The HE550AL from BOWEI Integrated Circuits is a RF Amplifier with Frequency 500 to 700 MHz, Gain 25 to 27 dB, Gain Flatness ±1 to 1.25 dB, Noise Figure 0.9 to 1.2 dB, Output Power 3 to 8 dBm. Tags: Drop-In, Low Noise Amplifier. More details for HE550AL can be seen below.