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<br />.s-1!;i-1996 9,1:3AM <br /> <br />FROt-'-"IAVETECH 1NC 504 926 21'26 <br /> <br />p.6 <br /> <br />5 <br /> <br />The survey is perfOrmed along a preselected system of perpendieular or . <br />patallel transect lines. The conftguration of the t{8nsect lines is designed based on <br />the geometry and size of the target and the dimensions of the site. The beginning <br />and ending pOints of the transect I~ and grid intersection points, or nodes, are <br />marked on the ground with spray p~im or survey flags. A grid system is used to <br />increase the probability of crossingt~~l'shortaxis. of a target providing a more <br />definitive signature in the data.. Theloestion o~ the antennae along a transect line is <br />electronically marked on the cross sectio'n at each grid intersection point to allow <br />correlation of the data to actual ground locations. The location of the targets can be <br />marked on the ground surface using spray paint ,)r survey flags. <br /> <br />. For this project, a SIR System 3 with a 40(1 megahertz (MHz) antennae <br />manufactured by Geophysical Survey Systems, Inc. was used. This system 'and <br />antennae configuration has an optimal depth of penetration of 0 to 30 feet. The <br />equipment was set to record a time window of 50 nanoseconds (corresponding to <br />approximately 10 feet). <br /> <br />II <br /> <br />lUaueTech <br /> <br />JU'l lS ''38 10: 1? <br /> <br />-.....--.. -....-.. <br /> <br />** TOTAl--PAGE.0? ** <br />