The BL011 from BeRex, Inc. is a RF Amplifier with Frequency 5 MHz to 4 GHz, Gain 15.5 to 22 dB, Noise Figure 0.91 to 1.30 dB, Output Power 18 to 20.5 dBm, Output Power 0.06 to 0.11 W. Tags: Surface Mount, Low Noise Amplifier. More details for BL011 can be seen below.