The trunking system automatically transmits the call on the first available frequency, and also sends a code that uniquely identifies that transmission. Instead of selecting a specific frequency for a transmission, the user simply selects a talk group. Trunking communications systems let a large group of 2-way radio users (or even different groups of 2-way radio users) efficiently use a set of frequencies. Your RadioShack Handheld Scanner is one of a new generation of scanners designed to track Motorola Type I and II (such as Smartnet and Privacy Plus ) and hybrid analog trunking systems, and GE/Ericsson (EDACS ) type systems, which are extensively used in many communication systems.
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