Resumen del contenido incluido en la página 1
BC248clt.qxd 3/8/00 7:19 PM Page 101
BC 248CLT
10 BAND, 50 CHANNEL SCANNER
• 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
Resumen del contenido incluido en la página 2
BC248clt.qxd 3/8/00 7:19 PM Page 102 Precautions Before you read anything else, please observe the following: Uniden DOES NOT represent this unit to be waterproof. To reduce the risk of fire or electrical shock, DO NOT expose this unit to rain or moisture. 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, possessi
Resumen del contenido incluido en la página 3
BC248clt.qxd 3/8/00 7:19 PM Page 103 Introduction TABLE OF CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 About Scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Taking Proper Care of Your Scanner . . . . . . . . . . . . . . . . . .2 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Getting Started Getting Started . . . . . . . . . . . . . . . . . . . . . . . . .
Resumen del contenido incluido en la página 4
BC248clt.qxd 3/8/00 7:19 PM Page 1 INTRODUCTION About Scanning Scanning Options Scanning is easy and fun with the BC248CLT 50-Channel Base Scanner with AM/FM Radio. You can scan in two ways: Scan channels you have programmed Scan pre-programmed weather channels. What is Scanning? 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
Resumen del contenido incluido en la página 5
BC248clt.qxd 3/8/00 7:19 PM Page 2 Many more in the 29-54MHz, 137-174MHz, and 406-512MHz ranges 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 enth
Resumen del contenido incluido en la página 6
BC248clt.qxd 3/8/00 7:19 PM Page 3 GETTING STARTED Installing the BC248CLT AM RADIO ANT AC 10V ANT 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; it could cause clock reset. 3. Plug the Telescoping Antenna into the ANT. jack. Extend the antenna to its full height. For UHF frequencies, shortening the ant
Resumen del contenido incluido en la página 7
BC248clt.qxd 3/8/00 7:19 PM Page 4 OPERATION Controls and Functions 7 8 9 10 11 6 5 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. And press for channel presets in Radio Mode 3. Decimal Key Press to enter the decimal point in the frequency. Also, use for clearing mistakes during entri
Resumen del contenido incluido en la página 8
BC248clt.qxd 3/8/00 7:19 PM Page 5 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. TIME SET Key Press more than 2 seconds to enter the Present Time Set mode. 14. TIME Key Press to review the clock time and cancel the Alarm time set and Present Time Set mode. 15. LOCKOUT Key Prevent
Resumen del contenido incluido en la página 9
BC248clt.qxd 3/8/00 7:19 PM Page 6 26 30 27 28 29 32 33 34 35 31 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. 25. SCAN Appears when in Scan mode. 26. PRI Displays when priority function is active. 27. HOLD Displays when in Manual mode and WX Hold mode. 28. L/O A
Resumen del contenido incluido en la página 10
BC248clt.qxd 3/8/00 7:19 PM Page 7 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. As the unit scans, the word SCAN moves across the display, and the ban
Resumen del contenido incluido en la página 11
BC248clt.qxd 3/8/00 7:19 PM Page 8 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. 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/PM to select the desired setting
Resumen del contenido incluido en la página 12
BC248clt.qxd 3/8/00 7:19 PM Page 9 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. 9
Resumen del contenido incluido en la página 13
BC248clt.qxd 3/8/00 7:19 PM Page 10 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. This lowers the “Squelch Gate” so that everything gets through — noise, weak signals, and strong signals. Turn SQUE
Resumen del contenido incluido en la página 14
BC248clt.qxd 3/8/00 7:19 PM Page 11 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. Program the most important frequency, or the one of major interest, into Channel 1. You may also select any other channel to be the priori
Resumen del contenido incluido en la página 15
BC248clt.qxd 3/8/00 7:19 PM Page 12 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. Then press MANUAL again. OR Press / until channel 12 appears in the display. 3. Type in the frequency numbers, including the
Resumen del contenido incluido en la página 16
BC248clt.qxd 3/8/00 7:19 PM Page 13 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. To select the channel (12), press 1, then 2 on the numeric keypad. Then press MANUAL again. OR Press / until channel 12 appears in the display. 3. Press 0, then E to complete the e
Resumen del contenido incluido en la página 17
BC248clt.qxd 3/8/00 7:19 PM Page 14 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 chann
Resumen del contenido incluido en la página 18
BC248clt.qxd 3/8/00 7:19 PM Page 15 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. If desired, you can press MANUAL repeatedly to manually scan all 50 channels, one press per channel, including the channels
Resumen del contenido incluido en la página 19
BC248clt.qxd 3/8/00 7:19 PM Page 16 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. 3. Press MANUAL again to successfully complete the direct access to Channel 4. Priority Sc
Resumen del contenido incluido en la página 20
BC248clt.qxd 3/8/00 7:19 PM Page 17 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 MANUAL to exit the Scan Mode. 2. Press 5 and MANUAL for direct channel access. Or select channel 5 using
