The APT3-01000200-1515-D4-LM from AmpliTech, Inc. is a RF Amplifier with Frequency 1 to 2 GHz, Gain 40 dB, Gain Flatness ±1 dB, Noise Figure 2.00 dB. Tags: Low Noise Amplifier, Limiting Amplifier. More details for APT3-01000200-1515-D4-LM can be seen below.