The UTO-521 from Teledyne Microwave Solutions is a RF Amplifier with Frequency 50 to 500 MHz, Small Signal Gain 27 to 30 dB pk-pk, Gain Flatness ±1 dB, Noise Figure 3 to 4 dB, Output Power 5.5 to 7 dBm. Tags: Power Amplifier. More details for UTO-521 can be seen below.