The GRF4012 from Guerrilla RF is a RF Amplifier with Frequency 400 to 4200 MHz, Gain 15.5 to 17.8 dB, Noise Figure 0.9 dB, P1dB 19 to 22.5 dBm, IP3 33 dBm. Tags: Surface Mount, Gain Block, Low Noise Amplifier. More details for GRF4012 can be seen below.