Phase histograms of the visibilities of scan 1362 (observed at 10:50 UT), of the source 0059+581, for a selection of baselines, after the Global Fringe Fitting calibration. Solid lines, using our WBGFF algorithm implemented in PyPhases; dotted lines, using the implementation in CASA (see text). In the boxes, we show the absolute value of the mean (|μ|) in deg. and the standard deviation (σ) in deg. for each distribution.