The HES574 from Sainty-Tech Communications Limited is a RF Amplifier with Frequency 600 to 2500 MHz, Gain 12 to 14 dB, Gain Flatness ±1.0 dB, Noise Figure 2.9 dB, Output Power 19 to 20.5 dBm. Tags: Power Amplifier. More details for HES574 can be seen below.