If sampling the data to the end of the decay results in too few data points for good peak definition, subsequent post-acquisition zero-filling of the time-domain data (TD) is also critically important for producing proper digital definition of the spectrum. This is especially true for HNMR data where the extraction of accurate locations of peak and line frequencies as well as of frequency differences are essential for data interpretation. For practical considerations, it shall be noted that setting AQ is the most direct way to determine the digital resolution of the acquired, raw NMR data. Unlike the number of data points used to acquire the FID (TD) does not have to be a multiple of 2 to be amenable to FT.