## Folding Frequency Switched Spectra

Spectra obtained by Frequency Switching need to be folded to obtain the source spectra. It is usually a good idea to remove a baseline before the spectra are folded in order to use as much baseline as possible. The folding is done by command FOLD which reads from the corresponding section all the necessary parameters. FOLD only operates on the R buffer. The number of channels is decreased to keep only the relevant part of the resulting spectrum.