var fDesc=new Array();
fDesc[0] = "RDF Calculator for radio-direction finding, topographic map display, locator calculation, graphic display of the intersection area of two beams, and display of a &#039;live&#039; map for Spectrum Lab&#039;s RDF mode. <br /> <br /> The RDF Calculator was primarily written for radio-direction finding. It can be used to calculate and visualize the intersection from the beam heading of two observers to find the location of an unknown transmitter.";

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