The AMF-4B-03400420-30-30P from Narda-MITEQ is a RF Amplifier with Frequency 3.4 to 4.2 GHz, Gain 40 dB, Gain Flatness ± 1 dB, Noise Figure 3 dB, Output Power 30 dBm. Tags: Power Amplifier, Low Noise Amplifier. More details for AMF-4B-03400420-30-30P can be seen below.