The APT22-17702220-1413-D22 from AmpliTech, Inc. is a RF Amplifier with Frequency 17.7 to 22.2 GHz, Gain 27 dB, Gain Flatness ±2 dB, Noise Figure 1.45 dB. Tags: Drop-In, Low Noise Amplifier. More details for APT22-17702220-1413-D22 can be seen below.