NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
CCEM KEY COMPARISON CCEM.rf-K18.CL (GT-RF/00-1) Noise in 50 Ω} coaxial line at frequencies up to 1 GHz
Published
Author(s)
Christopher Eio, David Adamson, James P. Randa, Djamel Allal, Rinadij Uzdin
Abstract
A measurement comparison of noise temperature has been carried out between four National Metrology laboratories in coaxial line at 30 MHz, 60 MHz and 1 Ghz. The identification of this intercomparison is CCEM.RF-K18.CL. Two noise sources have been measured. The following four national labortories participated in this intercomparison: NPL (United Kingdom), NIST (United States of America), BNM-LNE (France) and VNIIFTRI (Russia). The National Physical Laboratory (United Kingdom) acted as the pilot laboratory for the comparison. It can be seen that, there is generally good agreement between the laboratories.
Eio, C.
, Adamson, D.
, Randa, J.
, Allal, D.
and Uzdin, R.
(2006),
CCEM KEY COMPARISON CCEM.rf-K18.CL (GT-RF/00-1) Noise in 50 {Ω} coaxial line at frequencies up to 1 GHz, Metrologia, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32209
(Accessed October 22, 2025)