The BBV 9721 from Schwarzbeck Mess - Elektronik OHG is a RF Amplifier with Frequency 18 to 40 GHz, Gain 27 to 33 dB, Gain Flatness ±4 dB, Noise Figure 5.5 dB, P1dB 15 dBm. Tags: Pre-Amplifier, Low Noise Amplifier. More details for BBV 9721 can be seen below.