The APTC3-01000200-0600-D4-K from AmpliTech is a Multi-Octave Cryogenic Amplifier that operates from 1 to 2 GHz. This amplifier provides a gain of 36 dB with flatness of ±1 dB and has a noise figure of 0.6 dB. It has a VSWR of less than 2.5:1. The amplifier is available in a module that measures 0.70 x 0.64 x 0.29 inches with SMA female connectors.