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A mixed-path groundwave field-strength prediction virtual tool for digital radio broadcast systems in medium and short wave bands

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1 Author(s)
Sevgi, L. ; Dept. of Electron. & Commun. Eng., Dogus Univ., Istanbul

The emerging digital technologies for the communication bands from LF up to VHF - bands traditionally used by analog radio systems - necessitate revisiting early analytical propagation methods, and urge engineers to develop novel propagation prediction tools. Existing analytical propagation techniques are based on ray-mode approaches and the Millington curve-fitting approach for mixed-path propagation. These have been endorsed and are used in related ITU (formerly, CCIR) recommendations. These techniques are discussed, with characteristic examples produced via a newly introduced MF/HF groundwave propagation prediction virtual tool (GPVT)

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Antennas and Propagation Magazine, IEEE  (Volume:48 ,  Issue: 4 )