Edacs Trunking Mode (Ed) - Radio Shack PRO-96 Owner's Manual

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 receive quality of the control channel signal.

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 Number (LCN). For the scanner to correctly switch to an active
frequency, you must program the frequencies in LCN order, starting with Memory 01.
EDACS talkgroup IDs are entered as a 4-digit decimal number from 0001 to 2047 or AFS
(Agency Fleet Subfleet) number from 00-001 to 15-157.
When there is activity on an EDACS system, that information is sent out on the control
channel. The scanner decodes the ID for the active talkgroup. In the Open Mode, the
scanner then goes to the transmission and displays the talkgroup ID on the bottom line of
the display. In the Closed Mode, the scanner only goes to transmissions with IDs that
match talkgroup IDs you have stored in the bank's talkgroup ID list that are not locked
out.
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