1. An emitter locator system, comprising: a mobile DF set, said set comprising a receiver for receiving incident signal transmissions; a line of bearing generating system in operative communication with said receiver and configured to generate lines of bearing responsive to said received signal transmissions; an LOB error generating system in operative communication with said line of bearing generating system and configured to generate error factors related to said lines of bearing; an probability overlay generating system in operative communication with said LOB error generating system and configured to generate an overlay probability map responsive to said error factors; and display means for visually displaying said lines of bearing, said error factors and said overlay map.