What is the satellite link for?

The role of the Star Link project is to provide Internet services to remote areas.

The satellite chain is a project of Space Exploration Technology Company. The company plans to build a "satellite chain" network consisting of about10.2 million satellites in space to provide Internet services to the whole world. In the later period, the total number of satellites will reach 42,000. At this number, low earth orbit will be completely occupied.

The United States has launched a satellite chain before, which runs through the sky like a "Galaxy train". This scene was recorded by the photographer. According to experts, the orbit height of the satellite chain is low when it is just launched, and it can generally be observed during the transit after sunset or before sunrise.

Satellite chain principle

A satellite link works in the same way as any other satellite Internet service. Signals are transmitted back and forth between the ground station (usually a small dish antenna) and the satellite, and then transmitted to the ground station connected to the traditional land-based Internet.

"Star Chain" solves these problems through satellites that are closer. The satellite is only 265,438+00 miles from the ground, which means that in order to provide continuous coverage, it needs more satellites in each orbit to provide coverage. The advantage of this is that there are so many satellites that it is possible to see two or more satellites at any given time. With the ability to launch so many satellites, launching some satellites into polar orbit will make the coverage reach two poles.