June 2026 | Technical Report NTIA TR-26-582
Measured Out-of-Band Emissions in the 36–37 GHz Band from an n260 (37–40 GHz) Millimeter-Wave 5G Base Station
Cite This Publication
Jeffery A. Wepman et al., “Measured Out-of-Band Emissions in the 36–37 GHz Band from an n260 (37–40 GHz) Millimeter-Wave 5G Base Station,” Technical Report NTIA TR-26-582, U.S. Department of Commerce, National Telecommunications and Information Administration, Institute for Telecommunication Sciences, June 2026. https://doi.org/10.70220/f69k22d6
Jeffery A. Wepman 
, Silas T. Thompson, Ryan S. McCullough 
, Edward F. Drocella Jr., April Lundy, Gerardo C. Saqueton, and Kenneth J. Brewster
Abstract:
Out-of-band emissions (OOBE) measurements in the 36–37 GHz band were performed on a commercially available outdoor 5G millimeter-wave (mmWave) gNodeB operating in the n260 band (37–40 GHz). The 5G mmWave gNodeB is part of the Institute for Telecommunication Sciences (ITS) 5G mmWave test cell site located at the U.S. Department of Commerce Table Mountain Field Site and Radio Quiet Zone near Boulder, Colorado. The test cell site and measurement system used to perform these field measurements are described. Several spectrum captures are included to display both the in-band and out-of-band frequency characteristics of the mmWave signals. Determination of effective isotropic radiated power and a method to approximate the inferred total radiated power are included. These are used to facilitate the comparison of ITS OOBE measurement results to the limits set by the International Telecommunication Union Resolution 243 World Radiocommunication Conference 2019 specifications.
Keywords: millimeter wave; Table Mountain; emission measurement; 5G; Table Mountain Radio Quiet Zone; gNodeB; International Telecommunication Union Resolution 243; n260 band; out-of-band emissions; OOBE; total radiated power; TRP
For technical information concerning this report, contact:
Jeffery A. Wepman
Institute for Telecommunication Sciences
(720) 642-8812
jwepman@ntia.gov
For funding information concerning this report, click this link.
Funding Information
Performing Agency
U.S. Department of Commerce
National Telecommunications and Information Administration
Institute for Telecommunication Sciences
325 Broadway
Boulder, CO 80305
https://ror.org/00mj5bc69
Funding Agency
U.S. Department of Commerce
National Telecommunications and Information Administration
Office of Spectrum Management
1401 Constitution Ave., N.W.
Washington, D.C. 20230
Disclaimer:
Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.
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