Title :
Statistical results from radio signal strength Measurement Campaign over two over-sea paths in Channel Islands, UK
Author :
Mufti, Naveed ; Siddle, David ; Warrington, Mike
Author_Institution :
Dept. of Telecom Eng., Univ. of Eng. & Technol. Peshawar, Mardan, Pakistan
Abstract :
Previous studies on anomalous, over-sea propagation have been either focused on single links employing space/antenna diversity or on point-to-multipoint links, usually involving single frequency. Measurements on two co-linear, trans-horizon paths (50km and 140 km long) over the English Channel have been made over periods in excess of a year in order to investigate the propagation characteristics of VHF and UHF signals propagating over the sea. The setup comprises a transmitter located on Jersey and receivers on Alderney and Portland. Signal strength enhancements have been observed on both paths, occurring for different percentages of time between 12% and 19%. UHF signals show greater magnitude of signal level enhancement and longer link shows greater degree of signal level enhancement.
Keywords :
UHF radio propagation; VHF radio propagation; radio links; statistical distributions; English Channel; UHF signal propagation; VHF signal propagation; antenna diversity; colinear path; distance 140 km; distance 50 km; over sea propagation; point-to-multipoint links; radio signal strength measurement; transhorizon path; Atmospheric modeling; Earth; Propagation losses; Radio transmitters; Receivers; Sea measurements; Terrestrial atmosphere; Anomalous Propagation; Enhancements; Over-sea; Trans-Horizon;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
