While SAE ARP 958 is a copyrighted document, there are some ways to access a free PDF version:
: ARP 958 provides the math and methods (like the Three Antenna Method ) to ensure that the "Antenna Factor" used by engineers is accurate at this close distance. Finding the PDF for "Free"
Without standardized calibration, different laboratories would produce inconsistent results, leading to potential safety failures in aircraft electronics. The standard primarily focuses on the "three-antenna method," which allows for the determination of antenna gain and antenna factors without needing a previously calibrated "standard" antenna. The Risks of Searching for Free PDFs
Here's a simple example of how one might structure a report on a technical document:
: The primary source for the most current version.