Field Strength (dBμV/m)=Measured Voltage (dBμV)+Antenna Factor (dB/m)Field Strength (dB mu V/m) equals Measured Voltage (dB mu V) plus Antenna Factor (dB/m)
SAE ARP958, officially titled is an Aerospace Recommended Practice (ARP) published by SAE International. It is the definitive industry standard that describes a "standardized and economical method for the checkout and calibration of electromagnetic interference measurement antennas."
: Added other common antennas like biconical and log-periodic arrays, which became staples in shield room tests. sae arp 958pdf free
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Originally released in 1968 to evaluate log-spiral antennas, this Aerospace Recommended Practice (ARP) has evolved over decades. It details the specific requirements needed to determine an accurate . Antenna Factors convert the raw voltage read by an EMI receiver into an absolute electric or magnetic field strength value ( ), allowing labs to accurately gauge interference levels. Antenna Factors convert the raw voltage read by
is a recommended practice issued by SAE International . It defines the standard methods and techniques for the checkout and calibration of antennas used in broadband electromagnetic interference (EMI) measurements. Key Aspects of ARP958:
for broadband antennas. While most antenna calibrations are performed in the "far field," SAE ARP 958 is unique because it focuses on near-field measurements Military Standards : It is essential for compliance with MIL-STD-461 (specifically RE102). Aerospace Standards : It is used for commercial aircraft testing under RTCA/DO-160 Section 21 Shielded Rooms
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