SS=Subfleet ID

Type I systems are usually organized with different user groups assigned to different fleets.Ô

To properly map the raw Type I data to the correct fleet-subfleet format, you must program the correct fleet map into the scanner. Fleet map information is widely available on the Internet for most Type I systems in use.

Type II and APCO-25 system talkgroups are identified by a 5- digit number. Valid Type II talkgroup IDs are divisible by 16, while APCO-25 talkgroups are not. Use care to ensure that you enter the correct Type II IDs into your scanner. Type I/II hybrid systems use both fleet-subfleet and 5-digit formats for talkgroup IDs.

EDACS Trunking Mode (ED)

You can set your scanner so it decodes the talkgroup IDs used with EDACS (GE/Ericsson/M/A- COM) trunking systems. This setting is called the EDACS mode.

EDACS systems are used primarily by business or private communications service providers, as well as by some public safety organizations. EDACS systems transmit active talkgroup information only on a dedicated control channel.

EDACS frequencies are organized in a specific order. Each frequency is assigned a Logical Channel

Ô NOTES Ô

•For example, a valid fleet-subfleet ID identifying all detectives within a police department might be 000-12, where 000 identifies all police users and 12 identifies the Detective division.

•Tuning the scanner to an active control channel while in Motorola mode will display the Motorola System ID and the approximate control channel message decode success rate. This information can help you identify the Motorola trunking system that you are monitoring and the quality of the control channel signal.

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