The Sensis Weather Data Extractor (WDX) extracts and reports real-time weather contours from primary radar video signals. Contours are transmitted in digital format via standard telecommunication lines.

The WDX utilizes both radar generated MTI video and a clear day map to minimize false weather declarations due to ground clutter. Modern weather processing techniques including M of N detection, contour smoothing, and programmable beam fill, provide high quality advisory weather outputs. Data rate flexibility allows output data every N scans or to interleave each level output on successive scans to aid in digital bandwidth management. The WDX provides up to six weather levels.