The LNA50M4G2S from Lotus Communication Systems is a RF Amplifier with Frequency 50 MHz to 4 GHz, Small Signal Gain 23 to 40 dB, Noise Figure 0.8 to 1 dB, P1dB 17.4 to 22.7 dBm, P1dB 0.05 to 0.19 W. Tags: Low Noise Amplifier. More details for LNA50M4G2S can be seen below.