An analytic study for the effect of antenna height on line-of-sight VHF/UHF communications coverage distance applied to Baghdad city
DOI:
https://doi.org/10.21533/pen.v7.i4.1799Abstract
A radio system conveys information from transmitter to the receiver. The information can be sent by any antenna that transforms the RF signal electromagnetically through free space medium for electromagnetic wave propagation. Long-distance data communication has been higher in effect through wireless networks. Generally, VHF and UHF radio frequencies are termed as line-of-sight (LOS). In point of fact, the considered horizon for visual LOS is not identical as the horizon for radio wave propagation because of geographic obstacles and the earth curvature limits LOS transmission. This research provides an overview, study, analysis, and implementing simulations with single-antenna and two-antenna systems using MATLAB programming language based on antenna height effect on determining the distance range that can be expected in a radio link. Also, the effects of weather and earth terrain changes effects on coverage distance are also taken in consideration. Baghdad city is considered as the place where the research ideas are applied.
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