Because SAE ARP 958 is a technical standard protected by copyright, finding an official "free PDF" can be difficult. It is best practice to use authorized sources to ensure you have the latest revision (Rev E or later). Official Source
SAE ARP958 establishes the standard procedures for determining the antenna factors (AF) of directional antennas. It specifically targets antennas used for radiated emission and susceptibility testing over the frequency range of 20 MHz to 40 GHz. Key Objectives of the Standard
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The scope of SAE ARP958 is specific and crucial for several global test standards. The standard outlines a method for calibrating broadband antennas within a shielded room, a critical controlled environment for EMC testing. Its application is for measuring a source one meter from the antenna, the typical distance used when performing military EMC testing per documents like MIL-STD-461. sae arp 958pdf free
SAE ARP958 is a standard published by SAE International (formerly the Society of Automotive Engineers). The document is formally titled
SAE ARP958 is a cornerstone document for anyone involved in high-frequency EMC and EMI testing. By standardizing the three-antenna calibration method, it ensures that field strength measurements across the aerospace and defense sectors remain accurate and consistent. While searching for a "free PDF" is a common reaction to high documentation costs, the technical, legal, and security risks far outweigh the monetary savings. Always opt for official channels or accredited third-party labs to ensure your engineering data stands up to scrutiny.
(and others), which allows engineers to determine the specific characteristics of an antenna without needing a "perfect" reference antenna. Compliance
Eliminates variables by defining exact heights and distances for antenna calibration. Because SAE ARP 958 is a technical standard
Measurements are typically performed at specific distances, such as 1 meter or 3 meters, depending on the frequency and the specific testing standard being targeted (like MIL-STD-461). Why Engineers Search for "SAE ARP958 PDF Free"
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: Aerospace engineering relies on precision and legal certification. Using pirated standards can invalidate laboratory accreditation. How to Access SAE ARP 958 Legally It specifically targets antennas used for radiated emission
SAE standards are highly precise documents developed by committees of industry experts. Because of the rigorous process required to maintain and update them, SAE International sells these documents to fund their operations. A single copy of SAE ARP958 can cost several hundred dollars.
The standard, developed by the SAE International AE-4 Electromagnetic Compatibility Committee, outlines the definitive aerospace recommended practice for calibrating electromagnetic interference (EMI) measurement antennas at a 1-meter distance . For engineers aligning with stringent military and aerospace compliance protocols like MIL-STD-461 , RTCA/DO-160 , and CISPR 25 , obtaining and applying this document correctly is essential for achieving accurate Radiated Emissions (RE) testing.
If you’re an educator or accredited auditor, SAE occasionally provides review copies for course development or audit preparation. Email SAE’s customer service directly.
SAE ARP958 is a critical aerospace recommended practice that
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