The HE387A from BOWEI Integrated Circuits is a RF Amplifier with Frequency 20 to 400 MHz, Gain 25 to 26 dB, Gain Flatness ±0.5 dB, Noise Figure 2.3 to 3 dB, Output Power 16.5 to 17 dBm. Tags: Drop-In, Power Amplifier. More details for HE387A can be seen below.