Uniden BC 248CLT Reference Manual
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Uniden BC 248CLT Reference Manual

10 band, 50 channel scanner
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BC 248CLT
1 0 B A N D , 5 0 C H A N N E L S C A N N E R
• FULLY PROGRAMMABLE
• FULL FREQUENCY LCD READOUT
• ALARM CLOCK
• AM/FM RADIO
• ONE TOUCH WEATHER
• CHANNEL LOCKOUT
• PRIORITY CHANNEL
• SCAN DELAY
• MEMORY BACKUP
• EMERGENCY WEATHER ALERT
Reference Guide

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Summary of Contents for Uniden BC 248CLT

  • Page 1 BC 248CLT 1 0 B A N D , 5 0 C H A N N E L S C A N N E R • FULLY PROGRAMMABLE • FULL FREQUENCY LCD READOUT • ALARM CLOCK • AM/FM RADIO • ONE TOUCH WEATHER •...
  • Page 2 Changes or modifications to this product not expressly approved by Uniden, or operation of this product in any way other than as detailed by this Reference Guide, could void your authority to operate this product. The installation, possession, or use of this scanning radio in a motor vehicle may be prohibited, regulated, or require a permit in certain states, cities, and/or local jurisdiction.

  • Page 3: Table Of Contents

    Getting Started ......... . . 3 Installing the BC248CLT .

  • Page 4: Introduction

    Unlike standard AM or FM radio stations, most 2-way communications do not transmit continuously (see Types of Communication below). The BC248CLT scans programmed channels at rate of up to 12 channels per second until it locates an active frequency. When the scanning stops on an active frequency, it remains on that channel as long as the transmission continues.

  • Page 5: Taking Proper Care Of Your Scanner

    AM/FM radio You must program a frequency into each channel you want to use. If you do not have any known local frequencies to program, a Uniden representative should be able to provide you with a few sample frequencies. Where to Obtain More Information The Bearcat Radio Club and other similar hobby clubs have publications, information on computer bulletin boards, and contests for the radio enthusiast.

  • Page 6: Getting Started

    GETTING STARTED Installing the BC248CLT AC 10V USE AC-144U ONLY EXT.SP 1. Insert the small plug at the end of the AC Adapter cord into the AC 10V jack on the scanner. 2. Plug the AC Adapter into any standard 120V AC wall outlet. Do not plug into an outlet controlled by a wall switch;...

  • Page 7: Operation

    OPERATION Controls and Functions 12 15 19 20 13 16 18 21 19 17 14 1. LCD Display Displays time, channel, frequency, and functions. (Page 6) 2. Numeric Keys Press to program a frequency into each channel for scanning. Also, press for time entries and direct channel access with MANUAL key.
  • Page 8 10. WX/ALERT Key Selects Weather Mode. Also Selects Weather Alert ON/OFF. 11. ALARM Key Turns the Tone Alarm. Turns the Radio Alarm ON/OFF by pressing the key more than 2 seconds. 12. ALARM SET Key Press more than 2 seconds to enter the Alarm Time Set mode. 13.
  • Page 9 22. ALARM Appears when Alarm function is active. Flashes in the snooze function mode. 23. BANK Appears when in Scan Mode, Manual Mode and Weather Mode. 24. 1-5 In Scan Mode, displays the bank being scanned. In Manual Mode, displays the bank number associated with the channel.

  • Page 10: Scanning Overview

    Scanning Overview The BC248CLT has 50 memory channels. Each can be programmed to store one frequency within the band of frequency coverage. (For a listing of frequency ranges and bands, see Technical Specifications on page 28.) When you press SCAN, the BC248CLT scans each programmed frequency for activity (skipping channels that are locked out) at the rate of about 12 channels per second.

  • Page 11: Clock Set-Up

    CLOCK SET-UP Initial Clock Set-up You may bypass the steps to set the clock. The scanner will function as normal, but the clock and alarm features will not function. 1. When power is initially applied, the display flashes 12:00 P after a short delay.

  • Page 12: Using The Scanner

    USING THE SCANNER Set the Squelch 1. Turn SQUELCH fully clockwise to the highest setting. 2. Press SCANNER to turn on the scanner. 3. Adjust the VOLUME control until you can hear a steady noise.
  • Page 13 4. To set the SQUELCH control to AUTO turn fully counterclockwise until control clicks into place. Or, manually set squelch as follows: Think of squelch as a gate. Turn SQUELCH fully counter clockwise. This raises the “Squelch Gate” so high that only very strong signals can get through. Turn SQUELCH fully clockwise until you hear a hiss.

  • Page 14: Programming Tips For Scanner

    5. The scanner automatically starts scanning. But if you have not programmed any channels yet, press WX to hear your local weather broadcast. 6. Adjust VOLUME to a comfortable listening level. Programming Tips for Scanner Program one frequency per channel. Channel 1 is the location of the default priority channel.

  • Page 15: Programming Scanner Frequencies

    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 MANUAL to stop scanning. 2. To select the channel (12), press 1, then 2 on the numeric keypad.

  • Page 16: Deleting A Scanner Frequency

    4. Press E to 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 MANUAL to stop scanning. 2.

  • Page 17: About Memory Back-Up

    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.

  • Page 18: Manual Mode

    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 MANUAL any time to stop scanning. The scanner remains on the displayed channel. Press MANUAL to step up to the next channel.

  • Page 19: Direct Channel Access For Scanner

    Direct Channel Access for Scanner This feature allows you to instantly access a specific channel you want to monitor. Example: Select Channel 4. 1. Press MANUAL to exit scan mode. 2. Press 4. When you press 4, the display changes to 4, but the scanner still monitors the previous channel.
  • Page 20 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.

  • Page 21: Channel Lockout

    Channel Lockout You can lock out a channel so it is not scanned. Channel Lockout does not erase the frequency from the channel. You can lock out up to 50 channels, including the Priority channel. Lockout information is retained in the memory when the scanner is turned off. To Lock out a Channel Example: Suppose you want to lock out Channel 2 because it stops on transmissions you don't want to hear.

  • Page 22: Restore All Locked Out Channel

    2. Press LOCKOUT again to unlock the displayed channel. L/O no longer appears in the display. Restore All Locked Out Channel To unlock all channels, you must be in the Manual Mode. 1. Press MANUAL. 2. Press and hold LOCKOUT to unlock all channels.

  • Page 23: To Set Delay In Scan Mode

    To Set Delay in Scan Mode 1. Press SCAN. 2. When your scanner stops on a channel, press DELAY. DLY appears in the display and scanning resume 2 seconds after the transmission ends. To Set Delay in Manual Mode 1. Press MANUAL. 2.

  • Page 24: Weather Channel

    Weather Channel The BC248CLT allows you to search from 7 pre-programmed NOAA channels for your local NOAA weather channel. Press WX/ALERT to find the active weather channel in your area. WX icon appears in the display. It is possible that your area is covered by more than one weather station.

  • Page 25: Weather Alert

    Weather Alert In Weather Alert Mode, your scanner functions as a severe weather warning radio. This is especially useful when your area is expecting severe weather conditions late at night. When you set the scanner to Weather Alert Mode, it emits a loud siren whenever your local NOAA weather station broadcasts a severe weather emergency tone.

  • Page 26: Additional Features

    ADDITIONAL FEATURES LCD Backlight The LCD Backlight comes on when the power is applied. In Scan Mode, Manual Mode, and Weather Mode, the backlight stays on bright continuously. In the other modes, the backlight stays bright for ten seconds and then switches to dim. Press any key and the display switches back to bright for ten seconds.
  • Page 27 3. Press to set the desired frequency. The channel number flashes. Continue to press to step through the frequencies in 100kHz steps. Or, press and hold to step through the frequencies more quickly until 92.5000MHz appears in the display. 4. Press E to complete the entry. The channel digits stop flashing.

  • Page 28: Deleting A Stored Radio Frequency

    Deleting a Stored Radio Frequency If you want to delete a stored frequency, follow these steps: Example: Delete the frequency in Channel 9. 1. Press RADIO AM/FM to enter into the Radio Mode. 2. To select the channel (9), press 9 on the numeric keypad.

  • Page 29: Resest The Clock Time

    Reset the Clock Time 1. After the scanner has been turned on, to reset the clock time simply press and hold the TIME SET key. The display digits flash. 2. Enter the time directly by pressing the numeric keys. Enter the time by pressing the keys.

  • Page 30: Set The Alarm Time

    Set the Alarm Time There are two types of alarm sounds with this scanner., Tone Alarm and Radio Alarm. Both types set the alarm time in the same manner. 1. After the clock time has been entered, press and hold ALARM SET until the time indicated and ALARM indicator flashes in the display.

  • Page 31: Set Alarm To Tone Mode

    4. Press E to complete the entry. 5. ALARM indicator 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 ALARM to turn on the alarm function.

  • Page 32: Turn The Alarm Off

    Turn the Alarm Off Press ALARM to deactivate the alarm function. When the alarm is off, the ALARM indicator and current alarm time are no longer displayed. Only the current time displays. If you would like to listen to the scanner while waking up, turn the scanner on.

  • Page 33: Set Alarm To Radio Mode

    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.

  • Page 34: About The Unit

    Press SCAN to 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.

  • Page 35: Troubleshooting

    TROUBLESHOOTING If your BC248CLT is not performing properly, try the following steps. Problem Scanner won’t power up. Poor reception. Scan won’t start. Solution Check the connections at both ends of the AC Adapter. Turn on the wall switch of your room.
  • Page 36 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. Solution Adjust squelch to the threshold (Page 9).

  • Page 37: Technical Specifications

    TECHNICAL SPECIFICATIONS Certified in accordance with FCC Rules and Regulations Part 15 Sub-part C as of date of manufacture. Band Coverage: Frequency Coverage: Scanner Radio Weather Service Channel Sensitivity (nominal) 12dB SINAD: Channels: Scan Rate: Audio Output (nominal): Power Requirements: Antenna: External Jacks: Speaker:...

  • Page 39: Two-Year Extended Warranty

    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.

  • Page 42: Thank You

    THANK YOU F O R P U R C H A S I N G T H I S U N I D E N P R O D U C T ! © 1999 Uniden America Corporation UBZZ01299ZZ All rights reserved • Printed in Philippines Covered under one or more of the following U.S.

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