The HEM364B from Sainty-Tech Communications Limited is a RF Amplifier with Frequency 1 to 200 MHz, Gain 32 to 33.5 dB, Gain Flatness ±0.5 dB, Noise Figure 1.3 dB, Output Power 6 to 8 dBm. Tags: Power Amplifier. More details for HEM364B can be seen below.