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Semi-anechoic Chamber


AVI commissioned a semi-anechoic chamber in November 2022 measuring 9.6m in length, 6.4m in width and 6.15m high to undertake compliance and pre compliance testing for radio emissions from AVI devices.

AVI’s chamber is rated to perform:

  • NSA; 30MHz to 1 GHz, CISPR 16-1-4  ±3.5dB for a 2m QZ, 2m Height at 3m test distance
  • sVSWR; 1GHz to 18GHz, CISPR 16-1-4 to 6dB for a 2m OZ, 2m Height at 3m test distance
  • Field Uniformity; 80MHz to 6GHz, EN61000-4-3, for a 1.5m x 1.5m UFA at test distance of 3m
  • 16 points Oto 6dB from 80MHz to 1 GHz, 75% of test points

Country and Military Compliance Testing

AVI utilises this chamber on our mining products to validate pre-compliance testing for Emissions and Susceptibility compliance such as CE and FCC.

For military products AVI tests its products to MIL-STD-461G, RTCA DO-160G and MIL-STD-704F where applicable. Some tests AVI perform include:

MIL-STD-461 Tests:

CE102: Conducted Emissions, radio frequency potential, power leads.

CS101: Conducted Susceptibility, power leads.

CS114: Conducted Susceptibility, bulk cable injection.

CS115: Conducted Susceptibility, bulk cable injection, impulse excitation.

CS116: Conducted Susceptibility, damped sinusoid transients, cables and power leads.

RE102: Radiated Emissions, electric field.

RS103: Radiated Emissions, antenna spurious and harmonic outputs.

RTCA DO-160G Tests:

Section 17 – Voltage Spike

Section 19 – Induced Signal Susceptibility

Section 25 – Electrostatic Discharge

MIL-STD-704F Tests:

LDC101 – Load Measurements

LDC102 – Steady State Limits for Voltage

LDC103 – Voltage Distortion Spectrum

LDC104 – Total Ripple

LDC105 – Normal Voltage Transients

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