APRS

Yes, as long as the modulation signal is easily accessible for transmission and reception. This works best if the radio has a "Data" socket.

A radio, a TNC capable of packet radio and software. Alternatively, you can use the radios from Kenwood: TH-D72, TH-D74, TH-D75, TM-D700, TM-D710 and the AT-D878UV from Anytone. An APRS tracker can also be used to transmit instead of a TNC.

This is very easy to do on the websites https://aprs.fi and https://aprs.to, for example.

This is done via so-called APRS gateways. Many radio amateurs operate a pure receive gateway. Other stations operate as digipeaters (relay stations) and transmit the data to an APRS-IS server at the same time.

The best place is the website of the inventor, Bob Bruninga (WB4APR sk), aprs.org. Here you can find the protocol specification and all other information.

Packet radio is a digital mode in amateur radio that allows data packets to be sent and received in a similar way to the Internet. The data is divided into small packets and sent with address and error correction information. Each packet is forwarded to its destination through a series of amateur radio stations that act as nodes. This technology makes it possible to transmit text messages, position data and simple telemetry data over long distances, even when there is no direct radio contact between end users. Transmission usually takes place on frequencies in the VHF/UHF range, less often on shortwave. The AX.25 protocol is used. Packet radio was a popular method of forming amateur radio networks, especially before the Internet was widely available.

An APRS tracker is a device used in the amateur radio world to automatically send position data via packet radio to track the station. In Europe, the frequencies 144.800 MHz for VHF and 432.500 MHz for UHF are generally used. APRS stands for "Automatic Packet Reporting System" and is designed to convey real-time position information, weather data and other relevant communications. The tracker typically combines a GPS receiver with a radio modem to send location information to the APRS network. This information can then be received by other amateur radio friends or visualized on the Internet via APRS Internet gateways. This system is often used by radio amateurs to track the movements of vehicles or to quickly disseminate