The EMC051840B from EMC Instruments is a RF Amplifier with Frequency 0.5 to 18 GHz, Gain 40 dB, Gain Flatness ±4 dB, Noise Figure 2.5 dB, P1dB 10 dBm. Tags: Benchtop / Rackmount, Low Noise Amplifier, Pre-Amplifier. More details for EMC051840B can be seen below.