The A300 from Electronics & Innovation Ltd is a RF Amplifier with Frequency 0.3 to 35 MHz, Gain 55 dB, Gain Flatness +/- 1.5 dB, Output Power 54.77 to 56.99 dBm, Output Power 299.92 to 500.03 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for A300 can be seen below.