Author:
Publisher:
ISBN:
Category : Radio wave propagation
Languages : en
Pages : 140
Book Description
Measurements and Predictions of HF Ground Wave Radio Propagation Over Irregular, Inhomogeneous Terrain
Author:
Publisher:
ISBN:
Category : Radio wave propagation
Languages : en
Pages : 140
Book Description
Publisher:
ISBN:
Category : Radio wave propagation
Languages : en
Pages : 140
Book Description
Measurements and Predictions of HF Ground Wave Radio Propagation Over Irregular, Inhomogeneous Terrain
Author:
Publisher:
ISBN:
Category : Radio wave propagation
Languages : en
Pages : 140
Book Description
Publisher:
ISBN:
Category : Radio wave propagation
Languages : en
Pages : 140
Book Description
Ground Wave Propagation Over Irregular, Inhomogeneous Terrain
Author: R. H. Ott
Publisher:
ISBN:
Category : Radio wave propagation
Languages : en
Pages : 146
Book Description
Publisher:
ISBN:
Category : Radio wave propagation
Languages : en
Pages : 146
Book Description
A New Method for Predicting HF Ground Wave Attenuation Over Inhomogeneous, Irregular Terrain
Author: R. H. Ott
Publisher:
ISBN:
Category : Radio waves
Languages : en
Pages : 68
Book Description
Publisher:
ISBN:
Category : Radio waves
Languages : en
Pages : 68
Book Description
Prediction of Ground-wave Radio Propagation Over Irregular Inhomogeneous Terrain
Author: James Smith Finnie
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Measurements of LF and MF Radio Propagation Over Irregular, Inhomogeneous Terrain
Author: William A. Kissick
Publisher:
ISBN:
Category : Radio wave propagation
Languages : en
Pages : 188
Book Description
Publisher:
ISBN:
Category : Radio wave propagation
Languages : en
Pages : 188
Book Description
Ground Wave Propagation Over Irregular Inhomogeneous Terrain
Author: R. H. Ott
Publisher:
ISBN:
Category :
Languages : en
Pages : 137
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 137
Book Description
HF Ground Wave Propagation Over Smooth and Irregular Terrain
Author: Gordon J. Fulks
Publisher:
ISBN:
Category :
Languages : en
Pages : 66
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).
Publisher:
ISBN:
Category :
Languages : en
Pages : 66
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).
A New Method for Predicting HF Ground Wave Attenuation Over Inhomogeneous, Irregular Terrain
Author: R. H. Ott
Publisher:
ISBN:
Category : Radio waves
Languages : en
Pages : 68
Book Description
Publisher:
ISBN:
Category : Radio waves
Languages : en
Pages : 68
Book Description
Publications Abstracts
Author: United States. National Telecommunications and Information Administration
Publisher:
ISBN:
Category : Telecommunication
Languages : en
Pages : 40
Book Description
Publisher:
ISBN:
Category : Telecommunication
Languages : en
Pages : 40
Book Description