United States Government Publishing Office publisher pbl distributor dst United States Commerce Department National Institute of Standards and Technology (NIST) author aut Government Organization Nupen, Wilhelm. author aut text government publication eng GOVPUB Executive Agency Publications executive 2020-07-13 Commerce Department 1959-07-28 monographic deposited born digital 72 digital object pages C 13. https://www.govinfo.gov/app/details/GOVPUB-C13-4b981c2141db955c8a3b69b600a4c0b6 P0b002ee1a7680506 on1132808590 (OCoLC)1132808590 DGPO 2020-07-13 2026-07-04 GOVPUB-C13-4b981c2141db955c8a3b69b600a4c0b6 machine generated eng fdlp C13 GOVPUB-C13-4b981c2141db955c8a3b69b600a4c0b6 4b981c2141db955c8a3b69b600a4c0b6 GOVPUB NBS Reports NOTE: THE “DATE ISSUED” ABOVE MAY DEFAULT TO JANUARY 1ST OF A GIVEN YEAR. TO THE VIEW THE MOST ACCURATE DATE OF ISSUE, REVIEW THE TITLE PAGE OF THE PUBLICATION. The National Bureau of Standards (NBS) Reports were preliminary or progress accounting documents intended for use within the government. Before material in the reports was formally published, it was subjected to additional evaluation and review. The reports were often called "graybacks" because of their gray covers. The NBS Reports were approved for public release by the Director of the National Institute of Standards and Technology (NIST) on October 9, 2015. National Institute of Standards and Technology Commerce Department. National Institute of Standards and Technology. 1959 1959-07-28 https://www.govinfo.gov/app/details/GOVPUB-C13-4b981c2141db955c8a3b69b600a4c0b6 https://www.govinfo.gov/content/pkg/GOVPUB-C13-4b981c2141db955c8a3b69b600a4c0b6/pdf/GOVPUB-C13-4b981c2141db955c8a3b69b600a4c0b6.pdf Supplement #1 to NBS Report 6001 Radio waves Tropospheric radio wave propagation Nupen, Wilhelm. creator Nupen, Wilhelm. National Bureau of Standards (U.S.) National Institute of Standards and Technology (U.S.) mdu U.S. Dept. of Commerce, National Bureau of Standards 1959-07-28. monographic 1 online resource : text technical report eng Wilhelm Nupen. July 1959. Title from PDF title page (viewed September 24, 2019). Includes bibliographical references. Mode of access: World Wide Web. Systems requirements: Adobe Acrobat PDF reader. Tropospheric radio wave propagation Radio waves https://doi.org/10.6028/NBS.RPT.6065 supplement #1 to NBS report 6001 supplement #1 to NBS report 6001