4W MOBILE CB TRANSCEIVER

INSTRUCTION MANUAL

www.ttikorea.co.kr

CONTENTS

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1.2.3.4.

5.6.7.8.9.

10.11.12.13.14.15.

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1)2)3)4)5)6)7)8)9)

10)11)12)13)14)15)16)17)18)19)20)21)

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IntroductionSupplied AccessoriesInstallationTransceiver Controls and Functions

LCD DisplayMicrophoneMenu Setting ModeHow to Operate the TransceiverBand SelectionTrouble ShootingCE DeclarationSafety RequirementSpecificationRestrictions on the useFreequency Table

Channel SelectorDual WatchMemory Channel SelectorsEmergency ButtonLCD Display Scan/Lock ButtonAM/FM and LCR ButtonCB/PA Selector ANL/OFF SelectorLocal/DX selectorVolume and Power On/Off KnobQuick Up/Quick Down SelectorMicrophone Gain KnobRF Gain KnobSquelch Control knobMicrophone JackAntenna ConnectorS-MeterPA JackEXT JackPower 13.8V DC

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1. Introduction

1 unit1 unit1 unit1 unit2 pieces3 pieces2 pieces1 piece

TCB-881 transceiver is designed to have a good performancein any conditions that the transceiver operates, using ruggedbuild chassis, PCB’s and components. This transceiver is alsodesigned for users’ convenience, implementing human ergono-mics to locate the knobs and buttons in the proper places. Thecombination of well designed knobs and buttons as well as userfriendly graphic layouts will lead users to quickly adapt themsel-ves for the easy operation. The newly applied menu mode willmake professional users more satisfactory with pleasure. Theelegant and luxury blue LED light supporting the face designwill go well with any vehicles.This instruction manual has been designed to enable you to getthe best use from your CB Transceiver, therefore you are reco-mmended to take a few minutes to read this instruction manualbefore initial use of your CB Transceiver.

Your transceiver is supplied with a full range of accessories tohelp you get started and virtually benefit from all the featuresstraight away.TCB-881 transceiverMicrophone with cordPower cableRadio mounting bracketRadio mounting thumb screw with rubber washerMounting screw with washer (for transceiver bracket)Mounting screw with washer (for microphone bracket)Microphone mounting bracket

2. Supplied Accessories

Plan the location of the transceiver and microphone first, whichis most convenient for the operation. The transceiver shouldnormally be mounted horizontally, but may be mountedvertically. The bracket supplied can be fitted above or below thecase allowing the TCB-881 to be cradled by the bracket orsuspended from it.

3. Installation

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Consider that this location of the transceiver should notinterfere with the driver and passengers. Choose a spot wherethe microphone and all controls are easily accessible.

1) Put the mounting bracket on the proper location where youare going to install.

2) Drill holes and fix mounting bracket on the location.3) Connect the antenna cable plug to the standard receptacle

on the transceiver, whichis marked "ANT".

4) Connect the power cable directly to the vehicle battery orfuse box of the car. Be careful to make sure of the polarity ofthe battery first and connect the cable.(Red: Positive Pole(+),Black: Negative Pole(-). The same colours are shown on thebattery and in the fuse box of the car.)

5) Connect the power cable to the transceiver cable.

6) Mount the microphone bracket on one side of the transceiver,or near it using two screws included.

7) Connect the microphone to the transceiver’s microphonereceptacle. Now you areready to operate thetransceiver.

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It is very important to select a good quality high efficiency27MHz antenna. A poor quality antenna or one not designed forthe 27MHz band will give very poor performance and couldcause damage to the transceiver.

1) Place the antenna as high as possible.2) The longer the antenna is, normally the better is the

performance of the transceiver.3) Try to mount the antenna in the centre of the surface that

you select.4) Make sure that you have a solid metal-to-metal ground

connection.5) Be careful not to damage the cable during the installation.

Installing An Antenna

Warning : Never try the operation of your transceiver beforeconnecting a proper antenna in order not to cause any damage.

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4. Transceiver Controls and Functions

1) Channel SelectorTurn right or left, and this allows you to select thechannel one by one that you like to use.

2) Dual WatchPress momentarily this button, and this allows youto monitor two channels that you pre-selected andmemorized. You may select the emergencychannel. To stop this function, press momentarily

again this button.

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3) Memory Channel SelectorsMomentary press allows you to directly access thepre-memorized channels (Memory Recall).The LCD displays one of the memory number icons(M1, M2, M3 and M4).

To set the dual watch for the first time, press this buttonmomentarily while you are on the current (primary) channel.The DW icon will be blinking.Select another channel that you like to use as sub-channel (se-condary channel) during the icon’s blinking using the channelselector or quick up/quick down selector. Press this buttonmomentarily again to activate the dual watch. The icon stopsblinking and keeps being displayed. The dual watch starts.

To memorize channels (Memory Store), first select the channelthat you are going to memorize and press one of the memorychannel selectors for more than 3 seconds. This will make thechannel memorized and at the same time the transceiver startsto operate on the same channel.

To return to the previous channel operation, momentarily pressthe memory channel selector, or use the channel selector orquick up/quick down selector.

When you select a channel and the channel is same as one ofthe memorized channels, the matching memory number iconblinks.

To change the dual watch channels, press the DW buttonduring dual watch operation. The dual watch stops.

If you press the PTT button whilst receiving a signal in dualwatch mode the transceiver will transmit on the currentlydisplayed channel. If you press the PTT button when no signalis present the transceiver will transmit on the primary channel.Emergency Scan : Press dual watch button for about two (2)seconds. The transceiver starts the emergency scanning. Thetransceiver visits the emergency channel once in every secondduring this scanning. Press the scan button to deactivate thisscanning.

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4) Emergency ButtonPressing this button will lead you to the emergencychannel, "CH 9" and the EMG icon will bedisplayed. The channel selector, quick up/quickdown selector and any memory channel selectors

will not work. To return to the previous operation mode,momentarily press the emergency button again.

5) LCD DisplayMost of the operationalinformation is displayed.Please see item no. 5 for thedetails of information.

6) Scan/Lock ButtonScan : Press this button momentarily to startscanning upward to catch any channels that areoccupied by others.

To activate/deactivate the channel scan, press the Scan buttonbriefly. The Scan icon will appear when the channel scan isactive. Scanning will only stop when you deactivate the scanfunction.

Turn the channel selector counter-clockwise during scanning inorder to change the scanning direction.The transceiver will scan through the whole transceiverchannels. If your transceiver detects a valid signal the scan willpause for the period that has been set by the menu modesetting (continuously receiving or 1-99 seconds for scanreceive time and immediate response or 1-99 seconds for scandelay time).

If you press the PTT button when your transceiver detects asignal, the radio will transmit on the same channel. Scanningwill resume after the scan receive time and/or the scan delaytime. Use the channel selector or quick up/quick down selectorto resume scanning immediately.

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7) AM/FM and LCR ButtonWhen the transceiver is used in UK, UE, or ECfreequency band modes this button activates ordeactivates Last Channel Recall function. In allother modes (where national regulations permit

this), this button allows user to switch between AM and FMmodes by momentarily pressing this button.

8) CB/PA SelectorThis selector should be on CB location in order tooperate the CB transceiver. To make a publicannouncement, the PA can be selected. In thiscase only the PTT button works and you can speak

through the PA speakers.

9) ANL/OFF SelectorBy selecting the ANL location, the transceiver canreduce such impulsive noise as generated byengine of your vehicle or external sources. Thisworks only when the transceiver is in AM mode.

10) Local/DX selectorTo receive weak signals, locate the selector on theDX position. While the transceiver is in the locationwhere the signal is very strong, location theselector on the Local position. This gives

attenuation to get better audio sound.

Lock : Press this button for more than 2 seconds to activateand deactivate the keypad lock function. This function locksonly the channel selector, quick up/quick down buttons, AM/FMbutton and scan button. Other buttons and selectors worknormal.

If you press the PTT button during scanning, the radio willreturn to your original channel. Scanning will resume after thescan receive time and/or the scan delay time. Use the channelselector or quick up/quick down selector to resume scanningimmediately.

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12) Quick Up/Quick Down Selector

13) Microphone Gain Knob

14) RF Gain KnobTurn this knob clockwise until you get better RFgain. You may need to decrease the sensitivity byturning the knob counter-clockwise when there is avery strong signal.

15) Squelch Control knob

16) Microphone JackInsert the microphone into this jack. Use the guidefor easy connection.

11) Volume and Power On/Off Knob

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To switch on the transceiver turn this knobclockwise. After clicking sound the transceiver is switched on. The more you turn this knob clockwise, the bigger the audio sound grows.

Turn this selector clockwise to increase channel numbers by 10 steps. Turning this selector counter-clockwise reduces the channels by 10 steps.

Turn this knob clockwise and counter-clock untilyou get better microphone gain while you move the microphone to the optimum distance from your mouth.

Main Squelch Control: Turn this knob counter-clockwise until you hear the background noise and then turn the knob a little clockwise until the noise disappears. In this way, you get the best receive sensitivity.

DSS : If you like to use the DSS(Dynamic Squelch System), turn this knob counter clockwise until hearing the click sound. To return to the manual squelch turn this knob clockwise until hearing the click sound and then follow the manual squelch setting procedure.

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19) PA JackConnect a loud speaker to use this transceiver asan audio amplifier.

20) EXT JackConnecting a loud speaker to this port makes thebuilt-in speaker turned off.

21) Power 12V/24 DCConnect the power supply cable to this port.

5. LCD Display

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Selected Frequency BandScanTransmitFM ModeAM ModeChannel DisplaySignal Strength MeterMemory Channel ActivatedReceiveDual Watch ModeKeypad LockEmergency Channel Display

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7 12119 108

6

18) S-MeterConnect an external S-Meter (This is not supplied.)to this port.

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17) Antenna ConnectorInsert the mail connector of the antenna cable intothis female antenna connector.

Note : This transceiver works most properly at 13.2V DC input. And one high voltage protection circuit is installed to protect this transceiver from 24V DC connection.

6. Microphone

7. Menu Setting Mode

1 Up Button : Use this button to changethe channels upward.

2 Down Button : Use this button tochange the channels downward.

4 PTT Button : While pressing thisbutton, you can transmit.

5 6 Pin Microphone Connector :Connect this to the microphone jackon the front panel of the transceiver.

3 Lock Button : This locks the up buttonand down button of the microphone.Also, this lock works same as the lockbutton on the transceiver front panel.

On( ) / Off( )

High( ) / Low( ) / Off( )

Off( ) and 1~99 Sec.

Continue( ) and 1-99 Sec.

Off( ) and 1~99 Sec.

Beep Tone

Backlight Dimmer

Scan Delay Timer(after Receiving signal)

Scan Receive Timer

Time-out Timer

Pressing the Lock button of the microphone, turn on thetransceiver. The transceiver goes to the Menu Setting Mode,which has the following menu features. This menu settingmode allows you to program user preferences, activatefeatures and use advanced functions.

Display SettingsFunctions

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Note :1. Use Channel Selector to selecte the main menu features such as Beep Tone, Time-out Timer, Scan Receive Timer, Scan Delay Timer, Backlight Dimmer and Backlight Timer.2. Use AM/FM button to enter value setting level.3. Use Channel Selector to select or change any value that you

like to have while the values are blinking.4. Use SCAN button to return to the previous main menu

features.5. Press Lock button or PTT button of the Microphone to

complete the selections and changes and return to thestand-by mode. Or the selections and changes will beautomatically confirmed after 5 seconds of the selectionsand changes. Using Scan button to return to the previousmain menu features will be accompanied by the automaticconfirmation of the selected values and changes.

8. How to Operate the Transceiver

1) Make sure the microphone is connected to themicrophone jack.

2) Make sure the power cable is connected properly.3) Make sure the antenna is connected to the antenna

receptacle.4) It is better to put the squelch control knob turned fully

counter-clockwise.5) Turn on the transceiver and control the volume level.6) Adjust the squelch control knob to the optimum level. 7) Select your desired channel.8) To transmit, press the PTT button and speak to the

microphone.9) Release the PTT button to receive.

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9. Band Selection

Pressing AM/FM button and Scanbutton at the same time, turn on thetransceiver. Using the channelselector, select the band that you are

going to select. The LCD display offers you the bandinformation. The band chart for each area is as follows.Press AM/FM button while the band information is blinking orwait for 5 seconds to complete the selection and go to thetransmit and receive mode. This transceiver has "EC" bandsetting when it is shipped out from the factory.

UE(EU/UK)

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I2

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EU

EC

E

F

PL

UK

DisplaySettings Band

Europe 40 Ch FM 4W

Spain 40 Ch AM/FM 4W

France 40 Ch FM 4W, 40 Ch AM 4W

UK 40 Ch FM 4W (British Frequencies)

Italy 40 Ch AM / FM 4W

Italy 34 Ch AM / FM 4W

Germany 80 Ch FM 4W, 12 Ch AM 4W

Germany 40 Ch FM 4W, 12 Ch AM 4W

Europe 40 Ch FM 4W, 40 Ch AM 4W

UK 40 Ch FM 4W (British Frequencies)+ CEPT 40 Ch FM 4W (EC)

Poland 40 Ch AM / FM 4W(Polish Frequencies : 5KHz)

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10. Trouble Shooting

11. CE Declaration

If you experience problems with your TCB-881 transceiver, firstcheck the power supply source. Poor connection of the powersupply source can cause problems such as no transmission,no reception or poor reception, and weak or no sound. Ensurethat the microphone and antenna are also well connected.

If this does not solve the problem, reset your transceiver asfollows.

1) Switch off the transceiver.2) Pressing M1 and M2 buttons at the

same time, switch on the transceiver.

This will reset the transceiver, so all the memories are erasedand the parameters return to the initial factory setting.This should fix most problems. In case of further difficulty,please consult your dealer or visit our website.

CE versions of the TCB-881 which display theCE symbol on the product label, comply with the

essential requirements of the European Radio and Telecommu-nication Terminal Directive 1999/5/CE.

This warning symbol indicates that this equipment operates in non-harmonised frequency bands and/or maybe subject to licensing conditions in the country of use.Be sure to check that you have the correct version of this radio or the correct programming of this radio, to comply with your national licensing requirements.

15TCB-881

This unit can be used without license and charges in; Austria,Belgium, Bulgaria,Cyprus, Czech, Denmark, Estonia, Finland, France,Germanay, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,Portugal,Pomania, Slovakia, Slovenia, Spain, Sweden, Switzerland, and U.K.

12. Safety Requirement

The power cable is for 12V/24V DC only. Be sure the transceiveris off before connecting the leads of the power cable to thepower supply. It is important to observe the polarity even if theunit is protected against the accidental inversion :

The unit must be wired for the negative ground only.To avoid damage, do not operate your CB radio withoutconnecting a proper antenna.

The same colors are present on the battery and in the fuse boxof the car.

* Red : Positive pole (+)* Black : Negative pole (-)

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13. Specification

ChannelFrequency RangeOperating modeFrequency ControlFrequency ToleranceOperating Temperature RangeMicrophoneInput VoltageSizeWeightAntenna ConnectorPower OutputModulation

Frequency ResponseOutput ImpedanceHarmonic SuppressionCurrent DrainReceiving SystemIF FrequenciesSensitivity

Audio Output PowerAudio DistortionImage RejectionAdjacent Channel RejectionConducted SpuriousFrequency ResponseBuilt-in SpeakerSquelch

* Specification is subject to change without prior notice.

TRANSMITTER

RECEIVER

GENERAL

40 (See the frequency band chart)26.96 MHz ~ 27.99125 MHzF3E (FM), A3E (AM)PLL Synthersizer0.002%-10 to + 55 CPlug-in Type12V/24V DC ± 10%156 (W) x 176 (L) x 51(H)990 gSO-239 typeDuty cycle 10% 4 Watts @13.8V DCAM:from 85% to 95%FM:1.8KHz ± 0.2KHz300Hz to 3000Hz50ohms, UnbalancedLess than -36dBmAM Full Mod. 1.6A Max.Dual conversion superheterodyneDouble Conversion 1st 10.695MHz/2nd 455KHz0.7 V for 10dB(S+N)/N in AM Mode0.7 V for 20dB SINAD in FM Mode2.0W @ 8 OhmLess than 8% @ 1KHz60 dB60 dBLess than -57 dBm300 to 2500Hz8 Ohms, roundAdjustable; Threshold less than 1 microvolt

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14. Restrictions on the use

COUNTRYBELGIUM

SWITSERLAND

DENMARK,NORWAY

LUXEMBOURG,CZECH

FINLAND,PORTUGAL

FRANCE,NETHERLANDS

GERMANY

GREECE

IRELAND

ITALY

SPAIN

SWEDEN

UK

POLAND

Use restrictions and other comments40 Ch - 4W FM - Individual licence is required

40 Ch - 4W AM - Individual licence is required

40 Ch - 4W FM - Free use

40 Ch - 4W AM - Free use

80 Ch - 4W FM - Individual licence is required

40 Ch - 4W AM - Individual licence is required

40 Ch - 4W AM - Use ch 4-15 only

40 Ch - 4W FM - Free use

12 Ch - 4W AM - Individual licence is required

40 Ch - 4W FM - Free use

40 Ch - 5W AM - Free use

40 Ch - 4W FM - Free use

40 Ch - 4W AM - Free use

40 Ch - 4W FM - General authorisation is required

40 Ch - 4W AM - General authorisation is required

34 Ch - 4W FM

34 Ch - 4W AM(ERP)

40 Ch - 4W FM - Individual licence is required

40 Ch - 4W AM - Individual licence is required

40 Ch - 4W FM - Free use

40 Ch - 4W AM - Individual licence is required

40 Ch - 4W FM - Individual licence is required

40 Ch - 4W FM / AM - Free use

*AM mode allowed on ch1-23 only

Settings

EC

ECEU

fx Allowed: from 26.960 to 27.410 MHz "BAPT 222 ZV 104"

T/R 20-02

S.I. No 436 of 1998. WIRELESS TELEGRAPHY ACT, 1926 (SECTIONS)

(EXEMPTION OF CITIZENS' BAND (CB) RADIOS) ORDER, 1998

PNF issued on DM 08.07.02 NOTES 49 A-B-C-D-E-G

Art. 57 - Law 11/1998 dated 24th April

UK-RA-MPT 1382/MPT1320; UK-R&TTE - S.IL. 2000:730

EU F

EC

EU

D

E EU F I

D2

EC

E EU F IEC

E EU F

I2

IEC

E EU FEC

EU FEC

ECUK

ECPL EU

F

EC

40 Ch - 4W FM - Free use

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15. Frequency Table

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10111213141516171819202122232425262728293031323334353637383940

26.96526.97526.98527.00527.01527.02527.03527.05527.06527.07527.08527.10527.11527.12527.13527.15527.16527.17527.18527.20527.21527.22527.25527.23527.24527.26527.27527.28527.29527.30527.31527.32527.33527.34527.35527.36527.37527.38527.39527.405

26.96526.97526.98527.00527.01527.02527.03527.05527.06527.07527.08527.10527.11527.12527.13527.15527.16527.17527.18527.20527.21527.22527.25527.23527.24527.26527.27527.28527.29527.30527.31527.32527.33527.34527.35527.36527.37527.38527.39527.405

26.96526.97526.98527.00527.01527.02527.03527.05527.06527.07527.08527.10527.11527.12527.13527.15527.16527.17527.18527.20527.21527.22527.25527.23527.24527.26527.27527.28527.29527.30527.31527.32527.33527.34527.35527.36527.37527.38527.39527.405

26.96526.97526.98527.00527.01527.02527.03527.05527.06527.07527.08527.10527.11527.12527.13527.15527.16527.17527.18527.20527.21527.22527.25527.24527.26526.87526.88526.89526.90526.91526.92526.93526.94526.955

EU/E/F/UK(CEPT)

UK(ENG.)

123456789

10111213141516171819202122232425262728293031323334353637383940

26.96526.97526.98527.00527.01527.02527.03527.05527.06527.07527.08527.10527.11527.12527.13527.15527.16527.17527.18527.20527.21527.22527.25527.23527.24527.26527.27527.28527.29527.30527.31527.32527.33527.34527.35527.36527.37527.38527.39527.405

D

41424344454647484950515253545556575859606162636465666768697071727374757677787980

EC

27.6012527.6112527.6212527.6312527.6412527.6512527.6612527.6712527.6812527.6912527.7012527.7112527.7212527.7312527.7412527.7512527.7612527.7712527.7812527.7912527.8012527.8112527.8212527.8312527.8412527.8512527.8612527.8712527.8812527.8912527.9012527.9112527.9212527.9312527.9412527.9512527.9612527.9712527.9812527.99125

I

26.96026.97026.98027.00027.01027.02027.03027.05027.06027.07027.08027.10027.11027.12027.13027.15027.16027.17027.18027.20027.21027.22027.25027.23027.24027.26027.27027.28027.29527.30027.31027.32027.33527.34027.35027.36027.37027.38027.39027.400

PLI2

26.96526.97526.98527.00527.01527.02527.03527.05527.06527.07527.08527.10527.11527.12527.13527.15527.16527.17527.18527.20527.21527.22527.25527.23527.24527.26527.27527.28527.29527.30527.31527.32527.33527.34527.35527.36527.37527.38527.39527.405

D2

AM/FM FM

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26.56526.57526.58526.59526.60526.61526.62526.63526.64526.65526.66526.67526.68526.69526.70526.71526.72526.73526.74526.75526.76526.77526.78526.79526.80526.81526.82526.83526.84526.85526.86526.87526.88526.89526.90526.91526.92526.93526.94526.955

We, TTI Tech Co.,Ltd (TTI house, 1163-4, Gaepo-dong, Gangnam-gu, Seoul, Korea) declare on our sole responsibility that this equipment complies with the essential requirements of the Radio and Telecommunications Terminal Equipment Directive, 1999/5/EC, and that any applicable Essential Test Suite measurements have been performed.

DECLARATION OF CONFORMITY

TCB-881

This compliance is based on conformity with the following harmonized standards, specifications or documents:

Kind of equipment:

Type-designation:

Version (where applicable):

MOBILE CB TRANSCEIVER

TCB-881

Seoul, Apr. 22, 2008

Place and date of issue

Signature

EN 300 135-2

EN 300 433-2

EN 301 489-1

EN 301 489-13

EN 60950-1

V1.1.1

V1.1.2

V1.6.1(2005)

V1.2.1(2002)

2001

2004

COMMAX PL46 Koniecznego Str.32-040 Swiatniki GornePolandT. +48 12 256 50 25F. +48 12 270 56 96 Authorized Representative

TCB-881 satisfies all the technial

regulations applicable to the product

within the scope of Council Directive

2006/95/EC, 2004/108/EC and 99/5/EC:

N. Y. KimDirector