About 1000 daily radar experiments have been made of the Sun at El Campo, Texas, since April, 1961. This paper presents some of the results of these experiments. The average intensity, mean range, and range depth of the solar echo have been found to vary with sunspot number, but correlations of these parameters on a daily basis are low. The radar signal is reflected from coronal irregularities that are moving at velocities up to 200 km/s. At times there is an increase in the echo intensity, and when this happens there are often high-corona irregularities moving at about 20 km/s. Some possible reasons for these effects are discussed.