The BVA305B from BeRex, Inc. is a RF Amplifier with Frequency 40 MHz to 4 GHz, Gain 13.4 to 15.4 dB, Noise Figure 3.2 dB, Output Power 14.8 dBm, Output Power 0.04 W. Tags: Surface Mount, Digital Variable Gain Amplifier, Gain Block. More details for BVA305B can be seen below.