What are trunked radio systems
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What are trunked radio systems?. Michael Shaw. Trunked radio systems allow an agency to use a small number of frequencies to permit a large number of transmissions, hence saving money.

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  • Trunked radio systems allow an agency to use a small number of frequencies to permit a large number of transmissions, hence saving money.

  • Trunked radio systems also have repeaters, making them easy to follow for units with correctly programmed radios.

  • Without correctly programmed radios, following the transmissions of a trunked radio system is impossible, as the frequency is constantly changing.


  • Trunked radio systems work by giving users a of frequencies to permit a large number of transmissions, hence saving money.talkgroup ID. This ID allows them to transmit on any frequency in the frequency bank.

  • For example, the Highway Patrol division would use ID 6531, and the Sheriff’s Office would use 4986. When the user of either division keyed up on the radio, the system would assign that ID to a temporary frequency.

  • Since the frequencies are always changing, it requires a smaller amount of frequencies and saves departments money.



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