The beam combination for each baseline produces two outputs which are measured by a fringe tracker. One output is generally wide-band (WB), either a single pixel or several pixels combined and is used to track the fringe. This output is sometimes referred to as the ``white light'' channel. The second output is dispersed and directed to an array of pixels, which are referred to as the spectrometer channels. Visibilities are calculated for the wide-band pixel, the summation of the spectrometer channels and for individual spectrometer channels. In the channel numbering used by Kvis the wide-band pixel numbering starts at 0 and the spectrometer channels numbering starts at the number of wide-band channels. For more information on the data flow at KI see http://msc.caltech.edu/KISupport/dataOverview.html.