The ETPA4K400M-150 from Etrontimes Technology is a RF Amplifier with Frequency 4 kHz to 400 MHz, Gain 52 dB, Gain Flatness ±3 dB, P1dB 50 dBm, P1dB 100 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for ETPA4K400M-150 can be seen below.