The AFS3-20202120-25-8P-4 from Narda-MITEQ is a RF Amplifier with Frequency 20.2 to 21.2 GHz, Gain 18 dB, Gain Flatness ± 1 dB, Noise Figure 2.5 dB, P1dB 8 dBm. Tags: Power Amplifier, Low Noise Amplifier. More details for AFS3-20202120-25-8P-4 can be seen below.