The APT22-17702400-2013-D22 from AmpliTech, Inc. is a RF Amplifier with Frequency 17.7 to 24 GHz, Gain 45 dB, Gain Flatness ±1.5 dB, Noise Figure 1.50 dB. Tags: Drop-In, Low Noise Amplifier. More details for APT22-17702400-2013-D22 can be seen below.