The BVA304 from BeRex, Inc. is a RF Amplifier with Frequency 50 MHz to 4 GHz, Gain 14 dB, Noise Figure 3.7 dB, Output Power 19 dBm, Output Power 0.08 W. Tags: Surface Mount, Digital Variable Gain Amplifier, Gain Block. More details for BVA304 can be seen below.