The APTMP4-00100300-2021-D6 from AmpliTech, Inc. is a RF Amplifier with Frequency 100 MHz to 3 GHz, Gain 31 dB, Gain Flatness ±1.5 dB, Noise Figure 2.00 dB. Tags: Drop-In, Low Noise Amplifier. More details for APTMP4-00100300-2021-D6 can be seen below.