The HEM572L from Sainty-Tech Communications Limited is a RF Amplifier with Frequency 800 to 3500 MHz, Gain 11 to 14 dB, Gain Flatness ±0.75 dB, Noise Figure 2.3 dB, Output Power 10 to 11.5 dBm. Tags: Power Amplifier. More details for HEM572L can be seen below.