This is not a [PIC] thread. I don't want to hear any silly remarks as "this could not be done with a PIC". It's not about NMEA or about using NMEA with a PIC. I'm interested if some RF people over here have tried succesfully to decode the output sign-magnitude information from a GPS receiver frontend (4.092 or 1.023MHz IF) thank you, Vasile -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist