Hi, I am trying to read the GPS data using serialport.Readexisting() on visual studio 2008. Most of the times, I am missing some characters inbetween the data. For example, when I read the coord, I should receive the complete "$GPGGA" string, but rather "$GPGGA,,,,,,0,,,,,,,,*66. Why am I missing the characters between '',"? Here is the sample readstring data "$GPGGA,,,,,,0,,,,,,,,*66\r\n$GPRMC,,V,,,,,,,,,,N*53\r\n$GPGSA,A,1,,,,,,,,,,,,,,,,*32\r\n$GPVTG,,T,,M,,N,,K*4E\r\n$GPGSV,1,1,00*79\r" string

Hi,Since here is the froum for Exchange,I recommend you to use MSDN forum to get relevant help. MSDN>Forums Home>Visual Studiohttp://social.msdn.microsoft.com/Forums/en-US/category/visualstudio/Regards,Xiu