The APTMP4-17802130-1618-D22 from AmpliTech, Inc. is a RF Amplifier with Frequency 17.8 to 21.3 GHz, Gain 20 dB, Gain Flatness ±2 dB, Noise Figure 1.60 dB. Tags: Drop-In, Low Noise Amplifier. More details for APTMP4-17802130-1618-D22 can be seen below.