ABSTRACT
This research was undertaken to investigate diurnal and seasonal variation of Medium Wave in Zaria. The effect of the seasons on signal strength and consequently of harmattan was examined. The more common analysis of evaluating several medians was used. Medians were evaluated for periods of one hour, one day, one month, one season and for the whole period of measurement. The hourly medians were evaluated on a daily and monthly basis. Some problems common to Medium Wave broadcasting in Nigeria in particular were enumerated and suggestions made on how to overcome them. A comparison was made between theoretical distributions and the probability distribution of the received signal. All the results were obtained from the Computer and put in graph form from which some conclusions were arrived at.