Starlink is a more multipurpose tool than nobody expected.

"What if Starlink could track climate change? Scientists just proved it’s possible — using its signals to monitor Earth’s shifting gravity and weather patterns. Now, they’re fine-tuning the tech for even more precision." (ScitechDaily, Scientists Just Found a Hidden Climate Tracker in Starlink’s Signals – And It’s a Game Changer)

"By using the Doppler effect, scientists have found a way to analyze signals from Starlink and similar networks, revealing insights into climate, sea levels, and weather patterns. Precision is still a challenge, but the potential for global observation is enormous."(ScitechDaily, Scientists Just Found a Hidden Climate Tracker in Starlink’s Signals – And It’s a Game Changer)

The satellites can transmit information. But they can also collect hidden information. Secondary, or hidden data forms when those signals travel through magnetic fields. And different types of chemical compounds. When a radio signal impacts some atom or chemical compound. The thing stores energy in it. When the energy level is high enough, that atom sends an energy impulse. Can make changes or disturb radio transmissions. 

The same way the size of gas components scatters radio waves. Those things require that satellite must calibrate their systems. In those cases, satellites store that data in their memories. That data can uncover new things from the atmosphere.  

Theoretically, it is possible to use Starlink as the global satellite surveillance platform. Just like other radio transmitters the radar systems use radio waves. So it's possible, to connect radar and radio data transmitter into one antenna. 

"An artist’s concept of the Blue Ghost lunar lander receiving Global Navigation Satellite System, GNSS signals from Earth. Credit: NASA/Dave Ryan" (ScitechDaily, GPS on the Moon? NASA’s Historic Breakthrough Just Changed Space Travel)

"NASA and the Italian Space Agency achieved a historic milestone on March 3 when the Lunar GNSS Receiver Experiment (LuGRE) became the first technology demonstration to detect and track Earth-based navigation signals on the Moon’s surface." (ScitechDaily, GPS on the Moon? NASA’s Historic Breakthrough Just Changed Space Travel)

"LuGRE’s success in both lunar orbit and on the surface confirms that signals from the Global Navigation Satellite System (GNSS) can be received and utilized at the Moon. This breakthrough could enable future missions, including NASA’s Artemis program, to autonomously determine their position, velocity, and time with greater accuracy. It also lays the groundwork for more advanced navigation systems on both the Moon and Mars." (ScitechDaily, GPS on the Moon? NASA’s Historic Breakthrough Just Changed Space Travel)

The Earth-orbital-based GPS can also theoretically operate on the moon. That system uses the cloud of the Earth-orbiting satellites as the giant telescope that can operate as one large antenna. The system determines the location signal angle of each satellite. And that satellite cloud can locate crafts from the moon. But the cloud of miniaturized communication satellites orbiting the moon can also operate as GPS like Starlink operates. 

The Starlink satellites can operate like GPS satellites. They can track the transmitter or modem from the ground just like GPS. And Starlink's ability to point modems from the ground is used in the Ukraine war. The Starlink system can make the world safer. It is a very multipurpose tool. If we want to make the moonbase or stable moon laboratories we must create the navigation system that can operate on the moon. 

On the moon, dayside. Or the side that is to Earth. It's quite easy to locate a person or vehicle. Those things can have lasers or radio transmitters that send location signals to telescopes on Earth. But communication on the Moon is much more difficult than on Earth. The lack of an ionosphere means that only a small hill can deny the radio communication between astronauts and their vehicles. The stone between astronauts can also deny communication. 

So there is the possibility of using a satellite swarm that orbits the moon. The system can use the same technology that Starlink uses when it tracks modems. The difference between laser and radio communication is that the lasers cannot penetrate the ground. But the real thing about radio transmissions is that they can cover large areas. 

Radio transmissions can transmit to a larger number of receivers. That makes mass-transmitting possible. Radio waves can travel through clouds and walls better than lasers. Lasers transmit more energy to layers than radio waves. And that can cause damage to structures. Otherwise, radio transmitters are easier to jam than lasers. 

Laser systems can also make large-area laser data transmissions. If those systems use lidar-based technology they can make large-area beams. The photocells or CCD systems can turn into electricity. The CCD cameras and computers can also read laser data transmissions. 

There are no clouds around the moon. And that makes laser transmissions suitable for data transmission on the moon. Those laser systems can operate as relay stations for the Moon data transmission and location systems. The Earth station sends signals to those satellites. In the form of radio waves. 

https://scitechdaily.com/scientists-just-found-a-hidden-climate-tracker-in-starlinks-signals-and-its-a-game-changer/