First of all, unlike earlier satellite communications which relied on a motorized dish to chase the mobile satellites across the sky, modern satellites are placed into a geosynchronous orbit about 37,000 km (22,300 miles) up. This means that they always remain above the same point on the earth’s surface. That way, all dishes on the earth can be pointed at a fixed location, and the satellite will always be there.
The signal to be » Read more: How Does Directv Satellite Technology Work?
