The BBV 9743 B from Schwarzbeck Mess - Elektronik OHG is a RF Amplifier with Frequency 10 MHz to 6 GHz, Gain 28 dB, Gain Flatness ±3 dB (Amplitude Flatness), Noise Figure 2.7 dB, P1dB -18 dBm. Tags: Pre-Amplifier, Low Noise Amplifier. More details for BBV 9743 B can be seen below.