High-resolution H-1 spectroscopy in solid-state NMR, rendered difficult due to the strong H-1-H-1 homonuclear dipolar coupling, has been made possible under magic-angle spinning with homonuclear dipolar decoupling schemes, such as windowed phase-modulated Lee-Goldburg. Here, we outline the theory and implementation of a modification of this scheme with which an effective z-rotation for the magnetisation is obtained over a wide range of spectral window. Experimental results are presented for samples, such as glycine, histidine, and tryosine. (C) 2007 Elsevier B.V. All rights reserved.