Uniden Bearcat Ubc144Xlt Operation Manual ManualsLib Makes It Easy To Find Manuals Online!

2014-12-11

: Uniden Uniden-Bearcat-Ubc144Xlt-Operation-Manual-121705 uniden-bearcat-ubc144xlt-operation-manual-121705 uniden pdf

Open the PDF directly: View PDF .
Page Count: 20

Download
Open PDF In Browser	View PDF

UBC144XLT
16-Channel Base Scanner
...,.

OPERATING GUIDE

PRECA UTI 0 NS
Before you read anything else,
please observe the following:
WARNING!
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.

Uniden- is a registered trademark of Uniden Corporation.
Bearca~ is a registered trademark of Uniden Corporation.

Table of Contents
Introduction
AboutScanning
TakingProperCareofYourScanner
Unpacking

2
3
3

Installation
InstallingtheUBC144XLT

Operation
ControlsandFunctions
ScanningOverview
Getting Started
AdjustingtheSquelch
Programming Tips
Programming Frequencies
AboutMemoryBack-up
Scanning
Direct Channel Access
CheckingtheProgrammedFrequency
WeatherChannelScan
Priority Scanning
ChannelLockout

5
7
7
8
8
9
9
10
10
11
11
12
12

About the Unit
HelpfulHints
Troubleshooting
TechnicalSpecifications
Warranty

14
15
16

-----

---==
Introduction
About Scanning
Scanning
Options

Scanning is easy and fun with the UBC144XL T 16-Channel
Base Scanner. You can scan in 2 ways:
.
.

Scan channels you have programmed
Scan pre-programmed weather channels.

Unlike standard AM or FM radio stations, most 2-way
communications (see "Types of Communication" below) do
not transmit continuously. The UBC144XL T scans
programmed channels at the rate of about 15 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. When the
transmission ends, the scanner stays on the channel for
2 more seconds, waiting for a responding transmission. If
no responding transmission is detected, the scanning cycle
resumes until another transmission is received.

Types
of

You can to monitor communication such as:

Communication

. Police and fife department
(including rescue and paramedics)
. Weather broadcasts
. Business/industrial radio
. Motion picture and press relay

. Utility

. Land transportation frequencies such as trucking firms,
buses, taxis, tow trucks, and railroads
. Marine and amateur (ham radio) bands
. And many more

------

'==

TakingProperCare of YourScanner

1+1

~
~

.
.

kitchen
Do 'not use
or bathroom.
the scanner

in high-moisture

environments

such

as the

A void placing the unit in direct sunlight or near heating elements or
vents.

Unpacking
Carefullycheckthecontentsagainstthislist:
T Base Scanner

. UBC144XL
.
.

Telescopic
Antenna
ACAdaptor(ModelAC-l44U)

ThisOperating
Guide

I@f If any itemsaremissingor damaged,contactyourplaceof purchase
immediately.
I@f ReadthisOperatingGuidethoroughlybeforeoperatingthe scanner.

~~-

Installation
Installingthe UBC144XLT
Antenna Jack

AC 1aV Jack

AC Plug

Telescopic Antenna

AC Adaptor
Model AC-144U

1. Insert the DC plug end of the AC Adaptor into the AC 10 V jack on the
scanner.
2. Plug the AC Adaptor into any standard 240 VAC wall outlet.
3. Plug the Telescopic Antenna into the ANT~jack. Extend the antenna to its
full height. For UHF frequencies, shortening the antenna may improve the
reception.
4. Plug an optional external speaker C8-ohm)into the EXT.SP.jack.

Notes

If strong interference or electrical noise is received, relocate the scanner or
its antenna away from the source.
If you are operating the scanner in the fringe area or need to improve
reception, use an optional antenna designed for multi-band coverage.
(You can purchase this type of antenna at a local electronics store.) If the
optional---antenna has no cable, use 50-70 ohm coaxial cable for lead-in.
A mating plug may be necessary for the optional antennas:

----

Operaticn
Controls and Functions

I
5
1

IDdI!n atKw:ot
CHANNa

8 BAND SCANNING

RADIO UBCI4<4XL T

LQQCCU1'
WEIICII-IM

~@@
@@@
(D@@
@OrE

'10

1. Numeric
Keys
2. EnterKey
CD

Use to program a frequency into each channel for scanning.
.
Also, use for direct channel access with ~
Press

to complete the programming of a frequency to

the selected channel.

3. PRIORITY
Key Press(PRiORITY)to turn Priority mode on or off. In Priority
(PRiORITY)

mode, the scanner samples Channel! every 2 seconds,
regardless of any other mode the scanner is in. If a
transmission on Channel! is detected, the scanner monitors
Channel! until no signal is present. Priority mode is
cancelled when you turn off the scanner.

4. LOCKOUTKey Press ~
to prevent scanning of the displayed channel.
~
The LOCKOUT
LED lights when the current channel is
locked out. Lockout is retained in memory. Press ~

again to unlock the channel. The LOCKOUTLED turns off.
Lockout is active only when the scanner stops on an active
channel or a channel selected in Manual mode.

I~
5. Channel
Display

Mode

Display
Current channel.
Channel that was current before
pressed.

was

Scan or Manual
Weather

Each numeric entry, decimal (-), and CD if
entry error.

Programming

When (REVIEW) is pressed, displays
programmed frequency, digit-by-digit.
L

Review
Memory Loss

P, when scanner stops on the PriorityChannel. Priority

6. WXKey
0iX)

Press0iX)

7. SQUELCH
Control

Adjust SQUELCHto set the scan threshold. When you are

8. VOLUME
Control I
Power Switch

Turn VOLUMEclockwise to turn the scanner on to increase
the volume. Turn counterclockwise to decrease the volume
or turn the scanner off.

9. REVIEWKey

Press ( REVIEW) to review the frequency of the current channel.

( REVIEW)
10. MANUAL Key

to find the local weather channel.

monitoring a single channel in Manual mode, adjust
SQUELCHto eliminate the background "rushing" noise
heard in the absence of an incoming signal.

Press ~

to stop scanning. Press ~

againto step

0ANUAl)

to theentering
next channel.
Also,number
use for and
direct
channel
acc~ss
b~
first
the channel
then
pressing.
MANUAL
to go directly to that channel.

11. SCAN Key
GSCAN)

Press GSCAN) to start scanning.

12. LOCKOUT
LED

Lights when the current channel
is locked out.

13. Weather LED

Lights when in Weather Search
(WX) mode. Flashes when
searching for the active weather
channel in your area.

UD«XJT

1~ 5

-iL!QJ
@

;:::::;;::

Scanning Overview
The UBC144XLT

has 16 memory channels, each of which can be programmed to

store 1 frequency within the band of frequency coverage. (For a listing of frequency
ranges and bands, see "Technical Specifications" on page 16.)
When you press C. SCAN),each of the programmed frequencies is scanned for an
active frequency (channels that are locked out are skipped) at the rate of about 15
channels per second.
When the scanning stops on an active frequency, it remains on that channel as long
as the transmission continues. When the transmission ends, the scanner will remain
on the same channel for 2 more seconds, waiting for a responding transmission. If
there is n() responding transmission within 2 seconds, the scanning cycle resumes.

Getting Started

)
)

Turn SQUELCHfully clockwise to the highest number
setting (9).

Turn on the power by turning VOLUMEclockwise. Adjust
the volume to where you can hear a steady noise.

Set the squelch at the scanning threshold by turning
SQUELCH
counterclockwise just until the noise

)
)

disappears.
The scanner automatically starts scanning.

VOLUME

If you have not programmed any channel, press C. wx)
to hear your local weather broadcast.
Adjust the volume to a comfortable listening level.

Adjusting the Squelch

Open the squelch by turning SQUELCHclockwise to
position 8 or 9. You should hear a steady sound
(scanning stops).
Now turn SQUELCHcounterclockwise slowly until the
sound disappears. This is the threshold point at which
scanning starts. At the squelch threshold, an incoming
signal just slightly stronger than the noise will open the
squelch.

When squelch is open, you can hear the broadcast (scanning is stopped). If squelch
is set too tight (that is, too far counterclockwise from the threshold point), a stronger
signal is required to open the squelch.
If squelch is set on a point clockwise from the threshold, you hear a constant sound
(noise, if no signal is present); the scanner does not scan.

Programming Tips
. You can program 1 frequency per channel.
Channel! is the fixed priority channel. Program the most important
frequency, or the one of major interest, into Channel!.
. To quickly program a series of channels, start programming at the lowest
number channel you want to program. For example, when you program five
new frequencies into Channels 4 through 8, start with Channel 4. After you
complete the programming in 1 channel by pressing ~,
press~
to
step up to the next channel to be programmed.

If you make an error during programming, or the frequency is out of range,

IIEIIappears on the channel display.

. During numeric entry, if you know that you pressed the wrong number,
press ~
twice. This cancels the entire numeric entry, and displays the
current channel number.
. Above 406 MHz, the frequency steps are in 12.5 kHz increments. To enter
a frequency such as 450.4875, press each key in sequence. You will not
see the last digit entered in the display (even when reviewed). However, the
correct frequency is stored in the scanner.
. Once you have programmed a channel, you cannot erase the frequency in
that channel. . However, you can change the frequency in a specific channel
by programming a new frequency over the existing one.

memory, fIrst turn off the scanner.
If you press
want and
to manua~y
er~e (]),
all theand CD simultaneously while you turn
Then,
hold. MANUAL,
.

the scanner back on. The channel display shows

erased.
8

IILI!,

and all memory is

<:::

Programming Frequencies
Before you can use your UBC144XL Tt you must follow these steps to program the
channels, except weather frequencies.

Example: Program 420.150 MHz into Channel 12.
Press

Ci) G) CV
CD0
OJ

Q Ci)

G) CV
1)CD0
QCD

C. MANUAIJ

to stop scanning.

To select the channel (12), press CI), then (gJ
numeric keypad.

Thenpress ~

again.

Type in the frequency numbers, including the decimal
point using the numeric keypad:

CD (gJ @) CD CI) CI) @)
The decimal point ( C!J)
channel display.

CD CD CD
CD CD CD
(Q)O

on the

Press

appears as a dash (-) on the

CD to complete the entry.

About Memory Back-up
Your UBC144XLT has a convenient type of memory back-up system. In the event of
a power failure, the scanner provides approximately 1 days of memory retention so
you don't immediately lose the frequencies stored in any of the channels.

'=
Scanning
Turn on the power, or press C. SCAN)to

start scanning.

(When the scanner is turned on, it is automatically in
Scan mode.)
Scanning stops on any active channel automatically,

except those channels programmed with ~

Scanning resumes automatically 2 seconds after the
channel becomes inactive.

Press C.MANUAL)
any time to stop scanning. When you press
~,
you are out of Scan mode, and the scanner
remains on the displayed channel.

SCAN

Pres~c:scAN)to start scanning again, or press ~

step up 1 channel.

You can press ~

repeatedly to manually scan all 16

channels, 1 press per channel, including the channels that
are locked out.

Direct Chan nel Access
This feature allows you to instantly access a specific channel you want to monitor.
Example:

Select Channel 4.

G) (i)

PressG).

CDCD

om
Press C.

MANUAIJ

SCAN

When you press~,
the display changes to "4", but the scanner still monitors the
previous channel displayed. You must press C. MANUAL)to successfully complete the
direct access to Channel 4.

<::::::c

Checking the Programmed Frequency
Press(REViEW)
to check the frequency programmed in the
display channel.
Each digit of the frequency is displayed individually, and
then the channel number returns.
Repeat these steps to review additional frequencies in the
other channels.

Nbte
. If youentera frequencythatis notan exactstepwithintherange
(e.g.,151.056beinsteadof
151.055),thenearestcorrec(frequ:fnCY
automatically
stored and
displayed when you press REVIEW. will

Weather Channel Scan (Weatherchannelsarenotused
inAustralia)

The U BC144XL T allows you to search for your local weather channel.

Yr)

~IORr0

Press
GViX) to find the active weather channel in your
area from 7 pre-programmed channels.
It is possible that your area is covered by more than 1
weather station.

. SCAN

When you press GViX), the UBC144XL T immediately finds an active broadcast. ITthe
broadcast sounds weak and distant, press GViX) again to look for a closer station.

Note
. All weather channels transmit continuous broadcasts. Once the Weather
scan stops on a transmission, it will remain on that channel. Weather scan
will not resume automatically. You must press GViX) again to reactivate
scannmg.

. broadcasts,as in low-lyingareas. Normally,a higherlocationimproves
In some parts of the country, you may not be able to monitor weather

reception.
( LOCKOUT) REVIEW

To exit Weathermode,pressc:scAN)or ~

, or turn

off the scanner.

. MANUA

-'-----

<:::::c

Priority Scanning
Your UBC144XL T has fixed Priority Channel, Channel I. Priority Scan works like
a "dual watch" function. When you activate Priority Scan mode, the scanner starts
"sampling," or keeping track of the activity on Channel 1 while listening to other

channels.
Every 2 seconds, the scanner checks Channel 1 for activity. If a signal is present,
Channel 1 will be monitored until the transmission ends, and a constant "P" appears
on the channel display. When the signal stops for more than 2 seconds, normal
operation resumes.

(DC[)

CDC6
CD

First program the frequency most important to you into

Channel1.

Press ~RIORITY) to set the scanner in Priority Scan mode.
"P" appears on the display momentarily every 2 seconds
to indicate that the Priority scan is on.

To exit Priority scan, press (PRiORiTY).

Chan nel Lockout
You can lock out a channel so it is not scanned. This does not erase the frequency
from the channel when it is locked out. You can lock out up to 15 channels,
including the Priority channel, but not all 16 channels.

Example: Suppose you want to lock out Channel 2 because it stops on transmissions
you don't want to hear.
Press

when the scanner stops on Channel 2. The
Channel 2 and immediately advances to

scanner locks out

the next channel to resume scanning.

mode, press LOCKOUT to lock out the
displayed channel. Pressing LOCKOUT does not advanceto
In the Manual

the next channel in Manual mode.

The LOCKOUTLED lights to indicate the displayed
channel is locked out.
Whenever you want to search for channels that are locked out, press ~
repeatedly to go through all 16 channels. If a channel is locked out, the LOCKOUT
LED lights.

Restoring
a
LockedOut
Channel

To unlock a channel so that it can be monitored during

scanning:
Use 0ANUA0 to find the locked out channel.

SCAN

REVIE

Press ~

to unlock the displayed channel.

The LOCKOUT
LED for the displayed channel turns off.

...

About the Unit
Helpful Hints
GeneralUse

Location

. Turn
the scanner off before

.
.
.
.

.
.
Cleaning

Repairs

Birdies

.
.

..
.

disconnecting the power.

Always write down the programmed frequencies in the
event of memory loss.
If memory is lost, simply reprogram each channel. The

display shows IIL" when memory is lost.
Always press each keypad button firmly until you hear the
entry tone for that key entry.
If strong interference or electrical noise is received,
relocate the scanner or its antenna away from the source of
the noise. If possible, a higher elevation may provide
better reception. Also, try changing the height or angle of
the antenna.
Do not use the scanner in high-moisture environments
such as the kitchen or bathroom.
Avoid placing the unit in direct sunlight or near heating
elements or vents.

Disconnect the power to the unit before cleaning.
Clean the outside of the scanner with a mild detergent.
To prevent scratches, do not use abrasive cleaners or
solvents. Be careful not to rub the LED window.
Do not use excessive amounts of water.
Do not attempt any repair. The scanner contains no

serviceable parts. Contact the Vniden Customer Service
Division or take it to a qualified repair technician.

Allradiosaresubjectto receivingundesiredsignalsor
"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
thereceiver.PressGSCAN)to resume scanning.

<:'"

Troubleshooti ng
If yourUBC144XLT is notperfonningproperly,try thestepslistedbelow.
Problem
Scanner won't work

Improper reception

.
.
.
.
.
.
.
.

Scan won't stop.

Solution
Check the connections at both ends of the AC Adaptor
Turn on the wall switch of your room. You could be
using an outlet controlled by the wall s':V,itch
Move the AC Adaptor to another wall outlet
Check antenna connection
Move or angle the antenna
If programmed frequency is higher than 406 MHz, a
shorter antenna length may improve the reception
Relocate the scanner.
You may be in a fringe area. This may require an
optional multi-band antenna. Check with your dealer
or local electronics store.

.
.
.
Scan won't start.

Weather Scan won't work.

.
.
.

.
.

Adjust Squelch to the threshold
(see page 8, "Adjusting the Squelch.")
Check the antenna connection.
Ch((ck 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.
Press the Scan button again.
Adjust the Squelch Control.
Check to see if 15 channels are locked out. If so,
unlock the channels as needed.
Adjust Squelch to the threshold
(see page 8, "Adjusting the Squelch.")
Check antenna.
No active station within range.

If you still cannot get satisfactory results and want additional infonnation, or to
return the unit for service, please call or write the Uniden Customer Service Division.
The address and phone number are listed in the Warranty (at the end of this manual).

<:::

Technical .specifications
Band Coverage:

8 bands

F'rfttuencyCoverage:

66.0-88.0MHz
137-144MHz
144-148MHz
148-174MHz

VHFLowBand
LandMobile
2 MeterAmateurBand
VHFHighBand

Above bands in 5 kHz steps

406-420 MHz
Land Mobile
420-450 MHz
70cm Amateur Band
450-470 MHz
UHF Standard Band
470-512 MHz
Land Mobile
Above bands in 12.5 kHz steps

Sensitivity (nominal)
121dB SINAD:

0.5 f.1V 66-88 MHz
0.4 f.1V137-174 MHz
0.6 f.1V406-512 MHz

Selectivity (nominal):

-6 dB at 180kHz
Source Exif Data:
File Type : PDF
File Type Extension : pdf
MIME Type : application/pdf
PDF Version : 1.7
Linearized : No
Author : Provided By MANUALSLIB.COM - http://www.manualslib.com/
Create Date : 2013:05:20 11:03:26Z
Keywords : manuals, instruction manuals, user manuals, service manuals, user guides, pdf manuals, owners manuals, installation guides
Modify Date : 2014:12:07 11:37:26+08:00
Subject : Search through 700.000 manuals online & and download pdf manuals.
Has XFA : No
XMP Toolkit : Adobe XMP Core 5.4-c005 78.147326, 2012/08/23-13:03:03
Format : application/pdf
Creator : Provided By MANUALSLIB.COM - http://www.manualslib.com/
Description : Search through 700.000 manuals online & and download pdf manuals.
Title : ManualsLib - Makes it easy to find manuals online!
Creator Tool : pdftk 1.44 - www.pdftk.com
Metadata Date : 2014:12:07 11:37:26+08:00
Producer : itext-paulo-155 (itextpdf.sf.net-lowagie.com)
Document ID : uuid:c884c86b-1c24-5345-a4dd-9cc67d25bfd7
Instance ID : uuid:c2d70ebf-72c9-5247-b8c2-10c98749ab26
Page Count : 20

EXIF Metadata provided by EXIF.tools

Uniden Bearcat Ubc144Xlt Operation Manual ManualsLib Makes It Easy To Find Manuals Online!

Navigation menu

Versions of this User Manual:

Views

Navigation