The PCM3Q4AFQ from Empower RF is a RF Amplifier with Frequency 869 to 894 MHz, Small Signal Gain 54 to 55 dB pk-pk, Gain Flatness ±0.75 dB, Input Return Loss -20 dB, Harmonics -60 to -40 dBc. Tags: Power Amplifier. More details for PCM3Q4AFQ can be seen below.