The APTC3-01000200-0500-D4-V from AmpliTech, Inc. is a RF Amplifier with Frequency 1 to 2 GHz, Gain 36 dB, Gain Flatness ±1 dB, Noise Figure 1.00 dB. Tags: Low Noise Amplifier, Cryogenic Amplifier. More details for APTC3-01000200-0500-D4-V can be seen below.