The AMFW-6S-03700420-28 from Narda-MITEQ is a RF Amplifier with Frequency 3.7 to 4.2 GHz, Gain 50 dB, Gain Flatness ± 0.5 dB, Noise Figure 0.4 dB, Output Power 10 dBm. Tags: Low Noise Amplifier. More details for AMFW-6S-03700420-28 can be seen below.