The HE383B-3L from Sainty-Tech Communications Limited is a RF Amplifier with Frequency 20 to 600 MHz, Gain 13 to 14 dB, Gain Flatness ±0.5 dB, Noise Figure 1.5 dB, Output Power 24 to 24.5 dBm. Tags: Power Amplifier. More details for HE383B-3L can be seen below.