On September 23, "elihme [via ES]" <
[hidden email]> wrote:
> A GPS unit that can be used for tracking a car cannot be your usual GPS
> receiver. Most include a transmitter too.
Yes, I just looked this up. It appears that there would be a cellphone network
transmitter associated with GPS tracking. So your car would have a 2G or 3G
cellphone transmitter in it for the tracking function. With the transmissions
either occurring "on demand" (when requested by whoever is tracking you),
or in some regular intervals.
Marc