Which of the following describes a linked repeater network?

A linked repeater network is best described as a system where signals received by one repeater are then transmitted by all repeaters in that network. This design allows for broader coverage, as a signal can be picked up by one repeater, which retransmits it to other repeaters, thereby enhancing communication over larger distances. This is particularly useful in amateur radio, where operators may need to communicate across vast areas.

In this context, if one repeater receives a transmission, it can pass that transmission onto other repeaters, effectively creating a network where signals can travel much further than they would through any single repeater's coverage area. This interconnected approach is fundamental in amateur radio operations to facilitate communication among users over large geographical regions.

The other options do not accurately capture the essence of a linked repeater network. For example, a single repeater with multiple receivers focuses on a different concept: managing multiple incoming signals, but does not involve the collaboration of multiple repeaters. Similarly, having multiple repeaters under the same control operator describes a configuration of management rather than their operational links. Linking repeaters using APRS (Automatic Packet Reporting System) is a specific application rather than a general description of how all linked repeater networks operate.