No. Spacing between track messages does not change based upon your location in the world.
Satellite service is wireless and requires a clear line of sight toward the satellite; therefore, the service is inherently subject to transmission and reception limitations caused by: (i) your location, including conditions that obstruct the line of sight between you and the Satellite Systems; (ii) the condition of the Satellite Systems and ground stations; (iii) the condition of your SPOT device; and (iv) weather conditions, atmospheric conditions, magnetic interference, environmental, and other conditions beyond SPOT's or the Satellite Systems' control.
You may use your SPOT anywhere there is coverage. Coverage areas include virtually all of the continental United States, Canada, Mexico, Europe and Australia, portions of South America, Northern Africa and Northeastern Asia, and hundreds of thousands of miles offshore of these areas.