The HE244B from BOWEI Integrated Circuits is a RF Amplifier with Frequency 2 to 8 MHz, Gain 18 to 21 dB, Gain Flatness ±1 dB, Noise Figure 2.7 to 3.5 dB, Output Power 10 to 10.5 dBm. Tags: Drop-In, Power Amplifier. More details for HE244B can be seen below.