EDACS talkgroups are carefully planned when the system is being set up. They are organized into an outline structure, with AGENCIES being the major groups, and FLEETS being the sub-groups. The very FIRST talkgroup in each level is reserved by EDACS for a very special purpose.
(1) SYSTEM ALL-CALL -- The very first talkgroup in the whole SYSTEM is always
00-000. Any transmission on that talkgroup will be heard by EVERY RADIO IN THE SYSTEM.
(2) AGENCY ALL-CALL -- The first talkgroup in each AGENCY transmits to every radio in that Agency.
(3) FLEET ALL-CALL -- The first talkgroup in a FLEET calls every radio in that Fleet.
It seems strange, but we DON'T LIST these unique talkgroup
codes in the EDACS GUIDE.
Why? Because they are SO SPECIAL that they are almost NEVER
USED. Because they LOOK so special, users may think
that they can store them to hear everything. In fact
they will hear almost nothing.
To help prevent this mistake, we have changed the way we show them.
We now show them in RED, without the talkgroup number. Agencies are
shown with " = = = " and Fleets are shown with " - - - ".
This format lets you clearly see the logical outline structure
of the system without being distracted by codes you
may not want to use. (Of course these special talkgroups ARE used in some systems, and in some situations, so you can program them as desired. Although the talkgroup listings don't currently show the values you should be easily able to figure them out from context.)
ORIGINAL FORMAT NEW FORMAT
01-000==SHERIFF AGENCY ========SHERIFF=================
01-010---PATROL FLEET ---------PATROL
01-011 North 01-011 North
01-012 Central 01-012 Central
01-013 South 01-013 South
01-020---INVESTIG FLEET ---------INVESTIG
01-021 CID 01-021 CID
01-022 Homicide 01-022 Homicide
01-023 SID 01-023 SID
01-030---TAC FLEET ---------TAC
01-031 North 01-031 North
01-032 Central 01-032 Central
01-033 South 01-033 South
03-000==FIRE/EMS AGENCY ========FIRE/EMS================
03-010---FIRE FLEET ---------FIRE
03-011 Dispatch 03-011 Dispatch
03-012 North 03-012 North
03-013 Central 03-013 Central
03-014 South 03-014 South
03-020---EMS FLEET ---------EMS
03-021 Dispatch 03-021 Dispatch
03-022 North 03-022 North
03-023 Central 03-023 Central
Please email comments and submissions to Terence Brennan and Sean Sullivan at firstname.lastname@example.org
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EDACS stands for "Enhanced Digital Access Communications System", and is a registered trademark of Ericcson Corporation.