EN 50147-1 applies to all types of shielded enclosures, from small equipment rooms to large anechoic chambers. Its core technical specifications include:
Specialized sets (loops, dipoles, biconical, and horn) calibrated for their respective frequency bands. Importance for EMC Compliance
Loop antennas are placed parallel to the wall, directly opposite each other. en 50147-1 pdf
Before formal validation, leakage tests are performed around critical "weak points" like door frames, air ducts, filters, and joints. Acceptance measurements are typically conducted before the installation of internal RF absorbers to ensure the base metallic structure is sound.
Tunable or broadband dipoles and monopoles for electric fields; horn antennas for microwave plane waves. EN 50147-1 applies to all types of shielded
Covers a broad spectrum from 9 kHz to 40 GHz .
Measurements are mandated at frequencies including 100 MHz, 400 MHz, 1 GHz, 10 GHz, and 40 GHz. Essential Test Equipment Before formal validation, leakage tests are performed around
To establish a common measurement procedure to validate shielding effectiveness (SE) —the ratio of the electromagnetic field strength outside the shield versus inside.
High-sensitivity spectrum analyzers or EMI receivers .