Institute for Telecommunication Sciences
the research laboratory of the National Telecommunications and Information Administration

R. H. Ott; Kenneth C. Allen; E. J. Violette; Richard H. Espeland; M. C. Thompson Jr.; A. R. Mitz

Abstract: An experimental study of atmospheric multipath on a 23 km link at 9.6 and 28.8 GHz near Boulder, Colorado, is described. The preliminary observations were made for three days in July 1979 when a strong inversion layer was present, creating an elevated tropospheric duct. The possible influence of antenna aperture size on atmospheric multipath was investigated by observing fades and enhancements on the 28.8 GHz carrier using a 10° horn and a 1.2° parabolic dish. Continuous height-gain observations were obtained using the 300 m. tower at Erie, Colorado, as one end of the link. Meteorological data at the tower were also recorded during observation periods of the radio signal.

Keywords: fading; atmospheric multipath; micromillimeter wave; millimeter wave; refractivity structure


To request a reprint of this report, contact:

Lilli Segre, Publications Officer
Institute for Telecommunication Sciences
(303) 497-3572
lsegre@ntia.doc.gov


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.

Back to Search Results