The K3S from Communications & Power Industries is a RF Amplifier with Frequency 1.7 to 3.0 GHz, Gain 74 dB, Small Signal Gain 0.5 dB pk-pk, Output Power Limit 63 to 64 dBm, Harmonics -80 dBc. Tags: Benchtop / Rackmount, Power Amplifier. More details for K3S can be seen below.