Using S-Calc on your Pocket PC you will be able to transform and rotate co-ordinate systems from one base to another, instantly perform setting out (inverse) calculations on data produced or pre-loaded into the Pocket PC. S-Calc will also calculate co-ordinates along road straights and curves, again storing the data generated to the Pocket PC for plotting or calculations. There is also a function for calculating co-ordinates from drawings, all data generated can be stored for future reference, the file handling capabilities built in to S-Calc will help to avoid repetition in site calculations which are the cause of many errors.