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CMCs General Physics (2)
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Radio frequency measurements (2)
RF noise: noise temperature in waveguides (2)
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United Kingdom (2)
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United Kingdom, NPL (National Physical Laboratory)
Complete CMCs in Electricity and Magnetism for United Kingdom (.PDF file)
RF noise: noise temperature in waveguides. Noise source, 77 K to 1E+07 K
Relative expanded uncertainty (k = 2, level of confidence 95 %) in mK/K: 10 to 22
Radiometer
Frequency: 18 GHz to 110 GHz
Waveguide designation: R220, R320, R400, R620, R900
Approved on 06 August 2013
Internal NMI service identifier: 435
Uncertainty table
 
RF noise: noise temperature in waveguides. Noise source, 600 K to 1000000 K
Relative expanded uncertainty (k = 2, level of confidence 95 %) in mK/K: 5.3 to 7.8
Radiometer
Frequency: 2.6 GHz to 18 GHz
Waveguide designation: R32, R70, R100, R140
Approved on 06 August 2013
Internal NMI service identifier: 431
Uncertainty table