Software Defined Radios (SDR)

Join Lee Johnson from NFARL as he presents a comprehensive overview of Software Defined Radios (SDRs). In this presentation, Lee delves into the fascinating world where traditional radio hardware is replaced by flexible software. He covers the historical evolution of SDRs, from their origins in the 1970s with U.S. government research into software signal processing , through key advancements like DARPA's SpeakEasy project in 1990 and the Joint Tactical Radio System (JTRS) program in the late 1990s. Lee also discusses the entry of amateur radio operators into the SDR arena, highlighted by FlexRadio Systems' SDR-1000 in 2003 , and the widespread adoption of SDR architectures in cellphones starting in 2009

The presentation provides a technical overview, explaining how SDRs replace traditional hardware components like mixers and filters with software , offering benefits such as adaptability and cost-efficiency. Lee also covers modern SDR platforms, including the Hermes-Lite 2 transceiver and the Thetis software. Discover how SDRs are revolutionizing various fields, from telecommunications (4G, 5G, 6G networks) and emergency services to space communication , amateur radio , and the Internet of Things. This video is a must-watch for anyone interested in the present and future of radio technology, emphasizing why SDR literacy is becoming an essential skill for modern radio enthusiasts.

Видео Software Defined Radios (SDR) канала NFARL