Testing for EMC/RFI Emissions of LED Navigation Lights and Susceptibility Levels for Marine Radionavigation Receivers Rapid Evaluation and Analysis of Current Technologies (REACT) Report

USCG Safety Alert 13-18 warns of light-emitting-diodes (LEDs) interfering with shipboard Very High Frequency (VHF) and Automatic Information System (AIS) signals despite adhering to existing lighting standards which generally either exempt or are not otherwise intended for specific maritime applications. This report documents the results of preliminary electromagnetic interference (EMI) testing on a set of commercially available LEDs. The results confirm that certain LED designs installed in close proximity to communications equipment can generate significant levels of EMI and recommends additional testing and analysis to generate a new standard for shipboard LEDs.