Title :
The extraordinary wave mode: Neglected in current practical literature for HF NVIS communications
Author_Institution :
Plextek Ltd., London
Abstract :
Current practical literature for HF NVIS communication places significant emphasis on foF2 as being the maximum frequency for vertical propagation. This, however, fails to consider the extraordinary wave. This paper presents the analysis of 5 MHz beacon data, showing the relevance of the extraordinary wave in the MUF calculation for NVIS propagation. The results are in full agreement with established scientific theory and ionospheric propagation prediction methods, the detail of which the HF NVIS user community may not be aware of.
Keywords :
HF radio propagation; ionospheric electromagnetic wave propagation; radiocommunication; HF NVIS communication; extraordinary wave mode; frequency 5 MHz; ionospheric propagation prediction method; near-vertical incidence skywave propagation; vertical propagation; Extraordinary wave; HF NVIS communications;
Conference_Titel :
Ionospheric radio Systems and Techniques, 2009. (IRST 2009). The Institution of Engineering and Technology 11th International Conference on
Conference_Location :
Edinburgh
Print_ISBN :
978-1-84919-123-4
