at the EuTtrerminals, no precise method to measure the Voltage Division Factor was given. The recent edition of CISPR 16-1-2 requires the EuT-impedance in magnitude and phase.