Mike has written up this new and informative guide on how to decode NAVTEX signals using SDRuno. NAVTEX is an international automated service for delivery of navigational and
meteorological warnings and forecasts, as well as urgent maritime safety information (MSI) to ships on 490 kHz, 518 kHz and 4209.5 kHz. His article shows you how to set things up using Navarea stations on 518kHz as an example.
Click here to read the article – https://sdrplay.com/resources/decoding_navtex.pdf