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<td> [[Image:prop_txrx1_tnPROP MAN8.png|thumb|360pxleft|Transmitter 640px|A transmitter (red) and a grid of receivers (yellow) adjusted above an uneven a plateau terrain surface.]] </td><td> [[Image:prop_txrx2_tn.png|thumb|360px|The underlying base point sets (blue and orange dots) associated with the adjusted transmitters and receivers on the terrainare also visible in the figure.]] </td>
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