The YSF-122+ from Mini Circuits is a RF Amplifier with Frequency 800 MHz to 1.2 GHz, Gain 20.4 dB, Gain Flatness ± 0.2 dB, Noise Figure 3.4 dB, Output Power 49 to 20.5 dBm. Tags: Surface Mount, Power Amplifier. More details for YSF-122+ can be seen below.