What is a trunk tracker?

A trunk tracker is a type of radio scanner designed to monitor trunked radio systems, which are used by public safety organizations, businesses, and other entities for communication. Unlike conventional radio systems that operate on fixed frequencies, trunked systems dynamically allocate frequencies among users to optimize channel use. Trunk trackers can automatically follow these frequency changes, allowing users to listen to conversations across multiple talk groups and channels seamlessly. This functionality is particularly useful for tracking emergency services and other critical communications.