Now he uses a "SATVLTransfer code which does the same thing. I do not understand how it gets into the applications automatically?
Yes I do not use Windows or any silly VB code
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Still not quite sure what you're asking, so pardon me if this is obvious - the serial characters come across the usb connection, and the satvltransfer.exe apparently receives them and saves them to a file. Is that the part you're asking about - save them to a file? I would assume they are just taking the data in whatever format it's coming over in, separating out the different variables, and formatting the data into a .csv format, and saving it to a file on your computer. If you're not familiar, .csv stands for comma separated values. You just write a text file that contains all of your data, separated by commas, with a newline character between rows. Rename it to .csv, and you can open it with open office or excel.
Example of the formatting...
139756,546.53,0.00,425,5,302,7,426,7,
139756,546.51,0.00,430,5,308,7,438,7,
139752,546.53,0.00,424,5,303,7,405,7,
139760,546.53,0.00,440,5,310,7,427,7,
119788,546.51,0.00,437,5,311,7,429,6,
139752,546.51,0.00,427,5,305,7,439,7,
139764,546.53,0.00,426,5,310,7,406,7,
139752,546.53,0.00,433,5,310,7,432,7,
139756,546.53,0.00,430,5,303,7,422,7,