How is the data sent by GPS trackers?

I would like to know we can get the data from the GPS tracker onto a mobile app or laptop. For example with car GPS trackers. Is there a SIM card installed with every GPS tracker or how do these GPS trackers get on the Internet or on a server to send the data to devices or How do the GPS tracker manufacturers solve this?

Via GPS --- satellite

Yes, they have a SIM card.

You can use it to determine the position, but you can't tell anyone about it. The latter works via a mobile phone network, and you need a SIM card for this.

Wrong… There are also satellite telephones… They also have no SIM

Yes, there are. However, most GPS trackers work with terrestrial mobile networks and a SIM card.

Do you know what the connection costs?

But only because the satellites would otherwise be overwhelmed

Nothing via SIM card. Just data prices. It would be a little more expensive via satellite

There are definitely active GPS signals. They are inside emergency transmitters.

How exactly they do that with such auto-trackers, I'm not sure, but via the mobile phone network and as data transport makes the most sense because you need less power because of which the trackers run longer.

With normal trackers via mobile radio and the like.

Because some of them spoke of satellites: Emergency beacons send signals that can be received by corresponding satellites and then passed on.

However, this is a very specific application.

Emergency beacons work completely differently, by the way, they don't even need GPS. Of course, a GPS fix can be sent in the emergency signal, but the signal has nothing to do with a GPS signal.