The 350L from Electronics & Innovation Ltd is a RF Amplifier with Frequency 0.25 to 150 MHz, Power Gain 50 dB, Gain Flatness +/- 1.5 dB, Output Power 46.99 to 50 dBm, Output Power 50 to 100 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for 350L can be seen below.