Abstract
We describe two novel methods of FID data handling and data collection developed to assist in overcoming dynamic range problems encountered in Fourier transform NMR experiments. Both methods are aimed at reducing the size of the FID after collection by removing information relating to the large signal while retaining information from the small signals. These methods arrange for the dominant sine wave in the FID to be removed by adding an FID displaced by half its wavelength to the original unshifted FID. The small signals which result from these manipulations allow computers with limited word lengths to store FID data for more transients before scaling down is necessary.
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