The APT22-17701970-1611-D22 from AmpliTech, Inc. is a RF Amplifier with Frequency 17.7 to 19.7 GHz, Gain 38 dB, Gain Flatness ±1 dB, Noise Figure 1.60 dB. Tags: Drop-In, Low Noise Amplifier. More details for APT22-17701970-1611-D22 can be seen below.