Changes

You need to create two sets of point objects to represent base locations for your transmitter and receivers. But first you have to define a base point group in the navigation tree. Right-click on the '''Point Radiators''' item under the “Physical Structure” section of the navigation tree and select '''Insert New Point Set…''' from the contextual menu. This opens up the Point Radiator Set Dialog. You can change the name of the point set or its color from this dialog. Accept the default settings (blue color) and and the transmitter as vertically (Z-directed) polarized half-wave dipole antenna, and then click the {{key|OK}} button to close the dialog. You will notice that the name "BasePointSet_1" in the navigation tree is now displayed in bold letters. This means that this group is the active group in the project workspace. Any object you draw will belong to this group. Also, note that when a base point group is active in the navigation tree, all the buttons of the Object Toolbar are grayed out except for the Point Tool.