Quote: Originally Posted by W1N
What do you mean? I already have another device that has the GPS in it, but I do not want to istal a second antenna in my car. So why not use the one that already exists, when I can't use OnStar here anyways...
Onstar has a GPS unit in it that you can use whether you are using onstar itself or not.
Quote:
Antenna is antenna, it is mechanical component. If it has been designed to communicate with GPS satellites, it is very likely that the antenna can be used for positioning and other satellite using devices too.
Wrong! The gps is designed to talk to the satellite, the antenna is chosen for the characteristics of the specific gps. Different antennas can be very different. Have you not wondered why you need a huge dish to pick up sky tv from a satellite but only a little antenna to pick up gps?