The 1040L from Electronics & Innovation Ltd is a RF Amplifier with Frequency 0.01 to 5 MHz, Power Gain 53 dB, Gain Flatness +/- 1 to +/- 2 dB, Output Power 56.02 to 56.99 dBm, Output Power 399.94 to 500.03 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for 1040L can be seen below.