Uniden Bc780xlt Trunk Tracker Scanner Owners Manual

53
Motorola Reception
Motorola Tracking
There are really two types of Motorola trunking systems. These are usually referred to as
Type I and Type II systems. Type I only occurs on some 800 MHz systems. All VHF, UHF
and 900 MHz trunking systems use Type II.
One important distinction between these two systems is the amount of data transmitted by
each radio when its push-to-talk button (PTT) is pressed. Every radio in a trunked system is
assigned a unique ID so the central site computer can identify it when...

54
Fleet Map Programming
If you have programmed a trunk tracking bank for Motorola type and press TRUNKto start
Multi-Track, you will see user IDs display on your screen. Since the BC780XLT defaults to
Type II systems, all the IDs will appear as numbers. However, if you notice a mix of odd and
even user IDs, for example 6477, 2560, 6481, 6144, 1167, etc., then you are probably
monitoring either a Type I or Hybrid systems.
You may also notice that you are missing responses when you hold on an active ID....

55 3. Select the size code for the first block using 
s, t, or VFO.
4. Press 
E, SELECT,or VFO.
The next available block displays.
5. Repeat step 3 and 4 until you have selected a size
code for each block.
For details about each size code, see Fleet Map Size
Codes in the Appendix.
Programming a Hybrid System
A Hybrid system is simply a Type I system with some blocks designated as Type II blocks. To
program a Hybrid system, follow the steps listed in Programming a Fleet Map in the previous
section....

56 7. Enter a new offset channel with the keypad.
Note: You can only input within a range of 380-759.
8. Press 
E.
The display changes for entering the next base frequency.
9. To exit from this mode, press 
MENUrepeatedly.
Note: • If the system is not tracking properly, you may need to try a new base frequency or 
offset channel or you may be missing frequencies from the system.
•  You can set up to three base, spacing and offsets for Motorola VHF/UHF trunked systems.
10. The offset channel for the first...

57
Control Channel Only Mode
When this function is activated, trunking is performed using control channel data only. Voice
channel (also known as working channel) frequencies do not have to be programmed into
memory. When using this feature, the scanner will display CC and channel activity indicator
bars will not operate. This feature only applies to Motorola 800 MHz and 900 MHz systems.
To turn this function on, choose Motorola Type-2 800 MHz or 900 MHz or TYPE 1 by
selecting TRUNK DATA - BANK NO. -...

58
Disconnect Tone Detect Option (End Code)
When this function is disabled, the radio looks for squelch before returning to the control
channel instead of waiting for the disconnect tone. Only in rare instances will you need to
adjust the default settings.
The condition to return to control channels depends on whether the signal is present or not.
To set this function on/off, enter TRUNK DATA - BANK NO. - END CODE.
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59
Remote Interface
You can communicate and program your BC780XLT in numerous ways with peripheral
devices using the Remote Interface Cable port. This radio offers the following modes:
vSMARTSCAN MODE
Automatically load frequencies, trunking talkgroups and fleetmaps from the Uniden
National Frequency Database server into your scanner using an external modem or an
internal modem included with a personal computer (PC).
vREMOTE (PC Control) MODE
Program and control your scanner remotely from a PC using...

60 To connect Scanner to External Modem:
Plug the scanner end of the RS232C straight interface cable into the remote port on the rear
of your scanner. Plug the other end of the cable (DB-9 serial connector) into the external
modem. You may need a DB-9 to DB-25 (or DB-9) null modem adapter, available at most
computer stores. Of course, make sure your external modem is turned on. Make sure that
you have a phone line plugged into the modem jack on the back.
To perform the SmartScan Download:
You can...

61 6. After clearing, the DIAL STARTmessage appears.
Press 
1to start dialing.
7. If the connection is successful, the scanner starts
frequency downloading.
COMPLETEwill be displayed
when your downloading is completed.
8. To start the scanner, turn the unit off then on.
If downloading is not successful, one of the following error messages will appear.
Modem Access Error:
No Carrier:
Telephone Line Busy:
No Answer:
Server Connect Error
Data Idle Time Out
Note: If the scanner does not display 
DOWNLOAD...

62
Menu for SmartScan
In the menu mode (SYSTEM DATA - SMART SCAN), you can change several parameters
used for SmartScan.
• Bank lock
• Transfer speed
• Flow control setting
• Dial type
Bank Lock
SmartScanner will overwrite frequencies that you have already programmed into your
scanner. To save the previously programmed frequencies, you can lock out specific banks
prior to calling the database as follows:
To turn on this feature, enter into the menu mode.
1. Press 
MENU.
2. Select SYSTEM DATAusing s, tor...