Uniden Bc780xlt Trunk Tracker Scanner Owners Manual

							23 1. After programming frequencies, simply press 
SCANto
begin scanning.
2. The bank indicators selected for scanning appear in the display, and the bank being
currently monitored flashes. You can deselect banks from active scanning by pressing
their number on your keypad. The indicator for each deselected bank turns off, and the
banks channels are not scanned.
Note: One Bank must always be active. You cannot deactivate all ten banks at the same
time. If you try to turn off all the banks, the first bank is automatically selected.
To restore a bank to active scanning, press the banks number on your keypad.
The banks indicator will display again.
3. During normal scanning the scanner skips
unprogrammed or locked out channels.
4. When a transmission is received, the scanner stops
on that channel. When the transmission ends,
scanning resumes automatically.
If you want to stop on a channel during scanning,
press 
MAN.
If you want to resume scanning, 
press 
SCAN.
To directly access a specific channel:
There are several ways to access a specific channel quickly.
1. Press 
MAN.
2. Using the keypad, enter the channel number.
3. Press 
MANagain.
Another method is as follows:
1. Press the VFOcontrol until 
CHANis displayed.
2. Rotate the VFOcontrol until the desired channel is
displayed. The scanner will automatically go to
manual mode.
Note: You can accidentally change the frequency if you don’t
verify that 
CHANis displayed. If FREQis displayed, you
will be changing the frequency when you rotate the 
VFOcontrol. Just don’t press 
E or it will be changed!
Scanning
13459   10267    8CHANNELS
Frequency 
not entered Frequency
Locked Out
(L/O)
SCAN
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							24 Still another method of direct access to a specific channel:
1 Press 
MAN.
2 Press s or tto select the channel. (or press and hold sor tto scroll more quickly.)
Lastly to step up through the channels one at a time, repeatedly press 
MAN.
RF Attenuation Feature
The BC 780XLT comes with an RF Attenuation feature. If youre near an unusually strong
signal source, the signal may overload the scanner. The scanner may stop repeatedly on
that signal and miss other transmissions.
The RF Attenuation feature works in all modes and attenuates (reduces) the incoming signal
strength to prevent stronger signals from overloading the scanner.
The RF attenuation is set at the menu mode.
1. Press 
MENU.
2. For Search mode, press sor tto select SEARCH
EVENTand then press 
E.
OR
For Scan mode, press sor tto select CH DATA
and then press 
E. Then you must enter your channel
data by pressing s, tor direct keypad entry. Then
press 
E.
3. Press sor tto select ATTENUATORand then
press 
E.
4. Set to ONusing sor tand then press 
E.
ATTappears on the display.
+ Remember!You can also use the VFOcontrol for scrolling. Also instead of pressing
E, you can press the VFO/SELECTcontrol or press the SELECT/MUTEkey.
Note: Attenuation will only be active for the specified channel. In SEARCH mode, it is applied
to the search ranges in all banks.
Setting the Delay Mode
A default delay of 2 seconds is automatically set for each frequency or talkgroup. A different
delay can be set for each programmed channel so that when scan or search stops on a
channel there is a brief pause before the scanning cycle resumes. To set the delay feature,
enter into the menu mode.
1. Press 
MENU.
2. Press sor tto select C H DATAand then press 
E.
3. Select the channel number to be delayed using sor tand
then press 
E.
4. Press sor tto select DELAYand then press 
E.
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							25 5. Press sor tto select one of the delay periods
provided and then press 
E.DLYappears on the
display unless no delay has been set.
6. For Search mode, select SEARCH EVENT - DELAY, then set the delay period.
Note: The delay periods are as follows:
• None: Delay feature off
• 1 sec.: Delays for 1 sec. before re-scanning
• 2 sec.: Delays for 2 sec. before re-scanning
• 4 sec.: Delays for 4 sec. before re-scanning
• Infinite: Stays on until SCAN is pressed
• -2 sec.: Stays for 2 sec. only before re-scanning *
• -5 sec.: Stays for 5 sec. only before re-scanning *
• -10 sec.: Stays for 10 sec. only before re-scanning *
*Setting negative delay periods are useful if you are only interested in small 
segments of conversations. For example: If you set a -5 second delay, you will only 
hear 5 seconds of the conversation and then the scanner will resume scanning, 
whether or not the conversation is finished.
Channel Lockout
You can lockout any channel so it is not checked during normal scanning. You can restore the
channel to scanning when you wish.
Lockout in Manual Mode
1. Press 
MAN.
2. Select a channel.
Enter the channel numbers.
Press 
MANagain.
––– OR –––
Press 
MANor HOLD/sto change higher, 
or 
LIMIT/tto lower the channel.
3. Press 
L/Oto lockout the channel.
L/Oappears in the display.
Lockout in Scanning Mode
If the scanner keeps stopping on a particular channel due to noise or too frequent
transmissions, you may want to keep that channel from scanning.
1. Wait until the scanner stops at the channel.
2. Then press 
L/O.
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							26 3 . The scanner immediately resumes scanning because the
locked out channel is no longer in the scanning sequence.
Lockout Tips • Write down your locked-out channels and put in a convenient place in 
case you need to restore them.
Restoring a Locked-out Channel
1. Press MAN.
2. Select a locked out channel.
a. Enter the channel number.
b. Then press 
MANagain.
3. Press 
L/Oto unlock the channel. The L/Oicon goes out.
Restoring All Locked-out Channels
You can restore all locked-out channels in a bank only when a bank is selected for scan. If
you have deselected a bank and you want to restore all of its locked-out channels using the
steps below, you must press 
SCANand then press the number of the bank on your keypad.
1. Press 
MAN.
Note: You must be in Manual mode before restoring all
locked-out channels.
2. Press and hold 
L/Ofor about two seconds.
You will hear two beeps when all the channels have
been restored.
Priority Scan
When Priority Scan is turned on, your scanner checks the priority channel every two
seconds for activity. If a signal is present on the priority channel, your scanner monitors the
channel until the transmission ends, then resumes normal scanning. You can designate one
channel in each bank as a Priority Channel. By default, the first channel in each bank is the
priority channel, but you can change this.
To activate Priority Scan (in either the Manual or Scan Mode):
1. Press 
PRI.
Note: If you have locked out the priority channel, 
ERROR
message appears when you select Priority mode.
2. Press 
PRIagain at anytime to deactivate Priority Scan.
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							27
Changing the Priority Channel
You cannot eliminate the Priority Channel, but you can change it to any one of the 50
available channels in each bank.
1. Press 
MAN.
2. To select a new Priority Channel:
a. Enter the channel number.
b. Then press 
MANagain.
3. Press and hold 
PRIfor two seconds to designate this
channel as your new Priority Channel.
Two beeps indicate that the Priority 
channel has been changed. The 
Picon appears in
the display.
Note: • Priority in Trunking mode works just the same, except instead of setting priorities for
channels, you set them for talkgroup IDs. The scanner only checks priority
talkgroups between transmission, not in 2 second intervals.
• Priority scan is disabled while the 
TRUNKicon is lit (an error tone will sound 
if you try). To make it possible, turn off the 
TRUNKicon then press PRI.
• At Priority scan, it scans the designated Priority Channels in the banks 
you selected.
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							28
Setting a Search Range
Note:First you must set the search ranges through the menu screen prior to any searching.
The BC780XLT can search up to 10 separate frequency ranges to help you discover new
stations in your area.
To set a search range, enter into the menu mode.
1. Press 
MENU.
2. Press s or tto select SEARCH EVENTand then press 
E.
3. Press s or tto select SEARCH BANKand then press 
E.
4. Press s or tto select the desired bank number and then press 
E.
5. Press s or tto select EDIT RANGEand then press 
E.
6. Enter the lowest frequency using the keypad and 
then press 
E, then repeat the same for the 
highest frequency.
Then press 
SRCH.
Note: • The scanner can search up to 10 ranges by selecting specific banks which you
have programmed search ranges. (Chain Search)
• You can select or deselect the search bank freely by pressing the corresponding
number with the keypad.
• The scanner automatically increases its search speed from 100 to 300 steps per
second for the bands having 5 kHz steps. (Turbo Search)
• Press and hold sor tfor more than 2 seconds while searching to switch the
search direction.
• When searching in WFM, it stops before reaching the desired frequency if the step
is other than 50 kHz or 100 kHz.
• After you have set the Search Range through the Menu the first time for a bank,
you will be able to set new ranges for the same bank by using the keypad and the
standard direct entry method.
Note: After you have entered the search range in a selected bank while still in the menu
mode, you can set your alpha tag (see page 21), change the step size of the search,
or change the mode. Once the lower and upper parameters of your search are edited,
the menu screen backs up one level to allow you to modify the step size, receive
mode, and alpha tag. Select 2: STEPSfor your step size choices and then 
press 
E. Select 3: MODEfor the receiver mode choices and then press E. Select 
4: ALPHA TAGto enter an alpha tag using the VFOcontrol.
Searching
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							29
Search Hold Feature
1. Press HOLD/sat anytime to stop the search.
2. Press 
HOLD/sto move to the next higher frequency.
––– OR –––
Press 
LIMIT/tto move down to the previous frequency.
3. Press 
SRCHto resume searching.
Data Skip
A scanner will normally stop on any transmission it receives. This means the BC780XLT will
occasionally stop on data signals and unmodulated transmissions. You can automatically
skip many of these types of transmissions during search. To activate the data skip feature,
enter into the menu mode.
1. Press 
MENU.
2. Press s or tto select SYSTEM DATAand then press 
E.
3. Press s or tto select DATA SKIPand then press 
E.
4. Set to ONusing s, tor VFOand then press 
E.
DATAappears on the display.
When data skip is active, your scanner may pause momentarily on an unwanted signal but
will resume searching in 2 or 3 seconds. Data Skip does not function during AM/WFM band
scan, chain search, or WX search, Priority Scan, and Trunking Mode.
Frequency Skip
If a particular frequency continues to interrupt search scanning, it is possible to set your
scanner to skip the frequency.
To skip over a frequency, press 
L/Owhen stopping at the frequency you want 
to skip.
Note: • You can program up to 200 skip frequencies.
The 201st skip frequency entered causes the
first skipped frequency to unlock.
• If all frequencies in the search range are set to
skip, it moves to Search hold mode.
To resume searching, do as follows:
1) Cancel the frequency skip set, or
2) Reset the search frequency range.
To cancel all skipped frequencies, press and hold 
L/Ofor 2 seconds.
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							30
Storing Search Frequencies
You can quickly store any frequency you find during Search.
Caution: You must select the channel in which you will store the frequency before entering
the search mode. Otherwise, you may erase a stored frequency that you want 
to keep.
1. During search, press 
HOLD/swhen the scanner
stops at the frequency you want to store.
2. Press 
Eto store the frequency in the channel you selected.
Note: • If the frequency you want to store exists already, 
WARNINGappears on the display
with a beep. (See Duplicate Frequency Alert on page 21.)
• After storing the frequency, it moves to the manual mode.
3. To store another frequency, select another channel for the new frequency by pressing
MANor HOLD/sor LIMIT/t.
4. Repeat steps 1 and 2 after starting search for all the Search frequencies you want 
to store.
Auto Storing
The scanner automatically stores searched frequencies if its auto store feature is activated.
To make use of this feature, set a search range first (see page 28), then enter into the menu mode.
1. Press 
MENU.
2. Press s or tto select SEARCH EVENTand then press 
E.
3. Press s or tto select AUTO STOREand then press 
E.
4. Set to ONusing s, tor VFOand pressing 
E. All
bank numbers start flashing and AUTOis lit on 
the display.
5. Select the bank numbers you want to use with the
keypad. The selected bank numbers stop flashing.
Note: If the selected bank has no free channels to store,
ERRORwill appear on the display with a beep.
6. Press 
SRCHto start auto storing.The AUTOicon on the display
begins to flash. Audio is muted during the storing process.
7. After the search has gone through the search
range, press 
MANor MENU to stop this feature.
STORE ENDappears in the display. You may
want to let it run through the search range
again because during the first pass there 
may not be any transmissions at that 
particular time.
+ Remember! You can also use the VFOcontrol for scrolling. Also instead of pressing
E, you can press the VFO/SELECTcontrol or press the SELECT/MUTEkey.
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							31
Squelch (SQ) Mode
The scanner can be set to the following SQ modes.
• Carrier SQ mode (default setting)
The scanner will stop on any transmission or squelch opening, regardless of whether any
sub-audible tone has been programmed for the channel or search range.
• Tone SQ mode
The scanner will stop on any active frequency for which either no sub-audible tone has
been programmed or for which the user-programmed sub-audible tone is also active.
• Tone Search mode
During any transmission, the scanner will begin searching all possible sub-audible tones,
one of which may also be in use. The scanner counts up through the CTCSS tones and
instantly determines any possible DCS tone. See Page 83 for a listing of the tones that the
BC780XLT decodes.
Note: When Tone Search is active in Scan Mode, once the CTCSS/DCS display flashes a
tone repeatedly (meaning that it has found the tone match), you can press 
Eto
program that frequency with the captured tone. When you change the mode to Tone
Squelch from Tone Search, that frequency and tone will be programmed.
• Tone Lock (out) mode
For either a memory channel or a search range, you can lock a particular sub-audible tone
by pressing 
L/Oafter scrolling to the desired tone. The scanner will stop on any
transmission except those which may be using the locked sub-audible.
To set your scanner, enter into the menu mode.
1. Press 
MENU.
2. Press s or tto select SYSTEM DATAand then press 
E.
3. Press s or tto select SQ MODEand then press 
E.
4. Press s or tto select one type (CSQ, Tone SQ, Tone Search) and then press 
E.
5. To set Tone Lock mode, do the following first, then select Tone SQ in step 4.
1) For scan mode, enter CH DATA- CH No.- TONE DATA, select CTCSS/DCS with
sor t, set Tone Lock ON by pressing 
L/O.
2) For search mode, enter SEARCH EVENT- TONE DATA, select CTCSS/DCS with
sor t, set Tone Lock ON by pressing 
L/O.
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							32 Note: • CTCSS: Continuous Tone Coded Squelch System.
• DCS: Digital Coded Squelch.
• For example, the scanner shows the following displays.
• If the delay feature (-2 sec/-5 sec/-10 sec) has been set while in Tone search mode,
it resumes scanning according to the delay setting.
Additional Menu Options for Searching
Each of these additional menu options apply to all banks with search ranges entered. If there
is a bank that you do not want an option to apply, then simply press the bank number on the
numerical keypad. You will see the bank number that you have selected, disappears from 
the display. (For more information on these options refer to the “Menu Descriptions” section
and “Additional Features” section.
Options:
RECORD(for more information see page 11)
1. Press 
MENU.
2. Press s or tto select SEARCH EVENTand then press 
E.
3. Press s or tto select RECORDand then press 
E.
4. Set to ONusing s, tor VFOand pressing 
E.
LINEis lit on the display.
ATTENUATOR(for more information see page 24)
1. Press 
MENU.
2. Press s or tto select SEARCH EVENTand then press 
E.
3. Press s or tto select ATTENUATORand then press 
E.
4. Set to ONusing s, tor VFOand pressing 
E.
AT Tis lit on the display.
DELAY
Refer to page 24.
Tone SQ on, 
CTCSS 123.0 Hz set
Tone Search, 
CTCSS 67.0 Hz detectedTone Search, 
DCS 023 detectedTone Search, 
no signal present Tone SQ on, 
DCS 325 setTone SQ on, 
No CTCSS & DCS set
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