Posted on 01/20/2013 2:35:53 AM PST by Las Vegas Dave
Scroll down and randomly click on a call sign.
Zoom in on the map and click on a red waypoint for info.
Use your "back" button and pick another.
This Ham radio system is known as APRS. Handy and a lot of fun.
You'll see it's used a lot more in the rest of the world than in the USA.
Notice the speeds. A lot of ships, some aircraft.
GPS not even needed. The cell network alone can be pretty discrete, especially in urban areas.
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