The HE313 from Sainty-Tech Communications Limited is a RF Amplifier with Frequency 1 to 110 MHz, Gain 27 to 28 dB, Gain Flatness ±0.5 dB, Noise Figure 2.2 dB, Output Power 16 to 17 dBm. Tags: Power Amplifier. More details for HE313 can be seen below.