Propagation at 412 Megacycles from a High-Power Transmitter
- 1 November 1951
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IRE
- Vol. 39 (11), 1374-1382
- https://doi.org/10.1109/jrproc.1951.273598
Abstract
Extended measurements are reported which indicate the existence of pronounced nocturnal superrefraction during an appreciable percentage of the summer and of very persistent scattering by atmospheric turbulence near the surface in all seasons. The measurements were taken over rolling midwestern terrain at a distance of about 100 miles. Mobile road tests were made to supplement the fixed-point measurements and to provide an approximate indication of the relation between field strength and distance. Aerial tests were made to show the effects of antenna height at large distance. Graphs are provided which show the effects of distance, terrain, antenna height, and time upon the field strength. The practical significance of the results in the broadcast and commmunication fields is indicated.Keywords
This publication has 17 references indexed in Scilit:
- Notes on the Analysis of Radio-Propagation DataProceedings of the IRE, 1951
- A Theory of Radio Scattering in the TroposphereProceedings of the IRE, 1950
- Propagation of Short Radio Waves over Desert TerrainProceedings of the IRE, 1950
- An Analysis of Distortion Resulting from Two-Path PropagationProceedings of the IRE, 1949
- TOXICITY OF SELECTED ORGANIC COMPOUNDS TO INSECTS: PART I. TESTS FOR GENERAL TOXICITY ON LARVAE OF MUSCA, TRIBOLIUM, AND EPHESTIA, AND ADULTS OF SITOPHILUSCanadian Journal of Research, 1948
- Propagation Studies on 45.1, 474, and 2800 Megacycles within and beyond the HorizonProceedings of the IRE, 1947
- Wave Theoretical Interpretation of Propagation of 10-Centimeter and 3-Centimeter Waves in Low-Level Ocean DuctsProceedings of the IRE, 1947
- Field Intensities beyond Line of Sight at 45.5 and 91 MegacyclesProceedings of the IRE, 1947
- Further Results of a Study of Ultra-Short-Wave Transmission Phenomena*Bell System Technical Journal, 1935
- Ultra-Short-Wave PropagationProceedings of the IRE, 1933