The HEM080A from Sainty-Tech Communications Limited is a RF Amplifier with Frequency 1000 to 4000 MHz, Gain 24 to 25 dB, Gain Flatness ±1.0 dB, Noise Figure 2.5 dB, Output Power 20 to 21 dBm. Tags: Power Amplifier. More details for HEM080A can be seen below.