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RTCA/DO-160 Section 20

RTCA DO-160 - Section 20 focuses on radio frequency susceptibility (radiated and conducted). Testing is performed to determine the performance requirements are met as defined in DO-160 section 20. The purpose of this standard is to determine if the equipment under test (EUT) can still function properly when exposed to radio frequency (RF) interference.

RTCA DO-160 Section 20 is now updated to adhere to the requirements of the FAA rule for High-Intensity Radiated Fields (HIRF) testing. This is a form of EMC testing that applies to equipment that is exposed to severe electromagnetic environments and would be dangerous if it were to fail. The purpose of this added requirement is to ensure human safety by establishing that the electrical systems on aircraft will operate properly if exposed to this type of environment.

During conducted susceptibility testing, the RF interface is coupled to the interconnecting cables and power leads of the EUT by using an injection probe. The RF current probe is used to monitor the RF current in the cable or lead under test. The RF power continues to increase until the relevant current level is reached.

While testing for radiated susceptibility, the EUT and its interconnecting cables and power leads are exposed to RF fields within the frequency range of 100 MHz to 18 GHz. Testing is completed by either using a standard semi-anechoic chamber or a reverberation chamber.

Avalon Test Equipment carries a variety of amplifiers to meet the requirements for DO-160 Section 20. Rent from Avalon and Test With Confidence®.

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