10M EMC Chamber
Usage:
Electromagnetic compatibility (EMC) testing of communication equipment, electronics and electrical equipment, electromagnetic interference (EMI) and electromagnetic sensitivity (EMS) testing. Applicable frequency 30MHz-18GHz can be extended to 40GHz.
Chamber specifications and performance:
1. Shielding performance, meeting EN 50147-1, GB12190-90.
Technical parameters:
|
|
Frequency | Shielding effectiveness |
| Magnetic field | 14 kHz | ＞ 60 dB |
| Magnetic field | 100 kHz | ＞ 80 dB |
| Electric field | 100 kHz | ＞ 100 dB |
| Magnetic field | 1 MHz | ＞ 100 dB |
| Electric field | 1 MHz | ＞ 100 dB |
| Electric field | 100 MHz | ＞ 100 dB |
|
|
1 GHz | ＞ 100 dB |
| Plane wave | 10 GHz | ＞ 100 dB |
| Microwave | 18 GHz | ＞ 100 dB |
| Microwave | 100 MHz | ＞ 100 dB |
| Electric field | 1 GHz | ＞ 100 dB |
2. Normalized site attenuation test is performed from 30 MHz to 1 GHz at all positions in a cylindrical quiet zone with a diameter of 3 m according to the procedure and regulations of ANSI C63.4-2003, normalized attenuation (NSA) measured in accordance with the 10 m method, Value and theoretical deviation is better than ± 4dB; 1GHz to 18GHz frequency range using the transmission loss (TL) test method for testing, only at 5GHz, 10GHz and 18GHz three points to test, normalized attenuation (NSA) value and theoretical value Deviation is better than ± 4dB. At the same time to meet CISPR16, EN50147-2, CISPR22-1997, GB9254-1998, VCCI V-3 / 99.05 standard on the site attenuation requirements.
3.According to IEC61000-4-3 steps and regulations, in line with EN61000-4-3: 1996 and GB / T 17626.3-1998 requirements, in the 30MHz to 1GHz field uniformity test, the standard field for the turntable above 0.8 m -2.3 Meters range of 1.5 m x 1.5 m vertical plane, according to the 3 m test distance requires 16 test points of 75% or 12 field uniformity between 0-6dB; 1GHz to 18GHz test only at 5GHz, 10 GHz And 18:00 three points to less than 3v / m for testing.
4.According to CISPR22 Claas B (GB9254-1998), the measured ambient level value is at least 10 dB below the specified B-class limit in the frequency range 30MHz to 1GHz without EUT.
