Web SDR stands for Web Software-Defined Radio. It refers to an online platform that allows users to remotely access and control software-defined radios over the internet. Software-defined radios are devices that use software to process radio signals instead of traditional hardware components. With Web SDR, you can tune into different frequencies, such as AM, FM, shortwave, or even amateur radio bands, using a web browser. It provides a way for radio enthusiasts, hobbyists, and researchers to explore and listen to radio signals from around the world without needing to own specialized radio equipment.