What digital protocol is used by APRS?
Could you please clarify what digital protocol is utilized by APRS? I'm curious to know if it's a widely recognized and established one, or if it's a proprietary system developed specifically for their platform. Understanding the underlying technology behind APRS would help me evaluate its security, scalability, and overall suitability for various use cases. Additionally, knowing the protocol would also give me insight into how APRS interacts with other systems and networks, as well as the potential for interoperability with other platforms. Thank you for your time and consideration.