The UTO-503 from Teledyne Microwave Solutions is a RF Amplifier with Frequency 5 to 500 MHz, Small Signal Gain 8.5 to 10 dB pk-pk, Gain Flatness ±1 dB, Noise Figure 4.5 to 5 dB, Output Power 13 to 15 dBm. Tags: Power Amplifier. More details for UTO-503 can be seen below.