A “low data rate” refers to a relatively slow transmission speed or throughput of data in a communication system. It means that data is being transmitted at a lower speed compared to higher data rates or faster transmission speeds. Low data rates can be suitable for certain applications where the amount of data being transmitted is small, or where power efficiency is more critical than high-speed data transfer. It’s often used in IoT (Internet of Things) devices and sensors that need to conserve battery life and can operate with minimal bandwidth.