36 Basic operationSubscribing to a new groupA trunked radio system may consist of a many fleets ofradios, each with a number of talkgroups and scan groups.A talkgroup consists of radio users either within the samefleet, or across multiple fleets. A scan group is a group oftalkgroups.When your radio belongs to a talkgroup or scan group, it issaid to be “subscribed”, and you receive all calls directed tothat group of users.The diagram below shows a typical trunked radio systemwith fleets, talkgroups and a scan group.The different ways the talkgroup can be displayed on yourradio is described in "Talkgroup scrolling in trunked mode"on page 29.FleetsTalkgroupsScan group
