The HE279 from Sainty-Tech Communications Limited is a RF Amplifier with Frequency 100 to 3000 MHz, Gain 25 to 31 dB, Gain Flatness ±1.0 dB, Noise Figure 1.5 dB, Output Power 10 to 12 dBm. Tags: Power Amplifier. More details for HE279 can be seen below.