Which of the following best describes an amateur radio mesh network?

An amateur radio mesh network is best described as a data network that utilizes commercial Wi-Fi equipment combined with modified firmware specifically for amateur radio applications. This setup allows for the creation of a decentralized wireless network that can be used for various forms of digital communication, enabling amateur operators to share data and connect with one another without reliance on traditional internet infrastructure.

The use of modified firmware is crucial as it adjusts the equipment to operate in compliance with amateur radio regulations and can enhance the performance and functionality specific to the needs of the amateur radio community. Mesh networking allows for multiple communication paths and helps increase reliability, as signals can be routed through various devices in the network if one connection fails.

In contrast, other options discuss different aspects of amateur radio and networking. For instance, the first option pertains to repeater linking, which is a different function, focusing on extending coverage rather than creating a mesh network. The second choice references a digital voice mode that does not inherently involve a mesh configuration but is more related to voice communications. The fourth option describes a satellite network setup, which operates on significantly different principles and technology compared to a mesh network. Thus, the clear distinction and focus on Wi-Fi equipment tailored for amateur use make the chosen answer the most accurate.