The successful operation of a telecommunication system depends mainly on a previous and suitable planning and dimensioning (PD however, its implementation has not been fully discussed in literature for regular broadcasting systems and even less for DTT. In this paper, the performance of above-mentioned model, for predicting propagation losses on DTT systems in the cities of Caracas (Venezuela) and Belem (Brazil), is evaluated by comparing model estimation results with field measurements realized in both localities. The performance is also compared with other propagation models by means of Mean Square Error (MSE). Results have shown that best results are obtained for the Caracas city.