A unique wide band receiver, warm electronics, for the FAST telescope
A unique wide band receiver for radio astronomy has been designed and constructed. Receivers used for radio astronomy consist of two parts, the front end cold electronics and the back end warm electronics. While the cold electronics provides for a low noise amplifier and receiver calibrations, the warm electronics provides analog signal processing that shapes and filters the signals before digitizing. The following describes the unique features of the warm electronics receiver built by Caltech for installation on China's Five hundred meter Aperture Spherical Telescope (FAST).