The VBA250-400 from Vectawave Technology is a RF Amplifier with Frequency 0.01 to 250 MHz, Gain 56 dB, Gain Flatness ±2 dB, Output Power 53.98 to 54.77 dBm, Output Power 250.03 to 299.92 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for VBA250-400 can be seen below.