The GRF4004 from Guerrilla RF is a RF Amplifier with Frequency 100 MHz to 3.8 GHz, Gain 11.5 to 12.5 dB, Noise Figure 0.95 to 1.15 dB, Output Power 25.2 to 26.7 dBm, Output Power 0.33 to 0.47 W. Tags: Surface Mount, Low Noise Amplifier, Driver Amplifier, Power Amplifier, Gain Block. More details for GRF4004 can be seen below.