Investigation of Variability of Tropospheric Radio Refractivity and Field Strength over Gusau Town, Zamfara State, Nigeria

Ibrahim Lugga Abubakar

Abstract


This study investigates the variability of tropospheric radio refractivity and examines how these variations impact radio field strength over Gusau town, Zamfara state. The measurement of tropospheric parameters was made using a Davis Wireless Vantage Pro2 Weather Station, which was installed on the ground surface under study. The study utilized data measurement for six (6) months (from January 2025 to June 2025). The variable was computed using the Recommendation of the International Telecommunication Union (ITU-R Model). Also, regression analysis was carried out to ascertain the degree of influence of surface refractivity and field strength variability. The result shows that the average value of radio refractivity showed seasonal variations with high values during the early rainy season and with an increase in the value of radio refractivity from 295N to a maximum value of 356N units. Therefore, the researcher recommended that the study serve as an important parameter in determining the coverage and quality of tropospheric refractivity and field strength variability in Gusau Town of Zamfara State, Nigeria.


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References


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