The PSA-4132-38 from Teledyne Microwave Solutions is a RF Amplifier with Frequency 1 to 4 GHz, Small Signal Gain 19 to 22 dB pk-pk, Gain Flatness ±1 dB, Noise Figure 4.5 to 6.5 dB, P1dB 16 to 18.5 dBm. Tags: Power Amplifier. More details for PSA-4132-38 can be seen below.