An EDACS Trunked System
(US Only)
84
This chart shows how talk groups may
organized within an EDACS system at the
AGENCY level. The FLEETS and
SUBFLEETS cannot be shown at this scale
because there are 2048 possibilities.
The system is logical and easy
to understand.
System users are given blocks of talk
groups. 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 talk groups in
AFS (Agency-Fleet-Subfleet) format. This
helps you see, at a glance, who you are
monitoring. And with the XPAND feature
(see page 50) you can easily include
nearby, related channels in the same Fleet
or Agency.
Assuming that you have the system
frequencies programmed, and your scanner
is locked to the control channel, you can
select a desired city by simply searching on
the AGENCY part of the AFS talk group
number. For example, you can select the
entire city of Sullivan with 4 key presses -
zero, three, dot, SRCH.
If you hear an interesting talk group, capture
it to your scan list by pressing E during
the transmission.
If you want to monitor the Sullivan Police
Dispatch channel (which is talk group
03-062), you key in zero, three, dot, zero, six,
two, SRCH.
Your scanner can switch between AFS and
DECIMAL display. This channel, in decimal
format, is 434. But decimal format does not
give you any information about the system
hierarchy. For example Sullivan, in decimal,
uses channels from 384 to 511. This is not
as easy to remember as Agency 03. But it
will help you if you need to use decimal
talk group lists.
Summary of Contents for UBC 245XLT Trunk Tracker II
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