The standard is a European technical specification focused on Anechoic Chambers , specifically regarding the measurement of shielding effectiveness .
Sells the I.S. EN 50147-1 identical equivalent. EVS-EN 50147-1:2002 - EVS standard evs.ee | en
The standard outlines specific steps for validating a chamber's performance, typically focusing on a frequency range from (though often tailored to specific needs). The testing involves:
The provides detailed diagrams and specifications for:
A common failure is discovering that a waveguide vent below its cutoff frequency provides only 60 dB instead of 90 dB due to poor installation.
To perform a test compliant with EN 50147-1, specific hardware is necessary to maintain accuracy across the wide frequency spectrum. : Must cover the 9 kHz to 40 GHz range.
: To ensure the measurement reflects the shield, not the wire. 🛡️ Key Takeaway