Ground Wave Propagation Over Irregular, Inhomogeneous Terrain PDF Download
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Author: R. H. Ott
Publisher:
ISBN:
Category : Radio wave propagation
Languages : en
Pages : 146
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Book Description
Author: R. H. Ott
Publisher:
ISBN:
Category : Radio wave propagation
Languages : en
Pages : 146
Get Book Here
Book Description
Author: R. H. Ott
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: R. H. Ott
Publisher:
ISBN:
Category :
Languages : en
Pages : 137
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Author: R. H. Ott
Publisher:
ISBN:
Category : Radio waves
Languages : en
Pages : 68
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Author: Gordon J. Fulks
Publisher:
ISBN:
Category :
Languages : en
Pages : 66
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Book Description
This report addresses several aspects of ground wave propagation. Included are discussions of the general characteristics of ground waves as well as specific formulas for predicting ground wave field strengths at arbitrary locations from a standard transmitter. These formulas, from the work of Bremmer, apply to either vertical or horizontal polarization, to a smooth spherical earth, and to a wide variety of soil types. A computer program to evaluate the formulas is presented and sample results are given. Although this report concentrates on HF frequencies, many of the results are applicable to a much wider range of frequencies. Atmospheric refraction, which may enhance ground wave propagation, is discussed. Formulas for predicting refraction effects based on atmospheric temperature and humidity as well as temperature and humidity gradients are presented. Propagation over inhomogeneous and irregular terrain is considered. Only limited aspects of such propagation are discussed with an emphasis on irregular terrain. Obstacle gain is covered in some detail. Because of the lack of experimental data for ground wave propagation over irregular terrain at HF frequencies, an experiment is recommended. (Author).
Author:
Publisher:
ISBN:
Category : Radio wave propagation
Languages : en
Pages : 140
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Author:
Publisher:
ISBN:
Category : Radio wave propagation
Languages : en
Pages : 140
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Author: James Smith Finnie
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Category :
Languages : en
Pages :
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Author: J. Ralph Johler
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ISBN:
Category : Loran
Languages : en
Pages : 84
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Author: J. Ralph Johler
Publisher:
ISBN:
Category : Loran
Languages : en
Pages : 64
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