Uniden Bc 248clt Vhf Uhf Scanner Reference Manual

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Initial Clock Set-up
1. When power is initially applied, the   
display flashes 
12:00 Pafter a
short delay.
2. Enter the time directly by        
pressing the numeric keys.
OR
Enter the time by pressing the
/keys. To scroll through
more quickly, press and hold
/.
3. Press AM/PMto select the desired setting,          
either a.m. or p.m.
4. Press Eto complete the entry. The display           
stops flashing.
You may bypass the steps to set the clock. The scanner will function as
normal, but the clock and alarm features will not function.
CLOCK SET-UP
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							Set the Squelch
1. Turn SQUELCHfully clockwise to       
the highest setting.
2. Press SCANNERto turn on the scanner.              
3. Adjust the VOLUME control until you             
can hear a steady noise.
USING THE SCANNER
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4. To set the SQUELCHcontrol to AUTOturn fully counterclockwise until control clicks into
place. Or, manually set squelch as follows:
Think of squelch as a gate. Turn SQUELCHfully counter clockwise. This raises the
“Squelch Gate” so high that only very strong signals can get through.
Turn SQUELCHfully clockwise until you hear a hiss. This lowers the “Squelch Gate”
so that everything gets through — noise, weak signals, and strong signals.
Turn SQUELCHback counter clockwise until the hiss stops. Now the “Squelch Gate”
allows only strong signals through.
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5. The scanner automatically starts scanning. 
But if you have not programmed any
channels yet, press WXto hear your local 
weather broadcast.
6. Adjust VOLUMEto a comfortable 
listening level.
Programming Tips for Scanner
Program one frequency per channel.Channel 1 is the location of the default priority channel. Program the most important
frequency, or the one of major interest, into Channel 1. You may also select any other
channel to be the priority channel. 
To quickly program a series of channels, start with the lowest number channel. For
example, when you are programming five new frequencies into Channels 4 through 8,
start with Channel 4. After you complete the programming in one channel (by pressing
E), press MANUALto step up to the next channel.
Channels are grouped by banks for easy scanning control. The channels associated with
the banks are as follows:
Bank NumberChannel Number
1 1  through 10
2 11 through 20
3 21 through 30
4 31 through 40
5 41 through 50
If you make an error during programming, or the frequency is out of range, Error
appears on the frequency display.If you program the same frequency in two channels, the display will indicate the
channel with the duplicate frequency. If you want to have two of the same frequencies
on different channels, accept the entry by pressing Eagain.
During numeric entry, if you know that you pressed the wrong number, 
press .(decimal point) until the entry is cancelled out. When the previous frequency is
displayed, you may re-enter the frequency.
Above 406MHz, the frequency steps are in 12.5kHz increments. To enter a frequency
such as 450.4875, press each of the seven digits in sequence.
If All Loc Outappears in the display, when you first turn the
scanner on, this indicates that all the channel information has been
manually erased. All channels are set to 0.0MHz. To clear this
message, program the frequency and channel information as desired.
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Programming Scanner Frequencies
Before you can use your BC248CLT scanner, you must program the channels (except weather
frequencies). Follow these steps:
Example:Program 420.150 MHz into Channel 12. 
1. Press MANUALto stop scanning.                    
2. To select the channel (12),   
press 1, then 2on the
numeric keypad. Then press
MANUALagain.
OR
Press 
/ until channel
12 appears in the display.
3. Type in the frequency numbers, including the        
decimal point, using the numeric keypad:
420.0150. Channel digits flash as you make entry.
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							4. Press Eto complete the entry. The channel .           
digits stop flashing.
Deleting a Scanner Frequency
If you want to delete a stored frequency, follow these steps:
Example:Delete the frequency in Channel 12. 
1. Press MANUALto stop scanning.                    
2. To select the channel (12),   
press 1, then 2on the
numeric keypad. Then press
MANUALagain.
OR
Press 
/ until channel
12 appears in the display.
3. Press0, then Eto complete the entry.          
The channel digits stop flashing.
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4. The following    
screen appears.
About Memory Back-up
Your BC248CLT has a convenient memory back-up system. In the event of a power failure, the
scanner will retain channel information for an indefinite amount of time. Channel
information is stored in non-volatile memory. 
Scanning Mode
Press SCAN. (When the scanner is first              
turned on, it is automatically in Scan mode.)
Scanning automatically stops on any active
channel, except those channels locked out. 
Bank Scanning
While scanning, you can select specific banks
to monitor. The bank numbers 1-5 appear in
the display as the active banks.
To deactivate a bank, press the bank number       
on the keypad. The bank number on the screen
goes out.
.
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							To restore the bank number, press the number  
on the keypad. The bank number appears in
the display.
.
The bank number associated with channel      
currently being monitored flashes.
Manual Mode
Press MANUALany time to stop scanning.         
The scanner remains on the displayed channel.
Press MANUALto step up to the next channel.
If desired, you can press MANUALrepeatedly to
manually scan all 50 channels, one press per
channel, including the channels that are locked
out. To scroll through the channels more quickly,
press and hold MANUAL. Press SCANto start
scanning again.
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Direct Channel Access for Scanner
This feature allows you to instantly access a specific channel you want to monitor.
Example:Select Channel 4.
1. PressMANUALto exit scan mode.                   
2. Press4.                                                               
3. Press MANUALagain to successfully complete the direct access to Channel 4.
Priority Scanning
Priority Scan works like a dual watch function. When you activate Priority Scan mode, the
scanner keeps track of the activity on the priority channel while listening to other channels. A
constant 
PRIappears on the display
Every two seconds, the scanner checks the priority channel for activity. If a signal is found, the
scanner remains on the priority channel until the transmission ends. If the signal stops for
more than two seconds, normal scan operation resumes.
Priority Scan mode does not operate when the scanner is in Weather
mode.
When you press 4, the display changes to 4, but the scanner still
monitors the previous channel.
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To Set the Priority Channel
Your BC248CLT has one default Priority Channel per bank. Each priority channel is, set at the
first channel in the bank. To change the priority channel determine the frequency most
important to you and program it into the desired channel location.
Example:To set Channel 5 as the priority channel.
1. Press MANUALto exit the Scan Mode.            
2. Press 5 and MANUALfor direct         
channel access. Or select channel 5
using the 
/ keys. 
3. Press and hold PRIORITY.                           
The 
PRIindicator appears in       
the display and Pappears to the
left of the selected channel.
To enter the Priority Scan Mode
When in Scan or Manual mode, press PRIORITY. The 
PRIindicator appears in the display.
To exit the Priority Scan Mode
Momentarily press PRIORITYagain. The 
PRIindicator goes out.
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