The electric field strength values of the transmitters of the Ondo State Radiovision Corporation (OSRC), Akure (CH 23, 487.25 MHz); OSRC, Oka Akoko,(CH 25, 503.25 MHz); and OSRC, Okitipupa,(CH 27, 519.25 MHz); were measured radially along several routes with the transmitting stations as references using a digital signal level meter. A hand held Global Positioning System (GPS) receiver was used for determining the geographic coordinates as well as the line of sight of the various data points from the base stations. Data were taken across the eighteen Local Government Areas of the State as far as road accessibility permits using a field vehicle with the receiving antenna attached. Data obtained were used to determine and classify the various grades of coverage as well as the towns and villages within the coverage zones. Surfer 8 software was used to generate the contour maps of the electric field strength of the signals over the Landmass. Coverage areas of 50.5%, 9.0% and 8.0% were determined for UHF Channels23, 25 and 27 respectively. The combined coverage areas for the three stations was 67.5% with 17.5% within the primary, 34.5% within the secondary and 15.5% within the fringe coverage areas, whereas 32.5% of the land mass was not serviced by any of the stations. The overall result of this research showed that the present configurations of the transmitters gave a significant coverage of the state. However, the stations need to upgrade their transmitting equipment to enhance optimum coverage and by extension the socio-economic activities of the people.