Summation Research, Inc. (SRI) is an engineering and manufacturing company providing high performance telemetry and data communication products and systems to defense, government and commercial markets worldwide. SRI specializes in unique off-the-shelf and custom solutions requiring expertise and innovation in RF, analog, and digital signal processing. Our products address a wide range of applications requiring the gathering, processing, and communication of vital test or operational data across a street, to manned and unmanned aircraft, or to orbiting satellites. SRIs Satellite Telemetry and Range Telemetry Equipment operates in common Commercial and Defense frequency bands, supporting flight control, data networking, ranging, image data, and TT&C requirements. Our Land Mobile Radio products support data acquisition and communications in transportation, Supervisory Control and Data Acquisition (SCADA) and other fixed and mobile markets.