>gps i am using is FGPXMO serial GPS Receiver Module. >what is the initial message that send to gps to get >the NMEA data, please give me details about that, >and what are the major pins that are used to do >connection between hypertermianal and gps. Well what does the data sheet and programming manual say? If you do not have them, and cannot find them on the manufacturers web site, why are you attempting to use this module, -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist