Uniden Bc 248clt Vhf Uhf Scanner Reference Manual

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4. Press Eto complete the entry.                           
5.ALARMindicator and     
time stop flashing, but
remain on.
6. The alarm time remains in the display for five seconds, then returns to current time.
Set Alarm to Tone Mode
Press ALARMto turn on the alarm     
function. The ALARMindicator and
current alarm time are displayed. 
When the alarm goes off, it will sound as a series of beeps gradually growing louder. 
The alarm will continue for approximately 15 minutes, if no action is taken. 
Snooze function
To silence the alarm, simply press any key. This silences the alarm for about nine minutes.
You can repeat this cycle for over an hour. Also the display is backlit for about ten seconds to
view the current time.
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Turn the Alarm Off
Press ALARMto deactivate the alarm 
function. When the alarm is off, the
ALARMindicator and current alarm
time are no longer displayed. Only the 
current time displays.
If you find the Tone Alarm too loud, select the Radio Mode instead.
The volume is adjustable.
If you would like to listen to the scanner while waking up,  turn the
scanner on. The snooze function continues to operate while the
scanner is turned on and in any mode.
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Set Alarm to Radio Mode
Before you set the Radio Alarm, make sure the AM or FM channel is selected and the VOLUME
control is set to the desired level.
The scanner must be turned off (Clock Mode), to be woken up by the radio alarm.
1. Press OFF.
2. Press and hold ALARMfor more      
than 2 seconds. When the alarm is
on, the ALARMand RADIOicons
flash for 5 seconds.
3. The ALARMremains on.
When the alarm goes off, it will play the radio station that was previously selected. The alarm will
continue for approximztely 15 minutes, if no action is taken.
Snooze function
To silence the alarm, simply press any key. This silences the alarm for about nine minutes. You can
repeat this cycle for over an hour.
Turn the Alarm Off
Press ALARMto turn the alarm off.         
When the alarm is off, the ALARMicon
and current alarm time are no longer
displayed, only the current time is
displayed.
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Helpful Hints
General UseTurn the scanner off before disconnecting the power.Always write down the programmed frequencies in the event of scanner memory loss.
If scanner memory is lost, simply reprogram each channel. The display shows All
Loc Out
when there has been a memory loss.Always press each keypad button firmly until you hear the entry tone for 
that key.
Location
If your scanner receives strong interference or electrical noise, relocate the scanner or its
antenna away from the source of the noise. A higher elevation may provide better
reception. Also, try changing the height or angle of
the antenna.
Avoid placing the unit in direct sunlight or near heating elements or vents.Do not plug the scanner into an outlet controlled by a wall switch as prolonged periods
without power will cause the clock to reset.
Cleaning
Disconnect the power to the unit before cleaning.To prevent scratches, do not use abrasive cleaners or solvents. Be careful not to rub the
display window.
Do not use excessive amounts of water.
Repairs
Do not attempt any repair. The scanner contains no serviceable parts. Contact the
Uniden Customer Service Center or take it to a qualified repair 
technician. (Page 33)
Birdies
All radios are subject to receiving undesired signals or birdies. If your scanner stops
during Scan mode and no sound is heard, it may be receiving a birdie. Birdies are
internally-generated signals inherent in the electronics of the receiver. PressSCANto
resume scanning.
If you still cannot get satisfactory results and want additional information, or to return the
unit for service, please call the Uniden Customers Service Division at the number on Page 33.
ABOUT THE UNIT
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ProblemSolution
Check the connections at both ends of the 
AC Adapter.
Turn on the wall switch of your room.
You could be using an outlet controlled by the
wall switch.
Move the AC Adapter to another wall outlet.
Scanner won’t power up.
Poor reception.Check antenna connection.
Move the antenna.
If the programmed frequency is higher than 
406MHz, a shorter antenna length may improve 
the reception.
Relocate the scanner.
You may be in a fringe area. This could require 
an optional multi-band antenna. Check with your 
dealer or local electronics store.
Scan won’t start.Press the SCANkey again.
Adjust the Squelch control.
Check to see if 50 channels are locked out. If so, 
unlock the channels as needed.
If your BC248CLT is not performing properly, try the following steps. 
TROUBLESHOOTING
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ProblemSolution
Scan won’t stop.Adjust squelch to the threshold (Page 9).
Check the antenna connection.
Check to see if many of the channels are locked 
out. If so, the scanner has less chance of finding 
an active channel.
Review each channel’s frequency to see if it is 
correct and no memory has been lost.
It is possible that none of the programmed 
frequencies are active at this time.
Weather Scan 
won’t work.Adjust squelch to the threshold (Page 9).
Check the antenna connection.
It is possible that there are no active stations 
within range.
At Uniden, we’ll take care of you!
If you need any assistance with this product, please call our Customer Hotline at:
1-800-297-1023
PLEASE DO NOT RETURN THIS PRODUCT TO THE PLACE OF PURCHASE.
Our Uniden representatives will be happy to help you with any matters regarding the operation of this
unit, available accessories, or any other related matters.
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Certified in accordance with FCC Rules and Regulations Part 15 Sub-part C as of date of
manufacture.
Band Coverage:10 bands plus Weather Channel and AM/FM Radio
Frequency Coverage: Scanner 29.0-29.7 MHz 10 Meter Amateur Band
29.7-50.0 MHz Low Band
50.0-54.0 MHz 6 Meter Amateur Band
137-144 MHz Military Land Mobile
144-148 MHz 2 Meter Amateur Band
148-174 MHz VHF High Band 
Above bands in 5 kHz steps
406-420 MHz Federal Government
420-450 MHz 70cm Amateur Band
450-470 MHz UHF Standard Band
470-512 MHz UHF”T” Band
Above bands in 12.5kHz steps
Radio 520 to 1720 KHz (AM Radio Band)
88 to 108 MHz (FM Radio Band)
Weather Service Channel162.400/162.425/162.450/162.475/162.500/
162.525/162.550MHz
Sensitivity (nominal) 0.3 µV 30-50 MHz
12dB SINAD: 0.4 µV 137-174 MHz
0.6 µV 406-512 MHz
Channels: 50
Scan Rate: Up to 12 channels per second
Audio Output (nominal): 0.75 W to 0.85 W 10%THD
Power Requirements: 120V AC (±10%) 60Hz
Antenna: Telescoping (included), AM Radio Loop Antenna
External Jacks: Antenna jack
AM Radio Antenna Jack
External speaker
AC 10V power jack
AC/AC Adapter (AC-144U)
Speaker: 8 ohm, 2 watt
Operating Temp: -10°C — +50°C
Storage Temp: -20°C — +60°C
Size: 205 (W) x 139 (D) x 73 (H)mm
Weight: 1 lb. 6 oz. (without antenna)
Features, specifications, and availability of optional accessories are all subject to change
without notice.
TECHNICAL SPECIFICATIONS
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WARRANTOR:UNIDEN AMERICA CORPORATION (“Uniden”)
ELEMENTS OF WARRANTY: Uniden warrants, for one year, to the original retail owner,
this Uniden Product to be free from defects in materials and craftsmanship with only the
limitations or exclusions set out below.
WARRANTY DURATION:This warranty to the original user shall terminate and be of no
further effect one year after the date of original retail sale. The warranty is invalid if the
Product is (A) damaged or not maintained as reasonable or necessary, (B) modified,
altered, or used as part of any conversion kits, subassemblies, or any configurations not
sold by Uniden, (C) improperly installed, (D) serviced or repaired by someone other
than an authorized Uniden service center for a defect or malfunction covered by this
warranty, (E) used in any conjunction with equipment or parts or as part of any system
not manufactured by Uniden, or (F) installed or programmed by anyone other than as
detailed by the owner’s manual for this product.
STATEMENT OF REMEDY: In the event that the product does not conform to this
warranty at any time while this warranty is in effect, warrantor will either, at its option,
repair or replace the defective unit and return it to you without charge for parts, service,
or any other cost (except shipping and handling) incurred by warrantor or its
representatives in connection with the performance of this warranty. Warrantor, at its
option, may replace the unit with a new or refurbished unit. THE LIMITED WARRANTY
SET FORTH ABOVE IS THE SOLE AND ENTIRE WARRANTY PERTAINING TO THE
PRODUCT AND IS IN LIEU OF AND EXCLUDES ALL OTHER WARRANTIES OF ANY
NATURE WHATSOEVER, WHETHER EXPRESS, IMPLIED OR ARISING BY OPERATION
OF LAW, INCLUDING, BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. THIS WARRANTY
DOES NOT COVER OR PROVIDE FOR THE REIMBURSEMENT OR PAYMENT OF
INCIDENTAL OR CONSEQUENTIAL DAMAGES. Some states do not allow this exclusion
or limitation of incidental or consequential damages so the above limitation or exclusion
may not apply to you.
LEGAL REMEDIES:This warranty gives you specific legal rights, and you may also have
other rights which vary from state to state. This warranty is void outside the United
States of America.
PROCEDURE FOR OBTAINING PERFORMANCE OF WARRANTY: If, after following the
instructions in the owner’s manual you are certain that the Product is defective, pack the
Product carefully (preferably in its original packaging). The Product should include all
parts and accessories originally packaged with the Product. Include evidence of original
purchase and a note describing the defect that has caused you to return it. The Product
should be shipped freight prepaid, by traceable means, to warrantor at:
Uniden America Corporation
Parts and Service Division
4700 Amon Carter Blvd
Fort Worth, TX 76155
(800) 297-1023, 8 a.m. to 5 p.m., Central Time, Monday through Friday
ONE-YEAR EXTENDED WARRANTY
Important:  Evidence of original purchase is required for 
warranty service.
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