... Therefore, we have to unwrap the calibrator phase data first. Use the "All in 1" option to replot this data into one graph, and then use Calibrate|Visibility|Triple|ManualUnwrap to define a window around the group of data points which you want wrapped to the other side. ... Warning(CALCOEFFS): no valid data points found! ... Solution calculated for TR= 1, Ch= 4. RMS [d] = 3.413) . ... RMS [d] = 3.812) . ... RMS [d] = 4.045) . ... RMS [d] = 3.811) . ... RMS [d] = 3.962) . ... RMS [d] = 3.886) . ...