The STA-014-22-20-SMA from Fairview Microwave is a RF Amplifier with Frequency 1.35 to 1.39 GHz, Gain 21 to 23 dB, Gain Flatness 0.5 to 1.3 dB, Supply Voltage 24 to 30 V. Tags: Bi-Directional Amplifier. More details for STA-014-22-20-SMA can be seen below.