En 50147-1 Pdf <EASY>

EN 50147-1:1996 (still the current active version) specifies a procedure for measuring the shielding attenuation of an anechoic chamber—typically a fully or semi-anechoic chamber used for EMC testing. The frequency range covered is generally from 10 kHz to 18 GHz, although practical applications often extend to 40 GHz with appropriate equipment.

Measurements are mandated at frequencies including 100 MHz, 400 MHz, 1 GHz, 10 GHz, and 40 GHz. Essential Test Equipment en 50147-1 pdf