WR Card
The WR card is used to define a dielectric windscreen reference plane. Geometrically this surface is not part of the electromagnetic model and is used simply to determine the curvature factor between the two elements on the windscreen.
On the Solve/Run tab, in the Windscreen
group, click the Windscreen reference (WR) icon.

Figure 1. The WR - Define windscreen reference dialog.
Parameters:
- Windscreen name
- The name of the windscreen.
- Use as reference all surfaces with label
- The start of the label range.
- (optionally) up to label
- [Optional] The end of the label range.