2.0 GHz to 4.0 GHz Automated Radiometer Operation and Service Manual

摘要

The equipment described by this manual is the 2.0 to 4.0 GHz subsystem of the automated radiometer. This section of the multiband automated radiometer is a coaxial total power radiometer which implements a six-port reflectometer for impedance characterization and correction and utilizes a newly developed broadband cryogenic noise standard. NBS noise measurement capability in this frequency band has been expanded by the addition of this system which adds continuous frequency coverage to existing services along with the capability to measure cryogenic noise sources. This manual describes the 2.0 to 4.0 GHz frequency band of the NBS automated radiometer and provides operation and service information.