I agree with the answer of Hatem and Jeffrey. Please give more infos about your sample and the typ of NMR-spectrometer and what you mean with oriented samples (e.g. anorganic crystals or liquid crystals, biochemical crystals a.s.o...).
A GOOD FORMULATED QUESTION helps always the answerers to give a precise and good answer!
Please read :
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Introduction to Solid-State NMR - A tutorial by Rob Schurko from the University of Windsor
RCN - Research Coordination Network NMR of Biological Solids