The AMF-4D-00501800-50-21P from Narda-MITEQ is a RF Amplifier with Frequency 500 MHz to 18 GHz, Gain 24 dB, Gain Flatness ± 2 dB, Noise Figure 5 dB, Output Power 21 dBm. Tags: Power Amplifier, Low Noise Amplifier. More details for AMF-4D-00501800-50-21P can be seen below.