RTL-SDR for VHF Air_AM/VHF Marine_FM Weather & Cyber Security

Introduction The RTL-SDR can conveniently be used to check both VHF Air & VHF Marine weather. Figure 1 shows the receive schematic. Recently a significant cyber security outage affected millions of Windows computers all around the world. I offer two simple solutions that can be easily applied before more outages happen. Receive Block Diagram Figure… Continue reading RTL-SDR for VHF Air_AM/VHF Marine_FM Weather & Cyber Security

OpenPlotter3 – Marine NAVTEX

Introduction In the previous post I looked at using OpenPlotter3 for receiving HF Weather Fax (Ref.1). In this post we will use OpenPlotter3 to receive Marine MF NAVTEX (Ref.2). NAVTEX transmissions contain valuable marine information such as navigation warnings, weather forecasts, ice information and MSI specific messages. The world is divided into different regions and… Continue reading OpenPlotter3 – Marine NAVTEX