The HE550BL from BOWEI Integrated Circuits is a RF Amplifier with Frequency 600 MHz to 1 GHz, Gain 24 to 27 dB, Gain Flatness ±1 to 1.25 dB, Noise Figure 0.9 to 1.2 dB, Output Power 3 to 10 dBm. Tags: Drop-In, Low Noise Amplifier. More details for HE550BL can be seen below.