United States Government Publishing Office publisher pbl distributor dst United States Commerce Department National Institute of Standards and Technology (NIST) author aut Government Organization Barsis, A. P. author aut text government publication eng GOVPUB Executive Agency Publications executive 2020-07-13 Commerce Department 1953-05-01 monographic deposited born digital 144 digital object pages C 13. https://www.govinfo.gov/app/details/GOVPUB-C13-adb21186bc164fa638a25b62fa157d47 P0b002ee1a768028d on1132808554 (OCoLC)1132808554 DGPO 2020-07-13 2026-07-04 GOVPUB-C13-adb21186bc164fa638a25b62fa157d47 machine generated eng fdlp C13 GOVPUB-C13-adb21186bc164fa638a25b62fa157d47 adb21186bc164fa638a25b62fa157d47 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. 1953 1953-05-01 https://www.govinfo.gov/app/details/GOVPUB-C13-adb21186bc164fa638a25b62fa157d47 https://www.govinfo.gov/content/pkg/GOVPUB-C13-adb21186bc164fa638a25b62fa157d47/pdf/GOVPUB-C13-adb21186bc164fa638a25b62fa157d47.pdf Report for the Air Navigation Development Board Radio wave propagation United States. Air Navigation Development Board. (make into 610) Barsis, A. P. creator Barsis, A. P. Bean, B. R. Herbstreit, J. W. Hornberg, K. O. Norton, K. A. National Bureau of Standards (U.S.) National Institute of Standards and Technology (U.S.) mdu U.S. Dept. of Commerce, National Bureau of Standards 1953-05-01. monographic 1 online resource : text technical report eng The purpose of this report is to present the experimental data on 1046 Mc obtained at the Cheyenne Mountain Field Station for the period February 1, 1952 through January 31, 1953. Continuous recordings were not made prior to this period and consequently any previous data are not considered. In addition, this report includes the analysis of diurnal and seasonal variations in hourly median signal levels, the analysis of variations in instantaneous signal levels and the analysis of prolonged space-wave fade-outs within the radio horizon for the period investigated, an analysis of the effects of irregular terrain at points within the radio horizon, an analysis of the scattered signals at points far beyond the radio horizon, including estimates of the expected effective gains of large antenna arrays, the required spacing for diversity arrays and the effective intelligence bearing bandwidths of the propagation paths. Finally, as a result of a recent investigation of propagation over high mountain ridges, an analysis is presented of the obstacle gains expected on 1000 Mc in mountainous terrain. A. P. Barsis; B. R. Bean; J. W. Herbstreit; K. O. Hornberg; K. A. Norton. May 1953. Title from PDF title page (viewed September 24, 2019). Includes bibliographical references. Mode of access: World Wide Web. Systems requirements: Adobe Acrobat PDF reader. Radio wave propagation United States. Air Navigation Development Board. (make into 610) https://doi.org/10.6028/NBS.RPT.2494 report for the Air Navigation Development Board report for the Air Navigation Development Board