UnidenメーカーUBC248CLTの使用説明書/サービス説明書
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UBC 24 8C L T • FULLY PROGRAMMABLE • FULL FREQUENCY LCD READOUT • ALARM CLOCK • AM/FM RADIO • CHANNEL LOCKOUT • PRIORITY CHANNEL • SCAN DELA Y • MEMORY BACKUP • FREQUENCY SEARCH 8 BA.
P r ecautions Bef ore you read an ything else, please obser v e the f ollowing: Uniden ® and Bearcat ® are registered trademarks of Uniden Corporation.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 About Scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Taking Proper Care of Y our Scanner . . . . . . . . . . . . . . .
1 About Scanning Scanning is easy and fun with the UBC248CL T 50-Channel Base Scanner with AM/FM Radio. What is Scanning? Unlike standard AM or FM radio stations, most 2-way communications do not transmit continuously (see T ypes of Communication below).
2 ■ Many more in the 66-88MHz, 137-174MHz, and 406-512MHz ranges ■ AM/FM radio Y ou must program a frequency into each channel you want to use. T aking Proper Care of Y our Scanner ■ Do not use the scanner in high-moisture environments such as the kitchen or bathroom.
Installing the UBC248CL T 1. Insert the small plug at the end of the AC Adaptor cord into the AC 10V jack on the scanner . 2. Plug the AC Adaptor into any standard 240V AC wall outlet. Do not plug into an outlet controlled by a wall switch; it could cause clock reset.
4 Controls and Functions 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 MANU AL key . And press for channel presets in Radio Mode 3.
5 10. DELA Y Key T urns Delay function. When Scan stops on a channel it causes scanner to remain on that channel for 2 seconds before the scanning resumes to wait for a possible reply . 11. ALARM Key T urns the T one Alarm. T urns the Radio Alarm ON/OFF by pressing the key more than 2 seconds.
6 23. ALARM Appears when Alarm function is active. Flashes in the snooze function mode. 24. BANK Appears when in Scan Mode, Manual Mode. 25. 1-5 In Scan Mode, displays the bank being scanned. In Manual Mode, displays the bank number associated with the channel.
7 Scanning Overview The UBC248CL T 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 T echnical Specifications on page 32.
8 Initial Clock Set-up 1. When power is initially applied, the display flashes i2:00 P after a short delay . 2. Enter the time directly by pressing the numeric keys. OR Enter the time by pressing the ▼ or ▲ keys. T o scroll through more quickly , press and hold ▼ or ▲ .
Set the Squelch 1. T urn SQ UELCH fully clockwise to the highest setting. 2. Press SCANNER to turn on the scanner . 3. Adjust the V OLUME control until you can hear a steady noise.
10 4. T o set the SQ UELCH control to AU TO turn fully counter clockwise until control clicks into place. Or , manually set squelch as follows: ■ Think of squelch as a gate. T urn SQUELCH fully counter clockwise. This raises the “ Squelch Gate ” so high that only very strong signals can get through.
11 Programming T ips 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. Y ou may also select any other channel to be the priority channel.
12 Programming Scanner Frequencies Before you can use your UBC248CL T scanner , you must program the channels. Follow these steps: Example: Program 420.0150 MHz into Channel 12. Press scanner button to switch to scan mode. 1. Press MANU AL to stop scanning.
4. Press E to complete the entry . The channel digits stop flashing. Display shows Deleting a Scanner Frequency If you want to delete a stored frequency , follow these steps: Example: Delete the frequency in Channel 12. 1. Press MANU AL to stop scanning.
14 4. The following screen appears. About Memory Back-up Y our UBC248CL T 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 .
T o 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 MANU AL any time to stop scanning. The scanner remains on the displayed channel.
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 MANU AL to exit scan mode. 2. Press 4 . 3. Press MANU AL again to s uccessfully complete the direct access to Channel 4.
17 T o Set the Priority Channel Y our UBC248CL T has one default Priority Channel per bank. Each priority channel is, set at the first channel in the bank. T o change the priority channel determine the frequency most important to you and program it into the desired channel location.
18 Channel Lockout Y ou can lock out a channel so it is not scanned. Channel Lockout does not erase the frequency from the channel. Y ou can lock out up to 50 channels, including the Priority channel. Lockout information is retained in the memory when the scanner is turned off.
2. Press LOCKOUT again to unlock the displayed channel. L/O no longer appears in the display . Restore All Locked Out Channel T o unlock all channels, you must be in the Manual Mode. 1. Press MANU AL. 2. Press and hold LOCK OUT to unlock all channels.
20 T o Set Delay in Scan Mode 1. Press SCAN . 2. When your scanner stops on a channel, press DELA Y . DL Y appears in the display and scanning resume 2 seconds after the transmission ends. T o Set Delay in Manual Mode 1. Press MANUAL . 2. Select the channel you want using your keypad.
21 SEARCHING The UBC248CL T can search bands or range of frequencies you specify to find desired frequencies. This is useful if user does not have a Frequency Directory handy , or if new stations have been added since the Directory was published. Follow the steps below in programming range of frequencies: 1.
22 Locking Out Frequencies in Search During search, you might repeatedly encounter frequencies that you are not interested in. Also, all scanners are subject to receiving internally generated frequencies (called birdies ) that stop you scanner ’ s search when there is no real signal present.
23 LCD Backlight The LCD Backlight comes on when the power is applied. In Scan Mode and Manual 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.
3. Press ▼ or ▲ to set the desired frequency . The channel number flashes. Continue to press ▼ or ▲ to step through the frequencies in 100kHz steps. Or , press and hold ▼ or ▲ to step through the frequencies more quickly until 92.5000MHz appears in the display .
25 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. T o select the channel (9), press 9 o n the numeric keypad.
26 Reset the Clock T ime 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. OR Enter the time by pressing the ▼ or ▲ keys.
27 Set the Alarm T ime There are two types of alarm sounds with this scanner ., T one 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 .
28 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 mode. Set Alarm to T one Mode Press ALARM to turn on the alarm function.
29 T urn 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 find the T one Alarm too loud, select the Radio Mode instead.
30 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.
31 Helpful Hints General Use ■ T urn 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. ■ Always press each keypad button firmly until you hear the entry tone for that key .
32 Problem Solution ■ Check the connections at both ends of the AC Adaptor . ■ T urn on the wall switch of your room. Y ou could be using an outlet controlled by the wall switch. ■ Move the AC Adaptor to another wall outlet. ■ Scanner won ’ t power up.
33 Problem Solution ■ 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.
34 Band Coverage: 8 bands plus and AM/FM Radio Frequency Coverage: Scanner 66-88 MHz VHF Low Band 12.5 KHz step 137-144 MHz Land Mobile 144-148 MHz 2 Meter Amateur Band Above bands in 5 kHz steps 148-.
Uniden UBC248CL T Note: Please keep your sales docket as it provides evidence of warranty . W ARRANTOR: Uniden Australia Pty . Limited ACN 001 865 498 Uniden New Zealand Limited ELEMENT OF W ARRANTY :.
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THANK YOU FOR PURCHASING THIS UNIDEN PRODUCT! © 2000 Uniden Corporation UBZZ01299BZ All rights reserved.
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