The APTMP4-015200156-0510-D9-LN from AmpliTech, Inc. is a RF Amplifier with Frequency 1.52 to 1.56 GHz, Gain 40 dB, Gain Flatness ±0.3 dB, Noise Figure 0.50 dB. Tags: Low Noise Amplifier. More details for APTMP4-015200156-0510-D9-LN can be seen below.