The HEM382B-1 from Sainty-Tech Communications Limited is a RF Amplifier with Frequency 20 to 1000 MHz, Gain 10 to 11 dB, Gain Flatness ±0.5 dB, Noise Figure 1.8 dB, Output Power 18 to 18.5 dBm. Tags: Power Amplifier. More details for HEM382B-1 can be seen below.