This plot illustrates some unexpected observations from the plot of signal amplitude versus direction. The radial plotted value is the inverse of amplitude, e.g, the large signals at the center axis and smallest signal on the outer circumference. It should be noted that the frontal activity from the southeast (broadside view from the monitor location) shows a definite amplitude relationship to the location along the front. Conversely, the southwestern activity (inline frontal view) shows a similiar amplitude range but without the frontal relationship. Activity polarity is indicated by red and green plots (positive and negative, respectively).
The self-expanding file demo_wx.exe can be downloaded which contains the preliminary documention of this version including the demo data as illustrated.