The JS3-04002000-21-8P from Narda-MITEQ is a RF Amplifier with Frequency 4 to 20 GHz, Gain 32 dB, Gain Flatness ± 1.7 dB, Noise Figure 2.1 dB, P1dB 8 dBm. Tags: Power Amplifier, Low Noise Amplifier. More details for JS3-04002000-21-8P can be seen below.