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An EDACS
®
Trunked system
This chart shows how talkgroups are
organized within an EDACS system
at the Agency level. The individual
talkgroups cannot be shown at this
scale because there are over 2000.
However the chart can show the 16
Agencies in this example. The system is
logical and easy to understand. EDACS
systems are typically arranged in an
outline structure.
The system users are given blocks of
talkgroups. Sizes vary but most large
cities and other agencies have blocks of
128 channels. Smaller cities have only
64 or 32 channels.
In this example, the County Sheriff is
agency 01. The city of Sullivan is
Agency 03. Adams Hill and Matthew
Junction share Agency 08.
Your scanner shows EDACS talkgroups
in AFS (Agency-Fleet-Subfleet) format.
This helps you see, at a glance, who
you are monitoring. And with the partial-
entry feature you can easily include
nearby, related channels in the same
Fleet or Agency. You can just as easily
exclude entire unwanted Fleets and
Agencies.
When in Search mode, with the system frequencies
programmed, and your scanner locked to the control channel,
you can select a desired city by keying in the Agency part of
the AFS talkgroup. For example, you can select the entire city
of Sullivan with 4 key presses 0, 3, (decimal key),
SEARCH.
When you hear an interesting talkgroup, capture it to your
Scan List by pressing TRNSFR and E during the
transmission.
Or hold on it by pressing the HOLD/MAN key.
If you want to monitor the Sullivan Police Dispatch channel
(which is talk group 03-062), press 0, 3, (decimal key),
0, 6, 2, RSM or SCAN.
Your scanner can also work in decimal format.
This talkgroup in decimal format is 434. But decimal format does
not give you any information about the system hierarchy.
.
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BC250D 11/6/2 11:37 AM Page 65