The 125S1G6M4 from AR RF/Microwave Instrumentation is a RF Amplifier with Frequency 700 MHz to 6 GHz, Gain 52 dB, Noise Figure 10 dB, Output Power 50 to 50.8 dBm, Output Power 100 to 120.23 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for 125S1G6M4 can be seen below.