The HE388D-2 from BOWEI Integrated Circuits is a RF Amplifier with Frequency 20 to 600 MHz, Gain 21 to 23 dB, Gain Flatness ±0.6 to 1 dB, Noise Figure 0.8 to 1.5 dB, Output Power 19 to 20 dBm. Tags: Drop-In, Power Amplifier. More details for HE388D-2 can be seen below.