What is the Internet Radio Linking Project (IRLP)?

The Internet Radio Linking Project (IRLP) is indeed a technique designed to connect amateur radio systems, such as repeaters, using Voice Over Internet Protocol (VoIP). This technology allows for real-time voice communications between radio stations that are located miles apart, linking them over the internet while maintaining their ability to function as part of the traditional amateur radio network. By utilizing VoIP, IRLP enables operators to communicate across vast distances without the limitations of typical radio frequency propagation.

The other options describe different systems or functionalities that do not pertain to IRLP. For instance, while providing access to websites via amateur radio might involve digital modes or protocols, it does not encompass the core function of IRLP, which is specifically about linking voice communications. Similarly, real-time frequency information about active DX stations pertains more to logging and propagation tools rather than linkage, and measuring signal strength refers to performance metrics which are not part of the IRLP methodology. Understanding the purpose and functionality of IRLP is essential for operators looking to expand their communication capabilities through internet linking.