In order to ensure that the observations for our oscillation project are obtained as homogeneously as possible we describe below the suggested observing strategy to use on NGC 6397. This document also provides coordinates and finding charts for the primary field, as well as for fields suitable for photometric calibration. Other than the dedicated time series observations we will also need to aquire some V and I photometry in order to be able to construct a good color-magnitude diagram for the cluster. This will be useful for deriving temperatures of the stars under study (both giants and other variables).