Technical aspects of fast magic-angle turning NMR for dilute spin-1/2 nuclei with broad spectra

► Simulation and compensation of off-resonance effects, for large bandwidth (∼1.8γB1). ► Minimization of the duration of z-periods by cyclic decrementation. ► Shearing without digitization artifacts, by sharing between channels (points). ► Echo-matched Gaussian filtering to improve signal-to-noise ratio. ► 125Te NMR of GeTe, Sb2Te3, and Ag0.53Pb18Sb1.2Te20, determination of anisotropies.