The 4011 from Ophir RF is a RF Amplifier with Frequency 290 to 320 MHz, Gain 57 dB, Gain Flatness ± 0.75 dB max, Output Power 56 to 56.99 dBm, Output Power 398.11 to 500.03 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for 4011 can be seen below.