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 '''Base LocationsPoint 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 Base 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 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.

<td> [[Image:Terrano L1 Fig8.png|thumb|left|480px|Defining a base location point radiator group in EM.Terrano's navigation tree.]] </td>

<td> [[Image:Terrano L1 Fig4.png|thumb|left|480px|The Base Point Radiators Set dialog.]] </td>

Now, define a second base location point radiator set called "BasePointSet_2", and choose an orange color for itbut keep the radiator type as vertically (Z-directed) polarized half-wave dipole. With the new point set group active, draw a point at the location (25m, 0, 2m) just like you did earlier. Next, you will build an array of points using the second orange point object you just created. Click on the point to select it. Its color turns yellow (i.e. the default selection color). Click the {{key|Array}} [[File:Array tool tn.png]] button of the Tools Toolbar or right-click on the object and select '''Array''' from the contextual menu, or simply use the keyboard shortcut {{key|A}}. The Array Dialog opens up. Enter 10, 1 and 1 for the <b>Element Count</b> along the X, Y and Z directions, respectively. Enter 5m, 0 and 0 for <b>Spacing</b> along the three axes, respectively. Click {{key|OK}} to accept the settings and close the Array dialog.

<td> [[Image:Terrano_L1_Fig4b.png|thumb|left|600px|Changing the color of the base location point radiator in the Base Point Radiators Set dialog.]] </td>

Right-click on the '''TransmitterSet_1''' item in the navigation tree and select '''Properties...''' from the contextual menu. Examine the properties of the transmitter set. In the '''Radiator''' section under "Transmitter Properties" of the transmitter dialog, note that the default radiator type of the transmitter is vertical (Z-directed) '''Half-Wave Dipole'''. Similarly, right-click on the '''ReceiverSet_1''' item items in the navigation tree and select '''Properties...''' from the contextual menu. Examine and examine the properties of the receiver transmitter set. In the '''Radiator''' section of the receiver dialog, note that the default radiator type of the receiver is vertical (Z-directed) '''Half-Wave Dipole'''.

<td> [[Image:Terrano L1 Fig20A.png|thumb|left|480px600px|Selecting receiver No. 1 in the receiver set dialog.]] </td></tr><tr><td> [[Image:Terrano L1 Fig20B.png|thumb|left|480px600px|Selecting receiver No. 10 in the receiver set dialog.]] </td>