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<td> [[Image:TER L6 Map1.png|thumb|left|720px|The received power coverage map of the plateau terrain scene with the transmitter base at X = Y = 100m and Z = 10m.]] </td>
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</table>
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Now open the simulation run dialog and click the {{key|Settings}} button next to the simulation engine type drop-down list. This opens up [[EM.Terrano]]'s Ray Tracing Engine Settings dialog. Uncheck "Include edge diffraction" checkbox and a new SBR analysis. You will see that there is no reception behind the buildings.
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<table>
<tr>
<td> [[Image:TER L6 Map1.png|thumb|left|480px|EM.Terrano's Run Simulation Dialog..]] </td>
</tr>
<tr>
<td> [[Image:TER L6 Map1.png|thumb|left|600px|EM.Terrano's Ray Tracing Engine Settings dialog.]] </td>
</tr>
<tr>
<td> [[Image:TER L6 Map1.png|thumb|left|720px|The received power coverage map of the plateau terrain scene with the transmitter base at X = Y = 100m and Z = 10m without edge diffraction.]] </td>
</tr>
</table>