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Calibration uncertainty for the NIST PM/AM noise standards



Archita Hati, Craig W. Nelson, Neil Ashby, David A. Howe


NIST provides an on-site calibration service of the accuracy of phase modulation (PM) noise, amplitude modulation (AM) noise and noise floor of the measurement systems at a customer's site using one or more portable PM/AM secondary noise standards. In this document, we describe the calibration procedure for an additive type of noise standard and derive the total (or combined) uncertainty associated with its PM and AM reference noise levels.
Special Publication (NIST SP) - 250-90
Report Number


AM noise, Calibration uncertainty, Noise standard, PM noise


Hati, A. , Nelson, C. , Ashby, N. and Howe, D. (2012), Calibration uncertainty for the NIST PM/AM noise standards, Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed June 15, 2024)


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Created July 31, 2012, Updated November 10, 2018