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How to Use Your Cobra UK 25 LTD ST
Contents
English (Section A)Features...........................................................................................1Included Accessories.................................................................A1Controls & Indicators ................................................................A2Our Thanks to You ......................................................................A3
SoundTracker™Installation
Location.......................................................................................2Mounting and Connection...................................................2
AntennasCB Antenna................................................................................6Marine Installation...................................................................6
Ignition Noise Interference ...................................................7Operating Your UK 25 LTD ST
Turning On Your CB.................................................................8Setting Channel Selector.......................................................9To Receive ...................................................................................10Selecting a Channel................................................................10S-Meter.........................................................................................11SoundTracker™ System.........................................................12Activating SoundTracker™ ..................................................13NB, Off (Noise Blanker) Switch.............................................14Bright/Dim Switch....................................................................15RF Gain Control.........................................................................15Setting Squelch.........................................................................16To Transmit.................................................................................18Setting Tone Control...............................................................19Transmit.......................................................................................20RF Meter......................................................................................20External Speaker.......................................................................21PA (Public Address)..................................................................22Temporary Mobile Set-Up.....................................................24Home And Office Set-Up.......................................................25
How Your CB Can Serve You...................................................26A Few Rules You Should Know............................................26Local Laws, or Regulations....................................................27CB 10 Codes...............................................................................28
Frequency Ranges ......................................................................30UK 25 LTD ST Specifications ..................................................31Optional Accessories.................................................................32Deutsch ................................................................................Abschnitt BEspañol.....................................................................................Sección CFrançais ....................................................................................Section DItaliano .....................................................................................Sezione E
Features of This Product
• CEPT 40 ChannelsUK 40 Channels
• Complies with UK MPT 1382
• SoundTracker ™ System
• Heavy-Duty Dynamic Microphone
• Full 4 Watts RF Power Ou t p u t
• Instant Channel 19 and 9
• Front Panel 4-Pin MicrophoneConnector
• Switchable Noise Blanker-Automatic Noise Limiter
• RF Gain
• 2.75-metre Microphone Cord
1
NOTICEA licence is required foruse in the UK.CB licens-ing applications can beobtained from The RadioLicensing Centre, P.O.Box 885, Bristol,BS995LG,UK or contact yourlocal CB dealer for additional information.
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 1
InstallationInstallation
Location
32
Mounting andConnection
Mounting and ConnectionHold the radio with the mounting bracket inthe exact desired location. If there is no inter-ference, remove the bracket and use it as atemplate to mark the location for the mount-ing screws.
LocationPlan location of transceiver and microphonebracket before starting the installation.
Select a location that is convenient for operation,yet does not inte rfe re with the dri ver or passenger.
The transceiver is usually mounted to the under-side of the dash with the microphone bracketbeside it.
Note
The transceiver is held in the universal mounting bracket bytwo thumbscrews which allowfor adjustment at a convenientangle.
The bracket includes two self-tapping screws and star wash-ers. The mounting must bemechanically strong and conveniently located.
continued
Drill the holes and secure the bracket.2
1
Connect the antenna cable plug to the recep-tacle marked “ANT” on the back of the unit.
3
cb transceiver
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 2
InstallationInstallation
54
Note
Connecting to a fuse circuit controlled by the ignition switchprevents the unit from being lef ton accidentally, and also permits operating the unit without running the engine.
Note
In positive earth vehicles the redwire goes to the chassis and theblack wire is connected to theignition switch.
In a negative earthed vehicle, connect the redlead of the DC power cord to an accessory 12volt fuse.
Connect the black lead to the negative side ofthe vehicle. This is usually the chassis. Any con-venient location with a good electrical contact(remove paint) may be used.
4
5
Plug power cable into back of unit marked“Power”. Be sure to observe polarity markings.
Mount the microphonebracket on the side of theunit (nearer the driver)using two screws sup-plied. Bracket should beplaced under the dash so that microphone isreadily accessible.
6
7
Attach the 4-pin microphone cable to recepta-cle on front of unit and Install unit in bracketsecurely.
8
Note
Before installing the CB radio,visually check the vehicle’sbattery connection to deter-mine which terminal, positiveor negative, is earthed to theengine block (or chassis). Anegatively earthed vehiclehas its negative lead earthedto the chassis.
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 4
Ignition Noise InterferenceAntennas
Use of a mobile receiver at low signal levels isnormally limited by the presence of electricalnoise. The primary source of noise in cars is fromthe alternator and the ignition system. Typically,when signal level is adequate, the backgroundnoise does not present a serious problem. Also,when extremely low-level signals are beingreceived, the transceiver may be operated withthe vehicle’s engine turned off.The unit requiresvery little current and therefore will not signifi-cantly discharge the vehicle’s battery.
Even though the Cobra UK 25 LTD ST has an auto-matic noise limiter, in some installations ignitioninterference may be high enough to make goodcommunications impossible. Many possibilitiesexist and variations between vehicles requiredifferent solutions. Consult your COBRA dealer ora 2-way radio technician for help in locating thesource of a severe noise.
CB AntennaThe antenna is critical in affecting transmissiondistance. Only a properly matched antenna sys-tem will allow maximum power output. Cobraloaded type antenna models are highly recom-mended for most installations.
Marine InstallationThe transceiver will not operate at maximum effi-ciency in a boat without an earth plate, (unless ithas a steel hull). Before attempting installation ,consult your dealer for information regarding anadequate earthing system and prevention ofelectrolysis between fittings in the hull and water.
CB Antenna
7
Note
For optimum performance inpassenger cars the ideal anten-na location is on the centre ofthe roof. Second choice is on thecentre of the boot.
NoteAntenna bracket must be earth-ed to the chassis of the vehicle .
6
1 A standard antenna connector is provided on the transceiver for easy connection.
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 6
The CB/PA button should be in the CB position.
Operation
9
Operation
Turning On Setting ChannelSelector
8
Turning On Make sure the power cord, antenna and micro-phone are connected to their proper connectorsbefore starting.
Setting Channel Selector
2
1
Ro t ate the On/Off Volume knob c l oc kw i s e toa normal listening level.
Select one of forty channels and adjust volume. The selected channel is indicated bythe LED readout directly above the channelselector knob
1
Setting Band Mode Selector
Setting BandMode Selector
To operate in UK band, set control to UK, tooperate in EU band, set to EU.
1
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 8
Rotate the On/Off Volume knob clockwise.The green RT/TX LED will be illuminated.
Operation
11
Operation
10
S-MeterS-MeterSwings proportionately to strength of incomingsignal when receiving.
Switch to NOR to select desired channel.1
Selecting AChannel
Selecting A Channel
Note
Switch to 9 or 19 (Information)for instant access to thesechannels.
To Receive
1
To Receive
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 10
OperationOperation
1312
ActivatingSoundTracker™
Push and release the ST button. Red LED is illuminated when SoundTracker™ is turned on.
1
The SoundTrackerTM SystemWhile previous systems only “blanket out” or limitnoise in higher sound frequencies, the revolution-ary new SoundTrackerTM System actually reducesnoise while leaving the signal intact in the recep-tion mode. In the transmission mode, it actuallystrengthens the signal,providing you with a significant reduction in noise on reception and transmission.
Sound clarity is measured by the ratio of the signal level to the noise level.The higher the signal-to-noise ratio,the better the sound.
How SoundTrackerTM WorksOn Reception - “Cuts noise coming in”
With a normal CB, distant signals fall belowthe squelch level and are unintelligible. With aSoundTrackerTM CB, the noise level is cut by up to90%,which increases the signal-to-noise ratio and dramatically improves signal clarity.This alsoallows you to reduce the squelch level significant-ly, which greatly expands your listening range.
On Transmission - “Strengthens signals going out”
A SoundTrackerTM CB strengthens the transmit signal by more effectively using the available RFpower output of the CB. The result is improvedtransmission signal clarity and an expanded transmission range.
Note
SoundTracker™ gives you clearer, cleaner reception toimprove CB communicationswhile on the air.
Activating SoundTracker™
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 12
When switched to NB/ANL position the RFNoise Blanker and Automatic Noise Limiter isactivated, providing increased noise filtration.
When switched to the ANL the Automatic Noise Limiter is activated. This helps reducenoise created by the vehicle’s electronics.
When switched to OFF position Noise Blanking and the Automatic Noise Limiting Filtration will be turned off.
OperationOperation
1514
NB/ANL, ANL,OFF (NoiseB l a n k e r, AutomaticNoise LimiterSwitch
RF Gain Control
Bright/Mid/DimSwitch
RF Gain ControlThe RF Gain is used to optimize reception instrong or weak signal areas.
Bright/Mid/Dim Switch
Note
The RF Gain is used to optimiz ereception in weak signal areas.
Note
The RF noise blanker is veryeffective in reducing repetitivenoises such as ignition inter fer-ence.
Switch to BRT, MID or DIM to control bright-ness of the channel indicator and multi-func-tion meter for day or nighttime driving.
Rotate the RF Gain knob anticlockwise toreduce gain in strong signal areas. In weak signal areas turn clockwise to increase gain.
1
NB/ANL,ANL, Off Switch
11
2
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 14
Full clockwise rotation closes the “gate”allowing only very strong signals to en ter.
Full anticlockwise rotation opens the “gate”allowing all signals in.
To achieve the Desired Squelch Setting (DSS),turn the Squelch control anticlockwise untilyou hear noise. Now turn the control clockwiseuntil the noise just stops. This is the DSS set -ting.
Setting Squelch Squelch is the “control gate” for incoming signals.
1716
Operation Operation
2
1
3
Gate open
Gate set to Desired Squelch Setting (DSS)
Gate closed
Setting Squelch
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Setting Tone ControlTo Transmit
19
To Transmit
18
Setting ToneControl
Caution!
Be sure the antenna is properlyconnected to the radio beforetransmitting. Prolonged trans-mitting without an antenna,orwith a poorly matched antenna,can cause damage to the trans-mitter.
Operation Operation
1Select desired channel.1 Tone Control is used to set the desirable tone level of received audio signals.
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 18
Transmit
Push and hold microphone button to transmit.Transmitter is now activated.When transmit-ting, hold the microphone two inches fromyour mouth and speak in a clear, normal voice.Release to receive.
1
Transmit
2120
Operation Operation
External SpeakerExternal SpeakerThe external Speaker jack is used for remotereceiver monitoring.
Note
The external speaker shouldhave 8-ohm impedance and berated to handle at least 4 watts.When the external speaker isplugged in,the internal speakeris automatically disconnected.
Note
Cobra external speakers arerated at 10 watts.
Connect an external speaker to the externalspeaker jack on the rear panel.
1
RF Meter RF MeterThis meter swings proportionately to the RFoutput (outgoing signal) while transmitting.
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 20
OperationOperation
2322
PA (PublicAddress)
PA (Public Address)
Connect an external PA speaker to the PA jackon the rear panel.
Note
Speaker should have 8-ohmimpedance and be rated tohandle at least 4 watts.
Note
The speaker should be direc tedaway from the microphone toprevent acoustic feedback.
Note
Adjust volume control to nor-mal listening level. Activity onthe CB channel will be heardthrough the PA speaker.
1
Set CB/PA switch to PA position.
Push and hold microphone button and speakin a normal voice.Your voice will sound on thePA speaker.
2
3
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 22
Home And Office Set-UpTemporary Mobile Set-Up
2524
TemporaryMobile Set-Up
Temporary Mobile OperationFor temporary mobile operation you may want topurchase an optional cigarette lighter adapterfrom your COBRA dealer.This adapter and a mag-netic mount antenna allow you to “install” yourtransceiver quickly for temporary use.
Base StationOperation(From 220/240VAC DomesticCurrent)
Base Station Operation(From 220/240V AC Domestic Current)To operate your transceiver from home or officeyou will need a 13.8 volt DC Power Pack rated at aminimum of 2 amps, and a properly installed basestation antenna.
Warning! Do not attempt to operate thistransceiver by connecting itdirectly to 220/240 V AC.
1 Connect the red (+) and black (-) leads of the transceiver to the correspondingterminals of the power pack.
Connect properly installed and matched basestation antenna.
Plug power cable into back of unit marked“Power”. Be sure to observe polarity markings.
2
3
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 24
How Your CB Can Serve YouHow Your CB Can Serve You
2726
The use of this CB product involves the pub-lic airways and its use may be subject tolocal laws or regulations. Before using theproduct you should check to see that thecontemplated use does not violate anyapplicable local law or regulation.
• Warn of traffic delays ahead
• Provide weather and road information
• Provide help in an emergency
• Provide direct contact (subject toconditions) with home or office
• Get local information to find destination
• Let you communicate with family and friends
• Suggest spots to eat and sleep
• Keep you alert while travelling
A Few Rules You Should Know
A. Co nve r s ations should not last more than 5 min-u te s with another station. A one minute breakshould be taken to let others use the channel.
B. You should not blast others off the air by use of illegally amplified transmitters or illegally high antennas.
C. You should not use the CB to promote illegal activities.
D. Bad language should not be used.
E. You should not transmit music with a CB.
F. You should not use your CB to sell merchandise or professional services.
A Few Rules You Should Know
Local Laws orRegulations
Local Laws or Regulations
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 26
How Your CB Can Serve YouHow Your CB Can Serve You
2928
Code Meaning
10-29 Time is up for contact
10-30 Does not conform
10-33 Emergency traffic
10-34 Trouble at this station
10-35 Confidential information
10-36 Correct time is
10-37 Breakdown truck needed at
10-38 Ambulance needed
10-39 Message delivered
10-41 Turn to channel
10-42 Traffic accident at
10-43 Traffic delay at
10-44 Have a message for
10-45 All units within range please repor t
10-50 Break channel
10-60 What is next message number?
10-62 Unable to copy. Use phone
10-63 Net directed to
10-64 Net clear
10-65 Awaiting your next message/assignment
10-67 All units comply
10-70 Fire at
10-71 Proceed, transmission in sequence
10-77 Negative contact
10-81 Reserve hotel room for
10-82 Reserve room for
10-85 My address is
10-91 Talk closer to mic
10-93 Check my frequency on this channel
10-94 Give me a long count
10-99 Mission completed, all units secure
10-200 Police needed at
CB 10-CodesCitizen Bands have adopted the “10-CODES” forstandard questions and answers. These codesp rovide quick and easy co m m u n i cat i o n ,e s pe c i a l l yin noisy areas. Following are some of the morecommon codes and meanings:
Code Meaning
10-1 Receiving poorly
10-2 Receiving well
10-3 Stop transmitting
10-4 OK,message received
10-5 Relay message
10-6 Busy, stand by
10-7 Out of service, leaving air
10-8 In service, subject to call
10-9 Repeat message
10-10 Transmission completed, standing by
10-11 Talking too rapidly
10-12 Visitors present
10-13 Advise weather/road conditions
10-16 Make pick-up at
10-17 Urgent business
10-18 Anything for us?
10-19 Return to base
10-20 My location is
10-21 Call by phone
10-22 Report in person to
10-23 Stand by
10-24 Completed last assignment
10-25 Can you contact
10-26 Disregard last information
10-27 Moving to channel
10-28 Identify your station
CB 10-Codes
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 28
UK 25 LTD ST SpecificationsFrequency Ranges
3130
GENERALCHANNELS . . . . . . . . . . . . . . . . . . . . . . . CB - 40 CH FREQUENCY RANGE (CEPT FM). . . . . 26.965 TO 27.405 MHzFREQUENCY RANGE (UK FM). . . . . . . 27.60125 TO 27.99125 MHzFREQUENCY TOLERANCE. . . . . . . . . . 0.005 %FREQUENCY CONTROL . . . . . . . . . . . . PLL (PHASE LOCK LOOP) SYNTHESIZEROPERATING TEMPERATURE RANGE. . . . . . . . . . . . . . . . . . . . . . . . . . . -20° C TO + 55° CMICROPHONE . . . . . . . . . . . . . . . . . . . . PLUG-IN DYNAMICINPUT VOLTAGE . . . . . . . . . . . . . . . . . . 13.2VDC nom.(positive or negative earth) CURRENT DRAIN TRANSMIT: AM FULL MOD.,1.5A (MAXIMUM)
RECEIVE:SQUELCHED, 0.3A;FULL AUDIO OUTPUT, 1.2A (NOMINAL)
SIZE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .219 mmX 162 mmX 56 mm(8-5/8”D X 6-3/8”W X 2-13/64”H)
WEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . .1.8 kg. (4 LBS.)ANTENNA CONNECTOR . . . . . . . . . . . .UHF; SO-239METER . . . . . . . . . . . . . . . . . . . . . . . . . . .ILLUMINATED;INDICATES RELATIVE
POWER OUTPUT AND RECEIVED SIGNAL STRENGTH
TRANSMITTERPOWER OUTPUT . . . . . . . . . . . . . . . . . .4 WATTSMODULATION . . . . . . . . . . . . . . . . . . . .FM (FREQUENCY MODULATION)FREQUENCY RESPONSE . . . . . . . . . . . .300 TO 3000 HzOUTPUT IMPEDANCE . . . . . . . . . . . . . .50 OHMS,UNBALANCED
RECEIVERSENSITIVITY . . . . . . . . . . . . . . . . . . . . . . .LESS THAN 6dB µV FOR 20 dB SINADSELECTIVITY . . . . . . . . . . . . . . . . . . . . . .6 dB @ 7 kHz, 60 dB @ 10 kHzIMAGE REJECTION . . . . . . . . . . . . . . . . .80 dB, TYPICALADJACENT-CHANNEL REJECTION . . .60 dB, TYPICALIF FREQUENCIES . . . . . . . . . . . . . . . . . .DOUBLE CONVERSION:1ST: 10.695 MHz
2ND:455 kHzAUTOMATIC GAIN CONTROL (AGC) .LESS THAN 10 dB CHANGE IN AUDIO
OUTPUT FOR INPUTS FROM 10 TO 50,000 MICROVOLTS
RF GAIN RANGE . . . . . . . . . . . . . . . . . . .40 dBNOISE BLANKER . . . . . . . . . . . . . . . . . . .RF TYPESQUELCH . . . . . . . . . . . . . . . . . . . . . . . . .A D J U S TA B L E ;THRESHOLD LESS THAN 1µVAUDIO OUTPUT POWER . . . . . . . . . . .4 WATTSFREQUENCY RESPONSE . . . . . . . . . . . .300 TO 3000 HzDISTORTION . . . . . . . . . . . . . . . . . . . . . .LESS THAN 7% @3 WATTS @ 1000 HzBUILT-IN SPEAKER . . . . . . . . . . . . . . . . .8 OHMS,5WE XTERNAL SPEAKER (NOT SUPPLIED) 8 OHMS; DISABLES INTERNAL SPEAKER
WHEN CONNECTED
PA SYSTEMPOWER OUTPUT . . . . . . . . . . . . . . . . . .4 WATTS INTO EXTERNAL SPEAKEREXTERNAL SPEAKER FOR PA . . . . . . . .8 OHMS, 4 WATTS MINIMUM,(NOT SUPPLIED)
(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)
1 26.965 21 27.2152 26.975 22 27.2253 26.985 23 27.2554 27.005 24 27.2355 27.015 25 27.245
6 27.025 26 27.2657 27.035 27 27.2758 27.055 28 27.2859 27.065 29 27.29510 27.075 30 27.305
11 27.085 31 27.31512 27.105 32 27.32513 27.115 33 27.33514 27.125 34 27.34515 27.135 35 27.355
16 27.155 36 27.36517 27.165 37 27.37518 27.175 38 27.38519 27.185 39 27.39520 27.205 40 27.405
Channel ChannelCB Freq. CB Freq.Channel In MHz Channel In MHz
The CO B RA UK 25 LTD ST tra n s ce i ver re p re s e nts one of the most adva n ced FM two -way ra d i o s.This unit fe at u res adva n ced Phase Lock Loop (PLL) circ u i t ry prov i d i n gco m p l e te cove rage of all 40 CEPT and UK FM CB channels.
1 27.60125 21 27.801252 27.61125 22 27.811253 27.62125 23 27.821254 27.63125 24 27.831255 27.64125 25 27.84125
6 27.65125 26 27.851257 27.66125 27 27.861258 27.67125 28 27.871259 27.68125 29 27.8812510 27.69125 30 27.89125
11 27.70125 31 27.9012512 27.71125 32 27.9112513 27.72125 33 27.9212514 27.73125 34 27.9312515 27.74125 35 27.94125
16 27.75125 36 27.9512517 27.76125 37 27.9612518 27.77125 38 27.9712519 27.78125 39 27.9812520 27.79125 40 27.99125
Channel ChannelCB Freq. CB Freq.Channel In MHz Channel In MHz
CEPT Frequencies UK Frequencies
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 30
You Can Find These High-quality Accessories At YourLocal Cobra CB Dealer
Optional AccessoriesOptional Accessories
3332
Dynamic External Speaker
For in-vehicle useCS 100
Noise Cancelling ExternalSpeaker
For in-vehicle useCS 300
Dynamic Noise CancellingWith Talk Back ExternalSpeaker
For in-vehicle useCS 500
Power Microphone
For in-vehicle useCA 75
Noise Cancelling/PowerMicrophone
For in-vehicle useCA 77
Echo/Noise CancellingMicrophone
For in-vehicle useCA 79
Replacement DC Power Cord
For in-vehicle use
Replacement MountingBracket
For in-vehicle use
Replacement Thumb Screws
For in-vehicle use
Replacement MicrophoneBracket
For in-vehicle use
28” Full Range Centre Load,Magnetic Mount Antenna
For in-vehicle useAT 35
25”Glass Mount Antenna
For in-vehicle useAT 55
39” Full Range Base Load,Magnetic Mount Antenna
For in-vehicle useAT 70
44” Full Range, Centre Load,Dual Band CB/WX Antenna
Allows greater transmissionrange from a moving vehicle.ATW- 4 0 0
Replacement DynamicMicrophone
For in-vehicle useCA 73
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 32
Notes
34
Notes
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 34
O pe rating Instru ctions for your Co b ra UK 25 LTD ST CBRa d i o
Bedienungsanleitung für lhr Modell Co b ra UK 25 LT D S TC B - Fu n kg e r ä t
I n s t ru ct i vo de uso de la radio de banda ciudadana (CB)Co b ra UK 25 LT D S T
I n s t ru ctions d’ u t i l i s ation du po s te de radio CB UK 25 LT D S Tde Co b ra
Is t ruzioni per l’uso del modello Co b ra UK 25 LT D ST Radio CB
U K25 LTD ST
Cobra Electronics Corporation6500 West Cortland StreetChicago, IL 60707 USA
www.cobraelec.com
Cobra Electronics Corp.© 1999“Ingenious Prod u cts for Easier Co m m u n i cat i o n .”
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 35
Thank you for purchasing the Cobra UK 25 LTD STCB Radio. Properly used, this Cobra product willgive you many years of reliable service.
SoundTracker TM
“Cuts noise coming in...strengthens signals going out.”
This patent-pending technology dramaticallyimproves transmission and reception of CB signals.
The revolutionary SoundTrackerTM System recon-figures the transmission signal,allowing it to betransferred more efficiently through cluttered air-waves.
At the same time, it significantly reduces theamount of static on all incoming CB signals.
The end result is a cleaner, clearer reception ofsignals and a more powerful transmission whichdramatically improve CB communications.
Cobra on the World Wide Web:Frequently Asked Questions(FAQ) can be found on-line at:www.cobraelec.com
Our Thanks to You
A3
UK25LTDST-UK/English.qx 6/22/99 8:41 AM Page 37
Thank you for purchasing the Cobra UK 25 LTD STCB Radio. Properly used, this Cobra product willgive you many years of reliable service.
SoundTrackerTM
“Cuts noise coming in...strengthens signals going out.”
This patent-pending technology dramaticallyimproves transmission and reception of CB signals.
The revolutionary SoundTrackerTM System recon-figures the transmission signal,allowing it to betransferred more efficiently through cluttered air-waves.
At the same time, it significantly reduces theamount of static on all incoming CB signals.
The end result is a cleaner, clearer reception ofsignals and a more powerful transmission whichdramatically improve CB communications.
Controls and Indicators
Cobra on the World Wide Web:Frequently Asked Questions(FAQ) can be found on-line at:www.cobraelec.com
Our Thanks to You
A3A2
1. 4 - Pin Mi c ro p h o n e Co n n e cto r
2. Power On/Off/Volume
3. Squelch
4. Tone Control
5. RF Gain
6. Band Selector
7. Channel Selector
8. LED Channel Display
9 Sound Tracker™ LED
1 0 . RX (Receive)/ TX (Transmit)LED Indicator
11 . Sound Tracker™ On/Off
12 . Channel 19/Channel 9/ Normal Switch
13 . Dimmer Switch
1 4 . CB/PA Switch
1 5 . NB/ANL ANL/Off Switch
1 6 . Signal Strength Meter
1 7 . Microphone
Rear Panel
1 8 . Public Address Speaker Jack
1 9 . External Speaker Jack
2 0 . Antenna Connector
2 1. Power Jack
1 2 4 53 6
2 0 2 1
1 69
1 0
1 8 1 9
1 21 31 41 5
1 7
81 1
7
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