The AT-LNA-0003-2801 from AT Microwave is a RF Amplifier with Frequency 100 MHz to 3.5 GHz, Gain 28 dB, Small Signal Gain 28 dB, Gain Flatness ±2 dB, Noise Figure 1 to 1.5 dB. Tags: Low Noise Amplifier. More details for AT-LNA-0003-2801 can be seen below.