A Comparison of the United Kingdom National Standards of Microwave Power in Waveguide and Coaxial Lines

A series of comparisons at 8.2 GHz between bolometric waveguide power standards and 50-¿ coaxial line calorimetric standards resulted in differences, with respect to the waveguide standard, of +0.20 to -0.06 percent during 12 comparisons and combined estimated 95-percent confidence limits of +0.35 percent.