User's Manual

20-496 Owner’s Manual Draft Page 13/78
Notes:
. 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 receive quality of the control channel
signal.
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/ACOM)
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
PREPARATION
MOUNTING THE SCANNER IN YOUR VEHICLE
Before you mount the scanner, make sure you have all the necessary materials. Then confirm that the