The S42 Series from AMETEK CTS is a RF Amplifier with Frequency 2 to 4 GHz, Gain 44 to 53 dB, Gain Flatness +/-3.0 dB, Output Power 43.01 to 51.76 dBm, Output Power 20 to 149.97 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for S42 Series can be seen below.