The PCM4Q4SCL from Empower RF is a RF Amplifier with Frequency 1.805 to 1.88 GHz, Small Signal Gain 44 to 46 dB pk-pk, Gain Flatness ±0.5 dB, Input Return Loss -14 dB, Spurious -70 dBc. Tags: Power Amplifier. More details for PCM4Q4SCL can be seen below.