Signal Strength Analysis of an FM Radio Station’s Test Transmission

The aim of this research work was to assess the signal strength variation of an FM radio station on 99.3 MHz frequency during a test transmission in Abuja, Nigeria. The signal strength was measured in a location in Abuja Municipal Area Council AMAC from Monday to Friday, 7 0 AM – 7 00 PM. The one week data was averaged, and the analysis performed using graphical and tabular representations. The result indicates a highly stable transmission throughout the observation period. The recorded values ranged between 47.34 dBµV and 47.73 dBµV, showing a minimal variation of less than 0.40 dBµV. This consistency demonstrates strong broadcast reliability with negligible fading or interference. The result also shows that the signal exhibited a slight midday decline, likely due to increased urban electromagnetic activity and atmospheric heating, followed by stabilization and a gradual evening rise as conditions became more favourable. From the results, it was concluded that the transmission system performed efficiently and maintained stable signal levels throughout the study period of five days. It was recommended that similar test be carried out in other parts of Abuja to determine the signal reception quality and behaviours in those areas. This result will be valuable to the radio station, and other researchers in the radio communication fields. Dr. Haruna Mohammed S | Dr. Yusuf Olatunbosun T | Dr. Ayegba Abdullahi | Engr. Nyabam Mopa Ashem "Signal Strength Analysis of an FM Radio Station's Test Transmission" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-9 | Issue-6 , December 2025, URL: https://www.ijtsrd.com/papers/ijtsrd98791.pdf Paper URL: https://www.ijtsrd.com/other-scientific-research-area/other/98791/signal-strength-analysis-of-an-fm-radio-station's-test-transmission/dr-haruna-mohammed-s