IRE standards on electron tubes: Definition of terms, 1962 (62 IRE 7. S2)

This IRE standard provides definitions for: Effective Input Noise Temperature, (of a multiport transducer with one port designated as the output port); Effective Input Noise Temperature, (of a rnultiport transducer with one port designated as the output port); Operating Noise Temperature (of a system under operating conditions); and Operating Noise Temperature, (of a system under operating conditions).