The Next Generation of Earth Networks Lightning Digital Signal Processor

Lightning location data is crucial for weather safety, serving both alerting systems and severe storm forecasting. This data relies on advanced hardware and software to accurately detect and analyze lightning in real-time, ensuring the highest quality information. The Earth Networks Total Lightning Network (ENTLN) consists of over 1800 wideband electric field sensors distributed globally. Although the performance of this system remains cutting edge, the hardware has largely remained unchanged since the network's launch in 2009. Recently, ENTLN has been undergoing a comprehensive redesign, starting with the real-time lightning data processor and analog antenna. This presentation will focus on the next phase of the upgrade: a complete overhaul of the digital signal processing (DSP) unit. The DSP is responsible for executing Earth Networks' complex data filtering and compression algorithms and transmitting data to the central processing system. The new hardware will enhance the sensor's capabilities, boosting processing power and sensitivity. Additionally, we are introducing features to simplify maintenance, which is essential for managing such an extensive network. We will detail these system upgrades, present field test results, and discuss the rollout planned before the AMS 2025 Annual Meeting.