Electromagnetic Anechoic Chamber Testing refers to:
According to standards such as GB/T12190-2021, ANSI C63.4a-2017, CISPR 16-1-4-2019, GB/T 6113.104-2021, and GB/T 17626.3-2016, comprehensive full-frequency (9kHz~18GHz) and full-parameter testing is conducted on electromagnetic anechoic chambers, including shielding effectiveness, normalized site attenuation, voltage standing wave ratio, and field uniformity.

The testing parameters are as follows:

1) Shielding Effectiveness: Testing standard (method) Measurement method for shielding effectiveness of electromagnetic shielding chambers GB/T 12190-2021 5;

2) Normalized Site Attenuation: Testing standard (method) American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9kHz to 40GHz Amendment 1: Test Site Calibration ANSI C63.4-2014+AMD1:2017 Appendix D;

Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-4: Radio disturbance and immunity measuring apparatus – Antennas and test sites for radiated disturbance measurements CISPR 16-1-4:2019+AMD1:2020 6;

Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-4: Radio disturbance and immunity measuring apparatus – Antennas and test sites for radiated disturbance measurements GB/T 6113.104-2021 6

Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-4: Radio disturbance and immunity measuring apparatus – Antennas and test sites for radiated disturbance measurements EN55016-1-4:2019+A1:2020 6.4;

3) Voltage Standing Wave Ratio: Testing standard (method) Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-4: Radio disturbance and immunity measuring apparatus – Antennas and test sites for radiated disturbance measurements CISPR 16-1-4:2019+AMD1:2020+AMD2:2023 CSV 7.3;

Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-4: Radio disturbance and immunity measuring apparatus – Antennas and test sites for radiated disturbance measurements GB/T 6113.104-2021 7.3;

Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-4: Radio disturbance and immunity measuring apparatus – Antennas and test sites for radiated disturbance measurements EN55016-1-4:2019+A1:2020 7.6;

4) Field Uniformity: Testing standard (method) Electromagnetic compatibility – Testing and measurement techniques – Radiated, radio-frequency, electromagnetic field immunity test GB/T 17626.3-2016 6.2;   Electromagnetic compatibility (EMC) – Part 4-3: Testing and measurement techniques – Radiated, radio-frequency, electromagnetic field immunity test IEC 61000-4-3:2020 6.3;

5) Background Noise: Testing standard (method) Specification for radio disturbance and immunity measuring apparatus and methods – Part 2-3: Methods of measurement of disturbances and immunity – Radiated disturbance measurements GB/T 6113.203-2020 7.3,7.6;

Specification for radio disturbance and immunity measuring apparatus and methods – Part 2-3: Methods of measurement of disturbances and immunity – Radiated disturbance measurements CISPR 16-2-3:2016+AMD1:2019+AMD2:2023 7.3,7.6;

6) ALSE Equivalent Field Strength: Testing standard (method) Vehicles, boats, and internal combustion engines – Radio disturbance characteristics – Limits and methods of measurement for the protection of on-board receivers Appendix J Performance validation of ALSE (150kHz～1GHz) GB/T 18655-2018 Appendix;

Vehicles, boats, and internal combustion engines – Radio disturbance characteristics – Limits and methods of measurement for the protection of on-board receivers Appendix I Performance validation of ALSE (150kHz～1GHz) CISPR 25:2021 Appendix I;