Uniden BC 235XLT User Manual
TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
What is Scanning? . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
What is Searching? . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Types of Communications . . . . . . . . . . . . . . . . . . . . . 3
Feature Highlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Where to Obtain More Information . . . . . . . . . . . . . . . . . 5
Included with Your Scanner. . . . . . . . . . . . . . . . . . . . . . . 6
Setup . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . 7
Installing the Batteries . . . . . . . . . . . . . . . . . . . . . . . . 7
AC Adapter/Charger. . . . . . . . . . . . . . . . . . . . . . . . . . 8
Charging Warning. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Adapter Safety Feature . . . . . . . . . . . . . . . . . . . . . . . 9
Flexible Antenna. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Belt Clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Setting the Squelch . . . . . . . . . . . . . . . . . . . . . . . . . 10
Keylock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Duplicate Frequency Alert . . . . . . . . . . . . . . . . . . . . 14
Programming Tips . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Channel Lockout. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Lockout in Manual Mode . . . . . . . . . . . . . . . . . . . . . 17
Locking a Channel While Scanning . . . . . . . . . . . . . 18
Lockout Tips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Restore a Locked Out Channel . . . . . . . . . . . . . . . . 19
Restore All Locked-out Channels. . . . . . . . . . . . . . . 20
Priority Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Changing the Priority Channel . . . . . . . . . . . . . . . . . 22
Chain Search. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Setting a Search Range . . . . . . . . . . . . . . . . . . . . . . 23
Search Hold Feature . . . . . . . . . . . . . . . . . . . . . . . . 26
Channel Skip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Storing Search Frequencies . . . . . . . . . . . . . . . . . . . 27
Weather Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 31
General Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Repairs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Birdies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Accessories and Replacement Parts. . . . . . . . . . . . . . . 35
One Year Limited Warranty . . . . . . . . . . . . . . . . . . . . . . 36
1
Introduction
The
BC 235XLT
information radio with automatic scanning capabilities. It
can store frequencies such as police, fire/emergency,
marine, air, amateur, and other communications into 10
banks of 30 channels each. And you can scan all 300
channels at super fast Turbo Scan speed.
is a brand new state-of-the-art
With the
fast speed. You can also search vhf frequencies at super
fast Turbo speed.
BC 235XLT
, you can search for frequencies at
Caution: 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 Operating Guide, could void your
authority to operate this product.
What is Scanning?
Unlike standard AM or FM radiostations, most two-way
communications do not transmit continuously. The
235XLT
active frequency.
Scanning stops on an active frequency and remains on
that channel as long as the transmission continues. When
the transmission ends, the scanning cycle resumes until
another transmission is received.
scans
programmed
channels until it finds an
BC
What is Searching?
The can search each of 12 bands to find active
frequencies. This is different from scanning, because you
can search for frequencies that have not been
programmed into your . You can choose between two
speeds for the search feature. With Turbo Search, a new
feature for Uniden scanners, you can search the VHF FM
bands at up to 3 times the normal speed.
When the is searching for active frequencies, it is in
“Search mode” or “Turbo Search mode.” When you stop
the search with HOLD, it isin “Search Hold mode”.
With both Turbo Scan and Turbo Search, your is truly a
Twin Turbo Scanner.
2
Types of Communications
Monitor communications such as:
Police and fire department (including rescue and
paramedics)
NOAA weather broadcasts (preprogrammed
channels)
Business/industrial radio
Motion picture and press relay
Utilities
Land transportation frequencies, such as trucking
firms, buses, taxis, tow trucks, and railroads
Marine and amateur (ham radio) bands
And more in these bands:
Frequency
Range
29-29.7 MHz 10 Meter Amateur Band
29.7-50 MHz VHF Low Band
50-54 MHz 6 Meter Amateur Band
137-144 MHz Military Land mobile
144-148 MHz 2 Meter Amateur Band
148-174 MHz VHF High Band
406-420 MHz Federal Govt. Land Mobile
420-450 MHz 70 cm Amateur Band
450-470 MHz UHF Standard Band
470-512 MHz UHF “T” Band
Transmission
3
Feature Highlights
30 Channels – Program one frequency into each
channel. You must have at least one channel
programmed to use the Scan mode.
29 MHz-512 MHz – Search these frequency
ranges with your scanner. (The frequency
coverage is not totally continuous from 29 MHz to
512 MHz.)
Chain Searching – You can define five different
personal search bands, and search up to all five
chain locations at once.
Priority Channel Scanning – Allows you to
designate a priority channel which is monitored
every two seconds when Priority Scanning is
selected.
Manual Channel Access – Go directly to any
channel.
Memory Backup – Frequencies programmed in
channels are retained in memory. If power is
completely disconnected, the frequencies are
retained for one hour.
Weather Scan – Use as a weather information
radio.
Preset Two-second Delay – Scanner waits two
seconds after transmission stops before resuming
scanning.
LCD Back Light – An orange LCD light remains
on for 15 seconds when
l is pressed.
4
Where to Obtain More
Information
Before using your scanner, you must program frequencies
into available channels. The
Frequency Guide
U.S.A. and Canada that you may program into your new
scanner.
If the frequencies listed in the starter guide do not work in
your area, call the enclosed
Uniden representative should be able to provide you with
sample frequencies, or use the enclosed order form to
purchase a local frequency list.
The Bearcat Radio Club and other similar hobby clubs
have publications, information on computer bulletin boards,
and even contests for the radio enthusiast. Also, your local
library has more information.
lists typical frequencies used around the
Betty Bearcat Starter
Mr. Scanner (800) Number
.A
5
Included with Your Scanner
If any of these items are missing or damaged, immediately
contact your place of purchase or Uniden Customer
Service at: (800) 297-1023, 8:00 a.m. to 5:00 p.m., Central,
Monday through Friday.
Rubber Antenna
(AT218)
Betty Bearcat
Starter
Frequency
Guide
Belt Clip
with
Screws
(BCK150)
AC Adapter
(AD70U)
Other
Printed
Material
6
Setup
These are helpful guidelines when using your new scanner:
If your scanner receives interference or electrical
noise, move the scanner or its antenna away from
the source.
If you 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.)
Use the included earphone or an optional stereo
headset with proper impedance for private
listening. Read the precautions on the inside front
cover of this Guide.
Installing the Batteries
1. Open the cover.
Lift
Press in
2. Insert batteries.
Ni-Cd
BATT.
REG.
ALK.
BATT.
Inside
of Top
Cover
REG.
Ni-Cd
ALK.
BATT.
BATT.
Note: If you are installing alkaline batteries, set the switch
to
REG. ALK. BATT.
Batteries, set the switch to
If installing Nickel-Cadmium
Ni-Cd BATT.
7
3. Replace cover and
press down until it
clicks into place.
REG.
Ni-Cd
ALK.
BATT.
BATT.
Warning: Do not mix alkaline batteries with
Batteries. Be sure to installfour batteries of
the same type.
AC Adapter/Charger
Use the AC Adapter/Charger to power the
from an AC outlet.
AD-70U
AC Adapter
Use only the supplied AC Adapter
(AD70U)
or one of the optional power
(UA502 or UA510)
cords
.
Ni-Cd
BC 235XLT
AC 120V
Outlet
Charging Warning
Do not charge alkaline batteries in this scanner. Doing so
may cause serious damage to the product and void the
warranty. Before attempting to recharge batteries, make
sure you have installed four rechargeable nickel-cadmium
batteries and the selector switch is set to
8
Ni-Cd BATT
.
Adapter Safety Feature
The AC Adapter included with this scanner may be
equipped with a polarized line plug — a plug with one
blade wider than the other. This plug will fit into the power
outlet only one way. If you are unable to insert the plug
fully into the outlet, try reversing the plug.
Flexible Antenna
Attach the flexible antenna to the
BNC
connector.
Belt Clip
Do not tighten the screws too tight.
You can damage the case or clip.
9
Basic Operation
Note: You can fold out the Front Cover to see the
Controls and Indicators while reading this Guide.
Setting the Squelch
To set the Squelch, you must be in the Manual Mode. No
signal should be present when adjusting squelch.
1.
Press
Muntil
you do not hear a
signal.
2. Adjust
VOLUME
to a
comfortable listening
level.
3. Think of the Squelch Control as a gate. Turn
SQUELCH
fully counter-clockwise. This raises the
“Squelch Gate” so high that no signals can get
through.
Strong Signals
Medium Signals
VOLUME
SQUELCH
Weak Signals
Noise
PHONE
10
4. 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.
Strong Signals
Medium Signals
Weak Signals
Noise
PHONE
SQUELCH
VOLUME
5. Turn
SQUELCH
back counter-clockwise just until the
hiss stops. Now the “Squelch Gate” allows only
strong signals through.
Strong Signals
Medium Signals
Weak Signals
Noise
PHONE
SQUELCH
VOLUME
11
Keylock
Key Lock prevents accidental key entries during scanning.
1. To lock the keypad,
press and hold
until the key symbol
appears.
2. To unlock the keypad,
press and hold
until the key symbol
disappears.
K
K
12
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