The 150A400M4 from AR RF/Microwave Instrumentation is a RF Amplifier with Frequency 100 kHz to 400 MHz, Gain 52 dB, Gain Flatness ±1.5 dB, Output Power 50 to 50.97 dBm, Output Power 100 to 125.03 W. Tags: Power Amplifier. More details for 150A400M4 can be seen below.