The SP300L is self-developed LXI Class C compliant RF power meter mainframe from Prosund, forming a complete RF power test system when matched with SP300P wideband RF power sensors. Frequency coverage ranges from 10MHz to 53GHz, integrating average power, peak power, pulse power and pulse parameter (pulse width, repetition rate) measurement. Target applications include 5G/6G RF components, radar, satellite communication, wireless modules, RF power amplifiers, production RF FCT automation, university microwave labs and military electronic calibration.