Uniden Bc780xlt Trunk Tracker Scanner Owners Manual

To enter an EDACS®ID:
a. Enter ID you want to store.
Use the  for the “dash”.
b. Press 
E.
Hint: Remember that Unidens AFS format allows you to enter full or partial EDACS IDs for
powerful flexibility in all modes. Be sure to read the section EDACS Reception on
page 49 to learn how this works.
Note: The BC780XLT defaults to “AFS” talkgroup displays for EDACS
®only.
––– OR –––
To enter a LTR ID:
a. Enter Area code and then press  .
b. Enter Home Repeater number and then press .
c. Enter ID you want to...

ID Scan Mode
1. Press SCANto begin scanning the lists you 
have programmed.
If you havent programmed any IDs, 
ERRORappears
for a few seconds.
2. To remove a Scan List from active scanning, press
the number of the Scan List on your keypad.
The Scan List indicator turns off, and the IDs in that
list are not scanned.
Note: One Scan List must always be active. If you try
and deactivate all the Scan Lists, Scan List 1 will
automatically be active.
3. To restore a Scan List to active scanning, press its...

45
Setting Priority in Trunking Mode
You can set priority in your trunking lists, just as you do in your conventional ones. You can
set the priority by pressing and holding PRI for 2 seconds. After you’ve set up your Scan
List, press 
PRIto activate it.
It’s very similar to conventional priority although there is no “interrupt” during the
transmissions. Priorities are checked in between transmissions.
With Priority on, you can hold on an ID in your Scan List, such as Scan List 6, memory
position 7, and...

46
I-Call (Motorola/EDACS)
I-Calls are direct unit-to-unit transmissions that are not heard by other system users. Your
BC780XLT can receive these transmissions. How you receive I-Calls depends on whether
you are in Search or Scan mode.
During I-Call reception the display will show the Unit ID number of either the transmitting or
receiving mobile unit, not a talkgroup. Unit IDs will display differently according to the type of
trunked system, and will replace the ns shown here.
EDACS and MOTOROLA TYPE...

47
I-CALLS IN SCAN AND MANUAL MODE
You can store I-Call IDs in scanlists, just like talkgroup IDs, for use by ID Scan and Manual
modes. To program a specific I-Call Unit ID into a scanlist:
EDACS or Motorola Type 1
Enter  followed by the Unit ID digits, then 
E.
Motorola Type 2
Enter 
7followed by the Unit ID digits, then E.
HINT- There is a special code to let you receive all I-Call IDs with a single scanlist entry.
Simply enter  , 
0, E. This will store the special code i0in an EDACS scanlist, or...

48
TRUNK SEARCH: This mode works similarly to TRUNK SCAN. If the scanner finds any
(non-locked-out) ID when it checks the control channel, you will hear it. You will then hear
any replies that follow within two seconds (or whatever delay you may have set). After that
the scanner will move on and not continuously search the system for additional IDs (on
busy systems you would never leave the system if this were the case). Note that if you
press the 
SRCHkey while monitoring one ID, the radio will check if...

49
EDACS®Reception
EDACS®Tracking
TrunkTracker III now allows tracking of EDACS®trunked systems. Until now these widely
used systems have been almost impossible to monitor with a conventional scanner. With
your TrunkTracker III listening to EDACS(s) is remarkably easy, and perhaps even easier
than conventional scanning.
EDACS systems use Transmission Trunking, which means that each transmission is
assigned a new frequency. As the conversation moves through the systems frequencies,
your TrunkTracker II...

50
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...

51
Special EDACS®Features
AFS Partial Entry Feature
AFS is Unidens method of encoding EDACS talkgroups. AFS stands for Agency-Fleet-Subfleet.
AFS talkgroups are used in all EDACS reception -- in ID SEARCH, ID LOCKOUT and ID SCAN
scanlists. The powerful AFS Partial Entry feature designed into the BC780XLT lets you use either a
complete talkgroup code, or just the most significant part.
This feature lets you expand or narrow searching and
scanning to one of 4 levels. By entering only the desired
part of an...

52
LT R®Reception
LT R®
Tracking
LT R®(Logic Trunked Radio) systems are trunking systems used primarily by business or
private communications service providers, such as taxicabs, delivery trucks, and repair
services. These systems encode all trunking information as digital subaudible data that
accompanies each transmission. Users on an LTR system are assigned to specific
talkgroups, which are identified by the radio as six digit numbers. These numbers are in the
form AHHUUU, where:
A= Area code (0 or 1)...