The specificities and the performances of the Fourier transform spectr
ometer (FTS) located in Reims is described. Particular attention is fo
cused on the automatic servo control and monitoring of this apparatus.
Ozone spectra are used to illustrate the performance of the machine i
n the 5 mu m range, including reduction of data with fits on line shap
es, and excerpts of results concerning line positions, intensities, wi
dths and shifts are given.