Uniden Bc796d Trunk Tracker Scanner Owners Manual

							Programming Motorola Systems
Follow the instructions in this section to program information for Motorola Type I, II, IIi
Hybrid, and APCO 25 Digital trunking systems.
Using Control Channel Programming
Your scanner has a powerful feature that lets you program in only the control channels for
Motorola 800 and 900 MHz systems. This can greatly shorten the time it takes to program
system information.
2:SCAN  OPTION →2:TRUNK →Select the bank→:CNTRL  CH  ONLY
For 900 MHz systems, you can then simply turn the feature on or off. For 800 MHz systems,
you need to select the band plan for the system:
1:PLAN1
Use if the last three digits of allof the frequencies used by the system end in 125,
375, 625, or 875.
2:PLAN2
Use if the highest frequency used by the system is above 866 MHz and if the last
three digits end in 000, 125, 250, 375, 500, 625, 750, or 875.
3:PLAN3
Use if the last three digits of all the frequencies in the system end in 000, 250, 500,
or 750.
4:PLAN4
Use if the highest frequency in the system is below 866 MHz and if the last three
digits end in 000, 125, 250, 375, 500, 625, 750, or 875.
5:OFF
Select to turn off control channel programming for this bank.
Note:•Many systems alternate control channels. To properly track the system, you need
to program all alternate control channels.
•If you do not know all of the frequencies for a system, but know at least one con-
trol channel, start by selecting Plan 1 (the most common type). If you notice that
you seem to be missing transmissions and replies, try each of the other plans
until you find the one that works best.
Programming Type 2/Digital 800 and 900 MHz Systems
To program a Type 2/Digital 800 or 900 MHz system, you need to know the frequencies that
the system uses.
1. Select the trunk programming mode.
2:SCAN  OPTION →2:TRUNK
2. Use the scroll bar to select the bank you want to program, then press E.
1:TRUNK  TYPE →1:ON
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							3. Select one of the following trunk types for Motorola Type 2 or digital Systems:
1:TYPE2/P25  800
Motorola Type 2 or Digital systems in the 800 MHz band
3:TYPE2/P25  900
Motorola Type 2 or Digital systems in the 900 MHz band
4. Select the channel to store the information into.
2:TRUNK  CHANNEL
Use the scroll bar to select a channel within the bank to store a system frequency, then
press 
E.
5. Store the channel information
1:FREQUENCY
Enter the frequency for the channel, then enter an Alpha Tag for the channel.
Repeat Steps 4 and 5 to store the rest of the frequencies for the system. Then, see
“Programming Talkgroups.”
Programming Type2/Digital VHF and UHF Systems
To program a Type 2/Digital VHF or UHF system, you need to know the frequencies the
system uses and also the Base, Space, and Offset settings. These settings are normally
provided along with the system frequencies.
1. Select the trunk programming mode.
2:SCAN  OPTION →2:TRUNK
2. Use the scroll bar to select the bank you want to program, then press E.
1:TRUNK  TYPE →1:ON
3. Select one of the following trunk types for Motorola Type 2 or digital Systems:
4:TYPE2/P25  UHF
Motorola Type 2 or Digital systems in the UHF (450 – 512 MHz) band
5:TYPE2/P25  VHF
Motorola Type 2 or Digital systems in the VHF (148 – 406 MHz) band
4. Set the Base, Space and Offset settings.
Note:Your BC796D allows you to enter up to three Base, Space, Offset configurations.
However, most systems only use one configuration.
a. Use the scroll bar to select the configuration to program, then press 
E.
BASE  CONFIG  1
b. Enter the system’s base frequency, then press E.
c. Enter the system’s space frequency, then press 
E.
d. Enter the system’s channel offset, then press 
E.
Repeat a-d or press 
MENUthree times to continue programming the system.
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5. Select the channel to store the information into.
2:TRUNK  CHANNEL
Use the scroll bar to select a channel within the bank to store a system frequency, then
press 
E.
6. Store the channel information
1:FREQUENCY
Enter the frequency for the channel, then enter an Alpha Tag for the channel.
Repeat Steps 5 and 6 to store the rest of the frequencies for the system. Then, see
“Programming Talkgroups.”
Programming Type I and IIi Hybrid Systems
To program a Type I or IIi Hybrid system, you need to know the system’s fleet map in
addition to the frequency information for the system. Fleet map information is usually
provided with the frequencies for the system.
1. Select the trunk programming mode.
2:SCAN  OPTION →2:TRUNK
2. Use the scroll bar to select the bank you want to program, then press E.
1:TRUNK  TYPE →1:ON
3. Select the following trunk type for Motorola Type I Systems:
2:TYPE1
Motorola Type I and IIi Hybrid Systems
4. Enter the fleet map information.
Your scanner has the most common fleet maps preprogrammed. Refer to Appendix for a
complete list of these fleet maps. 
Use the scroll bar to select the preprogrammed fleetmap 1-16 or, if the fleet map does
not match a preprogrammed set, select USER CUSTOM. Then, use the scroll bar to
select the size code for each block.
5. Select the channel to store the information into.
2:TRUNK  CHANNEL
Use the scroll bar to select a channel within the bank to store a system frequency, then
press 
E.
6. Store the channel information
1:FREQUENCY
Enter the frequency for the channel, then enter an Alpha Tag for the channel.
Repeat Steps 5 and 6 to store the rest of the frequencies for the system. Then, see
“Programming Talkgroups.” 
						

							Toggling the Status Bit
Motorola talkgroup ID’s are sent as a 16-bit binary number. Normally, the last 4 positions in
the number are 0’s, which result in all talkgroups being equally divisible by 16. These last
four bits, however, can be used by the trunking system to indicate various status conditions.
For example, an emergency status could be indicated by setting the second-from last digit to
1. Talkgroup 33264, then would be sent on the system as 33266 when the radio triggered its
emergency status. By default, the BC796D ignores the last four digits of every talkgroup,
effectively rounding them down to the nearest multiple of 16 regardless of the status bits.
2:SCAN  OPTION →2:TRUNK →Select the bank→0:STATUS  BIT
1:ON
Talkgroups are rounded down to the next multiple of 16.
2:OFF
Talkgroups are not rounded down, so you can determine the value of the status
bits.
Toggling End Code Detect
At the end of each transmission, a digital burst is sent so that radios on the system will
quickly switch back to the control channel. Your scanner also listens for this code.
2:SCAN  OPTION →2:TRUNK →Select the bank→:END  CODE
1:DETECT
The scanner detects the end code and immediately switches back to the control
channel.
2:IGNORE
The scanner waits for the carrier to drop before switching back to the control
channel.
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							Programming EDACS Systems
Follow the instructions in this section to program information for EDACS Wide, EDACS
Narrow, and EDACS SCAT trunking systems. Note that to program these systems, in
addition to knowing the system type and frequencies used, you must know the logical
channel numbers (LCN) for the system’s frequencies. This information is usually provided
with the frequency and other information. For more information refer to “Understanding
Scanning.”
Programming EDACS Channels
1. Select the trunk type.
2:SCAN  OPTION →2:TRUNK →Select the bank→1:TRUNK  TYPE
→1:ON
6:EDCS  WIDE
Select for 9600 baud EDACS systems.
7:EDCS  NARROW
Select for 4800 baud EDACS systems.
8:EDCS  SCT.
Select for EDACS SCAT systems.
2. Program each trunk channel in LCN order (not frequency order). If you program this in
the wrong order, the scanner will not go to the correct channel when scanning.
2:TRUNK  CHANNEL
ENTER  CHANNEL  No.
a. Enter the channel to program.
1:FREQUENCY
b. Enter the frequency then the alpha tag for the channel
Repeat a and b for each channel in the system.
Note:EDACS SCAT systems use only one channel.
Once you complete channel programming, see “Programming Talkgroups.”
Setting EDACS Emergency Alert
When the emergency status is sent on an EDACS radio, you can have your scanner alert
you to the transmission.
2:SCAN  OPTION →2:TRUNK →Select the bank→0:EMERGENCY  ALT
1:ON
The scanner beeps three times to alert you and flashes EMERGENCY during
emergency transmissions.
2:OFF
The scanner does not handle emergency transmissions any differently than other
transmissions.
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							Setting EDACS Decimal Mode
By default your scanner displays EDACS talkgroups in AFS format (see “Understanding
Scanning”). However, you can use this option to display and enter talkgroups in digital
format.
2:SCAN  OPTION →2:TRUNK →Select the bank→:EDCS  ID  FORM
1:AFS
Display the talkgroup ID in Agency-Fleet-Subfleet (AFS) format.
2:DECIMAL
Display the talkgroup ID in decimal format.
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Programming APCO 25 Systems
To program an APCO 25 system, follow the steps in the appropriate section for conventional
or Motorola Trunking. APCO 25 systems require only 1 additional setting: Sound Quality.
Setting APCO 25 Sound Quality
Each APCO 25 system has slightly different system settings that control how the audio is
digitized. To get the best sound quality, you need to match as closely as possible the
system’s settings.
To adjust the sound quality:
1. While monitoring a specific APCO P-25 talkgroup, press the 
/HOLD key.
2. Press and hold the 
9key. On Line 1 of the screen you will see SOUND  QULTY:
0050
(for example). This shows the Sound Quality. The lower the level the better the
Sound Quality. 
3. To manually set the sound quality, rotate the scroll bar up or down. As the threshold
adjusts in increments of 100 at the bottom of the screen watch the Sound Quality level
increase or decrease and continue to rotate the 
VFO until you have achieved the best
Sound Quality level.
Notes:•When APCO P-25 signal is not received, SOUND  QULTY:  ****appears
on the display.
•You must be receiving an APCO P-25 signal to make this adjustment
A chart showing the Threshold Adjustment Range is listed below.
4. Once you have adjusted the Sound Quality to the best possible level, press 
E.
Press 
RSM to exit the Sound Quality Adjustment Mode.
Notes:•To cancel the adjusted threshold level, press  key.
•The adjusted threshold level for the current frequency can be set back to the
default value by pressing and holding the  key.
•When you change the Sound Quality it affects all other APCO 25 signals in that
same band. (UHF, VHF, or 800MHz).
.
.
Lower Mid UpperBandMin Default Max Default Min Default Max800MHz 33 533 1833 1985 2042 3342 3842UHF 33 633 1833 1985 2042 3342 3842VHF 330 930 2130 2147 2264 3464 4064 
						

							Programming LTR Systems
Follow the instructions in this section to program information for LTR trunking systems. For
more information about LTR systems, refer to “Understanding Scanning.”
2:SCAN  OPTION →2:TRUNK →Enter the bank→1:TRUNK  TYPE →
1:ON →9:LT →2:TRUNK  CHANNEL
1. Enter the channel number.
1:FREQUENCY
2. Enter the frequency and alpha tag for the channel.
Repeat these steps for all channels in the system. Then, refer to “Programming
Talkgroups.”
Note:LTR systems must be programmed in channel order, skipping unused channels. For
example, if the LTR system you are programming uses only Channels 1, 3, 5, and 7,
program frequencies in the first, third, fifth, and seventh channels in the bank.
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							Programming Talkgroups
For many of the trunk scanning features to operate, you need to program the scanner with
the talkgroup ID’s. Each bank can store up to 100 talkgroups in 10 ID groups of 10
talkgroups each. Group similar talkgroups together in the same ID group. When scanning,
you can turn ID groups on and off with a quick keypress.
Storing Known Talkgroups
Follow these steps to store talkgroups you have gotten from a list.
2:SCAN  OPTION →2:TRUNK →Select the bank→3:TALK  GROUP
1. Use the scroll bar to select the talkgroup to program, then press E.
2. Select 1:ID and press 
E.
3.
For Type 2/Digital systems, enter the up to 5-digit talkgroup ID, then press E.
For Type I systems, enter the 3-digit fleet,  for the dash, then the subfleet number.
For EDACS systems, enter the two-digit agency,  for the dash, then the fleet and
subfleet number.
For LTR systems, enter the area code,  , home repeater number,  , ID number,
then 
E.
Note:If you replace an existing ID, the alpha tag is also deleted.
4. Select 2:ALPHA TAG and press 
E.
5. Enter the alpha tag for the talkgroup.
Note:The alpha tag defaults to the numeric talkgroup ID.
6. If you want the scanner to beep three times to alert you when the talkgroup is active,
select 3:BEEP ALERT and press 
E; then, select 1:ON.
7. Press 
MENU.
Repeat this procedure for each talkgroup in the system.
Storing Found Talkgroups
While you are ID Searching (see “Searching for Active Talkgroups”), you can quickly store
an active talkgroup ID into an ID memory.
1. While the scanner is receiving the talkgroup, press 
/HOLDto hold on that talkgroup.
2. Press 
TRNFR. The scanner displays the lowest numbered empty ID group memory.
3. Use the scroll bar to select the memory you want to store the ID into, then press 
E.
..
.
.
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							Deleting Stored Talkgroup ID’s
To delete a stored talkgroup ID:
1. While scanning a trunked system in the ID scan mode (see “Scanning Only Stored
Talkgroups”), press 
/HOLD. 
Or, to use the menu system:
2:SCAN  OPTION →2:TRUNK →Select the bank→3:TALK  GROUP
2. Use the scroll bar to select the talkgroup ID you want to delete, then press E.
3. Select 1:ID and press 
E.
4. Press 
0, then press E.
Adding a Text Tag to an ID List
To add a text tag to each of the 10 ID lists in each bank:
2:SCAN  OPTION →2:TRUNK →Select the bank→6:ID  LIST  TAG →
Select the list→Enter the alpha tag
Seeing Talkgroup Activity
In the ID Scan mode, the scanner normally only displays the ID for talkgroups that you have
stored into a scan list. This setting lets you see the ID’s for all talkgroups as they become
active when the scanner is monitoring the control channel. The scanner still only switches to
a talkgroup if you have stored it into a scan list.
2:SCAN  OPTION →2:TRUNK →Select the bank→8:ACTIVITY  ID
1:ON
Display every talkgroup ID as it becomes active.
2:OFF
Only display active stored talkgroup ID’s.
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