Abstract:

This research work examines the effects of variation in temperature on signal reception of Direct broadcasting satellite (DBS) on Ku-Band in some selected towns in North central states, Nigeria. Data used were obtained through experimental approach of recording both temperature and the quality of signal received from direct-to-home (DTH) satellite system at 12.517 GHz, for regular interval of one hour for whole year covering two climatic conditions in 2018. Daily and monthly mean values used were evaluated from the data obtained in the field. The result showed a consistence in the values of temperature across the states under study largely to the fact they lie within same coordinates. All the towns experience gradual increase in temperature value as the hours of the day progresses and declined again as night falls, due the absence of solar energy radiation at night. While this was observed, the quality of signal reception reduces from its highest value in January to its lowest value in month of August. The result showed that the states have temperature values of 38oC and 18oC as high and low values respectively. The averaged value for the whole states showed a weak negative correlation coefficient value of -0.298 and coefficient of determination (R2) value of 0.077 when fitted into linear regression between temperature and the quality of signal reception within the study area, which shows that the signal quality reception is reduced by about 0.08% with 1oC rise in temperature.