Using TSAR with the post-processing far-field option

The TSAR EM code has contained far-field projection algorithms for some time. One drawback to previous versions of TSAR has been the necessity to run the field advancement routines each and every time to generate far-field data. A change has been made to TSAR to allow tangential fields on the projection surface to be saved to a file. These fields can then be used with a new postprocessor, POSTFAR, to produce far-field points at any desired location without rerunning the field advancement portion of TSAR. This will save large amounts of time in producing far-field calculations and allow calculation of other test point locations. If the tangential field data is saved to an 8 mm tape, these calculations may be made at a much later date.