Increasing the Signal-to-Noise Ratio in Solid State Wideline 2H Spectra

At low magnetic field strengths where chemical shielding anisotropy is not a problem, the wide line 2H spectra of solids produce symmetrical spectra. One can increase the signal-to-noise ratio in these spectra by a factor of the square root of two by reversing the spectrum and adding it to itself as illustrated below for the 2H spectrum of perdeuterated poly-methyl methacrylate.