The Signal Hound USB-SA124B is a Software Defined Radio (SDR) optimized as a spectrum analyzer. It operates from 100 kHz to 12.4 GHz with a wide dynamic range from -151 dBm to 10 dBm and a 6 MHz resolution bandwidth. The USB-SA124B is powered by a USB port, eliminating the need for a separate power supply. It is available in a compact, lightweight package making it easy to carry around. The analyzer is compact, easy to use and a great tool for general lab use, engineering students, ham radio enthusiasts, and electronics hobbyists.