Do you mean that one he has that allows you to reduce the timestamp of each gps fix incrementally so it appears you are faster than you are?
Also, if it's GPX, open in notepad, take out the headers, whack them together and save. (It's a little bit more involved, but if you have a look in notepad you'll prob be able to pick up what's going on).
Do you mean that one he has that allows you to reduce the timestamp of each gps fix incrementally so it appears you are faster than you are?
Also, if it's GPX, open in notepad, take out the headers, whack them together and save. (It's a little bit more involved, but if you have a look in notepad you'll prob be able to pick up what's going on).