Hello, I saw this message on the list. Has some one realised anything ? 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 SURDUCAN Vasile, have you an answer ? I have a GPS card with SE4110L (from Sige). I have 3 signals : Sign, Mag and a Clock. But, how can I decode something with this ??? Thanks for your help. Christian, from France, poor english, excuse me ! --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .