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Often times the aircraft size prohibits the use of conventional anechoic lined EMI test chambers and special permits are required for performing the testing process outdoors.

Please first log in with a verified email before subscribing to alerts. However, the Low level test requires a complex analytical modeling approach to ensure compliance. This requires several factors to be considered prior to testing such as the need for specialized wrp power test equipment, aircraft system instrumentation and flight emulation, RF hazards regarding fuel ignition and personnel exposure and adherence to national RF transmission rules and regulations. An applicant may elect to establish an alternative method of compliance that is acceptable to the cognizant airworthiness authorities.

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High Level Tests are performed using peak and average field levels determined for one of three particular HIRF environments over a test frequency range up to 18 GHz. HIRF Testing of Aircraft Systems April 5, Early aircraft designs typically consisted of a series of cables, chains, cranks and various other mechanisms to operate the systems which made the aircraft fly. As the voice of the U. This standard is not included in any packages.


Proceed to Checkout Continue Shopping. If the document is revised or amended, you will be notified by email. Add to Alert PDF. The information in this guide represents a collection of best engineering practices that have been used to certify aircraft HIRF protection.

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We have no amendments or corrections for this standard. Early aircraft designs typically consisted of a series of cables, chains, cranks and various other mechanisms to operate the systems which made the aircraft fly.

Due to increasing advancements in the field of electronics over the last 60 years, mechanical flight control devices are being replaced or augmented with electronic circuitry for enhanced accuracy, reliability and, most of all, human 55583. Therefore, the need for EMI testing has never been more important for all commercial and military aircraft in use today.

This 55583 is preferred over high level testing for its reduced RF exposure levels and RF hazard considerations. This guide is neither mandatory nor regulatory in nature and does not constitute a regulation or legal interpretation of the regulation. These concerns are based on the phenomena where electronic circuitry fails to operate as intended i. Please first verify your email before subscribing 553 alerts.


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Already Subscribed to this document. Subscription pricing is determined by: While this document is generally consistent with AC and draft HIRF AMJ, users of this document should verify that the guidance in this document is acceptable to the cognizant airworthiness authorities. Need more than one copy?

However, these changes give rise to myriad new concerns related to electromagnetic interference EMI of critical on-board electronic systems. Standards Subscriptions 55583 ANSI provides a money-saving, multi-user solution for accessing standards.

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Your Alert Profile lists the documents that will be monitored. Models are required to estimate the level of influence ground plane coupling will have on low level swept current test results, especially where it is impractical to elevate the aircraft safely due to its size.

Generally, 2-D and 3-D computational models of the airframe 5583 to the first electrical resonance are required. This standard is also available to be included in Standards Subscriptions. This process uses a direct drive method up to the first airframe electrical resonance, and a radiated field test methods above the first airframe resonance.