A technique for the observation of radar echoes from stratospheric and mesospheric heights has been developed at the Jicamarca Radio Observatory. Signals are detected at the altitude ranges between 10-35 km and from 55-85 km with powers from many to several tens of decibels above noise level. The three most important frequency spectrum characteristics - power, Doppler shift and spectrum width - are observed in real time. The power levels as well as the spectral width are explained in terms of turbulent layers, with a thickness of the order of 100 m, in regions with a positive potential temperature or electron density vertical gradients. Continuous wind velocity records are obtained with a precision of the order of 0. 02-0. 2 m sec** minus **1 for the vertical component and 0. 20-2 m sec** minus **1 for the horizontal, with a time resolution of the order of 1 min. The highest precisions are obtained at stratospheric heights. Fluctuations in velocity in the mesophere are observed at the shortest gravity wave periods with amplitudes of the order of 1 m sec** minus **1 for the vertical component and of 10 m sec** minus **1 for the horizontal. Tidal components at these altitudes are not as large as predicted by theory. A technique to obtain the power, the Doppler shift, and the width of the frequency spectrum of the echo signals from only two points of the correlation function is described.