Abstract;
This study explores the coverage areas of VHF and UHF signals from two television stations in Ekiti State, Nigeria, through quantitative measurements of the electric field strength. The signal levels of Nigeria Television Authority (NTA), Ado Ekiti, Channel 5 (175.25 MHz), and Broadcasting Service of Ekiti State (BSES), Channel 41 (631.25 MHz) transmitters were measured radially along various routes with the transmitting stations as the focal point. The distances from the transmitting stations and corresponding locations were recorded. These measurements were conducted using a Digital Signal Level Metre, GE-5499, with a signal level range of 30 dBµV – 120 dBµV, and a Global Positioning System (GPS) 72 – Personal Navigator.
The data obtained were utilized to generate contour maps of the signal levels around the transmitting stations using Surfer 13 software application. The results indicate that the current configurations of the transmitters for both television stations do not provide optimal coverage of the state. Only 64.89% of the entire land mass in Ekiti State receives television signal coverage, leaving some areas completely without television signal reception. Therefore, there is a necessity to establish repeater stations at specific intervals to ensure television signal reception throughout the state.
Additionally, this research adapted various field strength models suitable for Ekiti State, Nigeria, including free space, Hata, ITU-R P.529-3, and ERC Report 68 models. The results reveal that the generalized free space model offers a more accurate prediction for the field strength of the two television stations in Ekiti State. For the VHF signal (NTA Ado Ekiti), the model yields a correction factor of -37.84 and a Root Mean Square Error (RMSE) of 6.28 dBµV/m. For the UHF signal (BSES, Ekiti), the correction factor is -25.48, and the RMSE is 6.21 dBµV/m.
Adapting Empirical Electric Field Strength Models for Terrestrial Television Broadcast in Ekiti State, Nigeria.  GET MORE, ACTUARIAL SCIENCE PROJECT TOPICS AND MATERIALS
