The AFS3-00100400-18-ULN from Narda-MITEQ is a RF Amplifier with Frequency 100 MHz to 4 GHz, Gain 30 dB, Gain Flatness ± 1.3 dB, Noise Figure 1.8 dB, P1dB 10 dBm. Tags: Power Amplifier, Low Noise Amplifier. More details for AFS3-00100400-18-ULN can be seen below.