TK-840 TK-940 TK-941 - The Repeater Builder`s Technical
Contents
1. W Diagram References INSTALLATION AND CONNECTION WARNING INTERFERENCE WITH VEHICULAR ELECTRONICS Electronic fuel injection systems electronic anti skid braking systems and electronic cruise control systems are typical of the types of electronic devices that may malfunction due to a lack of protection from radio frequency energy that is present when transmitting If the vehicle contains such equipment consult the dealer for the make of vehicle and enlist his aid in determining if such electronic circuits will perform normally when the transceiver is transmitting Note The following instructions are for use by your KENWOOD dealer an authorized KENWOOD service facility or the factory W Installation Equipment CAUTION Take care when drilling mounting holes to avoid damaging vehicle wiring or parts Always check to see how far the mounting screws will extend below the mounting surface before installing The following tools are required for installing this transceiver 6mm 1 4 or larger electric drill Drills and circle cutters sizes listed below mus Pme 94 2 mm 5 32 95 x 16 self tapping screws 93 2 mm 1 8 94 x 16 self tapping screws W Planning the Installation The accompanying illustration should help you in planning your installation Before starting determine the best location for the transceiver The transceiver should be convenient for the user protected from2. Press the PTT switch If the busy tone or intercept tone does not sound communication is possible start speaking into the microphone For best results hold the microphone 1 to 1 5 inches from your mouth Release the PTT switch when your message is complete and listen for a response Press the PTT switch to talk release it to listen When your conversation is finished return the microphone to its hanger W Placing a Telephone Call Note Telephone calls can be made only if that service is available and you have an optional keypad equipped microphone Consult your dealer for details 10 1 6 Select the desired system and group that you want to call by using the SYSTEM switches and GROUP switches Hold down the PTT switch for a moment 1 second to ensure a connection Release the PTT switch and confirm that you hear a dial tone from the repeater Dial by using the microphone keypad After dialing wait for a response from the other party When the other party responds press the PTT switch and start Speaking For best results hold the microphone 1 to 1 5 inches from your mouth Release the PTT switch to listen to the other party Only one person can speak at a time To end the call press the key Receiving a Telephone Call 1 Select the system and group by using the SYSTEM switches and GROUP switches If the Scan function has been programmed switch this function ON or OFF as required When you receive
3. COOMN 2D TK 840 TK 940 TK 941 UHF FM TRANSCEIVER 800 MHz FM TRANSCEIVER 900 MHz FM TRANSCEIVER INSTRUCTION MANUAL EMETTEUR RECEPTEUR FM UHF EMETTEUR RECEPTEUR FM 800 MHz EMETTEUR RECEPTEUR FM 900 MHz MODE D EMPLOI TRANSCEPTOR FM DE UHF TRANSCEPTOR FM DE 800 MHz TRANSCEPTOR FM DE 900 MHz MANUAL DE INSTRUCCIONES KENWOOD CORPORATION B62 0459 10 K 12 11 10 09 08 07 06 05 04 03 Models Covered By This Manual TK 840 UHF FM Transceiver 25 W TK 940 800 MHz FM Transceiver 15 W TK 941 900 MHz FM Transceiver 15 W This manual identifies and describes differences between the above versions Notice To The User IMPORTANT GOVERNMENT LAW PROHIBITS THE OPERATION OF UNLICENSED RADIO TRANSMITTERS WITHIN THE TERRITORIES UNDER GOVERNMENT CONTROL ILLEGAL OPERATION IS PUNISHABLE BY FINE OR IMPRISONMENT OR BOTH REFER SERVICE TO A QUALIFIED LICENSED OR CERTIFIED TECHNICIAN ONLY One or more of the following statements may be applicable FCC WARNING This equipment generates or uses radio frequency energy Changes or modifications to this equipment may cause harmful interference unless the modifications are expressly approved in the instruction manual The user could lose the authority to operate this equipment if an unauthorized change or modification is made INFORMATION TO THE DIGITAL DEVICE USER REQUIRED BY THE FCC This equipment has been tested and found to comply with the limits for a
4. Before attaching the transceiver to the bracket connect the antenna connector and power plug to the transceiver WARNING For passenger safety mount the transceiver securely so that it will not break loose in the event of a collision This is especially important in station wagons vans and similar type installations where a loose transceiver could be extremely dangerous to the vehicle occupants W Microphone Mount the microphone hanger so that the microphone is within easy reach ofthe user Neither the microphone nor microphone cable should interfere with the safe operation of the vehicle After mounting the microphone hanger connect the microphone plug to the microphone connector on the front of the transceiver then place the microphone on the hanger CONTROLS AND FUNCTIONS W Front Panel Microphone connector i D POWER switch Press to switch the power ON or OFF SYSTEM Up Down switches Pressing the right SYSTEM switch increases the selected system number by one Pressing the left SYSTEM switch decreases the system number by one Holding either switch down causes the function to repeat GROUP Up Down switches Operate similar to the SYSTEM switches but selects the groups available within a system Changing the system number causes the Group Display to indicate the revert group number the group that w
5. 5 inches from your mouth Release the PTT switch when your message is complete and listen for a response Press the PTT switch to talk release it to listen 4 When your conversation is finished return the microphone to its hanger AUDIBLE USER FEEDBACK TONES The transceiver outputs various tones to notify the user of the transceiver s operating status Busy Tone The busy tone is similar to a telephone busy tone The tone is output when all repeaters in the system are being used The tone stops when transmission becomes possible or the PTT switch is released Wi Intercept Tone The intercept tone is similar to a high low siren The tone sounds when the transceiver is out of the system service area and a repeater cannot be reached The intercept tone stops when the PTT switch is released m Volume Level Tone The volume level tone is the same as the busy tone The tone sounds each time a VOLUME Up Down switch is pressed while the transceiver is in receive mode The volume of the tone increases and decreases as the volume is adjusted Wi Proceed Tone This tone is a short beep It is available when the Clear to Talk function has been set for the transceiver Clear to Talk simply means the repeater system is ready to begin handling your telephone call after you have connected successfully with a repeater 12 SYSTEM SCAN General If the Scan function is programmed for the transceiver systems can be scanned by usin
6. AUDIBLE USER FEEDBACK TONE Volume Level Tone Proceed Ton SYSTEM SCAN General Scanning y Scanning Conventional Systems Scan Lockout Scan Revert GROUP SCAN TIME OUT TIMER HORN ALERT R ERDU VNNMVNND 22 00000 COMO DAHA AW MNN THANK YOU We are grateful you chose KENWOOD for your land mobile applications We believe this easy to use transceiver will provide dependable communications to keep personnel operating at peak efficiency KENWOOD transceivers incorporate the latest in advanced technology As a result we feel strongly that you will be pleased with this product s quality and features SAFETY It is important that the operator is aware of and understands hazards common to the operation of any transceiver WARNING EXPLOSIVE ATMOSPHERES GASES DUST FUMES etc Turn off and do not operate your transceiver while taking on fuel or while parked in gasoline service stations Do not carry spare fuel containers in the trunk of your vehicle if your transceiver is mounted in the trunk area INJURY FROM RADIO FREQUENCY TRANSMISSIONS Do not operate your transceiver when anyone is touching the antenna or when anyone is standing within two to three feet of your antenna to avoid the possibility of radio frequency burns or related physical injury DYNAMITE BLASTING CAPS Dynamite blasting caps may explode by the operation of transceivers
7. Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can generate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that the interference will not occur ina particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment to an outlet on a circuit different from that to which the receiver is connected Consult the dealer for technical assistance CONTENTS SAFETY UNPACKING AND CHECKING EQUIPMENT Supplied Items Diagram Reference INSTALLATION AND CONNECTION Installation Equipment Planning the Installation Power Cable Installing the Transceiver Microphone CONTROLS AND FUNCTIONS Front Panel Rear Panel Microphone TRUNKED OPERATION Receiving a Dispatch Call Placing a Dispatch Call Placing a Telephone Call Receiving a Telephone Call CONVENTIONAL OPERATION Receiving Transmitting
8. an incoming telephone call you will hear a ringing tone from the speaker Hold down the PTT switch to speak and release it to listen to the other party To end the call press the key CONVENTIONAL OPERATION W Receiving 1 Switch ON the transceiver 2 Press the VOLUME Up Down switches to set the volume level Use the volume level tones as guides 3 Select the system and group by using the SYSTEM switches and GROUP switches If the Scan function has been programmed switch this function ON or OFF as required 4 When you hear the other party s voice adjust the volume as necessary B Transmitting Note Before transmitting you must monitor the channel to make sure that it is not already in use If the selected group is not equipped with QT or DOT monitoring is done by simply listening for anyone talking before you begin transmitting It is not necessary to take the microphone off hook to monitor the channel If the selected group is equipped with QT or DOT as advised by your dealer take the microphone off hook to disable the QT or DQT Then if the channel is busy you will hear the conversation 1 Select the system and group that you want to call by using the SYSTEM switches and GROUP switches 2 Before starting to transmit monitor the selected group to check if it is free see Note above If the group is busy wait until it is free 3 Press the PTT switch and start speaking For best results hold the microphone 1 to 1
9. as displayed when the system was last selected VOLUME Up Down switches Pressing the upper VOLUME switch increases the volume level by one step Pressing the lower VOLUME switch decreases the volume level by one step Holding either switch down causes the function to repeat AUX Auxiliary switch Pressing this switch toggles the programmable auxiliary function such as Horn Alert Manual Relay etc Contact your dealer for further details SCAN switch Pressing this switch toggles System Scan ON or OFF Delete indicator Appears when systems are locked out of the System Scan list Blinks while scanning if any systems are locked out TX indicator Appears while the transceiver is in the transmit state 8 BUSY indicator Appears when attempting to access a trunked system that is busy with no available repeaters CALL indicator This indicator shows if a call was received while you were away from the vehicle It is programmed to appear when specific group IDs are received trunked systems or when a call is received on a specific group that opens the audio conventional systems The microphone hook switch PTT System or Group keys will reset the CALL indicator Call indicator reset by other keys is decided by dealer programming Scan indicator Appears while in the System Scan mode 2 TA indicator Appears when the Talk Around system group is selected 3 OPT indicator Displays the status of Optional Signa
10. em and group The second type of scan revert is called Last Use Revert The system and group to which you last responded is assigned as the new revert system and group 13 GROUP SCAN The Group Scan function is available only for trunked systems This function is useful if more than one group is programmed in systems The Group Scan function is set by the dealer on request It scans not only groups that are allowed to be scanned but also the revert groups When a call is received the group indicator shows the group number and that group becomes the revert group Simply press the PTT switch to respond to the call As with System Scan lifting the microphone from its hanger off hook stops scanning unless your dealer has programmed your transceiver to ignore an off hook condition TIME OUT TIMER The time out timer stops continuous transmissions automatically after a specified time elapses The dealer sets the time in the range of 15 seconds to 10 minutes If you hold down the PTT switch for longer than the programmed time an alert tone sounds when the timer expires The tone Stops after the PTT switch is released HORN ALERT If Horn Alert has been installed by your dealer this function sounds the vehicle horn or some other type of external alert when certain calls are received It is programmed like the CALL indicator to sound when specific group IDs or calls are received If the AUX switch is programmed to control Horn Alert then th
11. g the SCAN switch When the SCAN switch is pressed the S indicator and SCAN appear on the display and scanning starts Systems that are not locked out of the scan sequence are scanned When a call is received scanning stops and the system and group digits appear You then respond to the call by pressing the PTT switch Lifting the microphone from its hanger off hook stops scanning unless your dealer has programmed your transceiver to ignore an off hook condition The transceiver continues scanning after an adjustable time delay when the PTT switch is released and no signal is being received Scanning Trunked Systems When scanning trunked systems revert groups see Scan Revert below in each system as well as groups not locked out of the scan sequence are scanned Refer to GROUP SCAN page 14 W Scanning Conventional Systems When scanning conventional systems only the revert groups channels in each system are scanned Wi Scan Lockout If the AUX Auxiliary switch is programmed for the scan lockout function each system can be locked out of the scan sequence manually by the user Scan Revert Scan revert refers to the revert systems and groups being scanned You can select revert systems and groups by using the SYSTEM switches and GROUP switches There are 2 types of scan revert that are programmable by your dealer One is called Last Call Revert The last system group received is assigned as the new revert syst
12. if such operation occurs within 500 feet of the blasting caps Turn off and do not operate your transceiver when in an area where blasting is in progress or where TURN OFF TWO WAY RADIO signs have been posted If you are transporting blasting caps in your vehicle make certain they are carried in a closed metal box having a padded interior Do not transmit during the time that caps are being placed into or removed from this container UNPACKING AND CHECKING EQUIPMENT Note The following instructions are for use by your KENWOOD dealer an authorized KENWOOD service facility or the factory Carefully unpack the transceiver We recommend that you identify the items listed in the table before discarding the packing material If any damage has occurred during shipment file a claim with the carrier immediately W Supplied Items maom Part Number Transceiver aa 1 Microphone T91 0374 XX 1 Microphone cable E30 2089 XX 1 Microphone hanger J19 1376 XX 1 Power cable assembly E30 2076 XX 1 Spare fuse 10 A F51 0016 XX 1 Mic hanger ground cable E30 2036 XX 1 Mounting bracket J29 0441 XX 1 Speaker jack cap B09 0235 XX 1 Mounting hardware 9 Hex bolt N69 4010 XX T ao Self tapping screw large N46 5016 XX 4 d Self tapping screw small N46 4016 XX 3 Spring washer N16 0050 XX 4 B Flat washer N15 1050 XX 4 Warranty card U S A only 4 Instruction manual B62 0459 XX
13. is function can be activated or deactivated with this switch The Auxiliary indicator appears when Horn Alert is activated 14 Meo ases as KENWOOD WARRANTY ON LAND MOBILE RADIOS AND ACCESSORIES Kenwood Communications Corporation KENWOOD warrants its Land Mobile Radios and ac cessories as follows HOW LONG IS THE WARRANTY This Warranty will remain in effect for two 2 years for radios and one 1 year for accessories including rechargeable batteries measured from the date of purchase by the first end user WHO IS PROTECTED This Warranty is enforceable only by the first end user WHAT IS COVERED Except as specified below this Warranty covers all defects in materials and workmanship in KENWOOD Land Mobile Radios and accessories The following are not covered by the Warranty 1 Damage deterioration or failure resulting from A Accident misuse abuse neglect product modification or failure to follow instructions con tained in your Owner s Manual B Repair or attempted repair by anyone not authorized by KENWOOD C Installation of parts or accessories that do not conform to the quality or specifications of the original parts or accessories D Installation of the product in or removal of the product from the vehicle or other site of its use Damage or loss occurring during shipment claims must be presented to the carrier Any unit which is not new when sold to the first end user or upon which the serial
14. ling d AUX Auxiliary indicator Appears when the Manual Relay or Horn Alert function is activated ON by pressing the AUX switch 9 Handset indicator Appears when a group is selected that is programmed with telephone IDs 8 Alphanumeric display After the dealer s qualified service technician programs the transceiver the Alphanumeric Display shows either system numbers and group numbers for your specific network or the names of systems and or groups 7 Rear Panel External speaker Input power jack connector Antenna TK 940 941 Accepts male N connector connector TK 840 Accepts PL 259 connector B Microphone PTT Push To Talk switch Press PTT to activate the transmit portion of the transceiver Speak into the microphone while holding PTT down See Placing a Dispatch Call page 9 for details TRUNKED OPERATION W Receiving a Dispatch Call 1 2 3 Switch ON the transceiver Press the VOLUME Up Down switches to set the volume level Use the volume level tones as guides Select the system and group by using the SYSTEM switches and GROUP switches If the Scan function has been programmed switch this function ON or OFF as required When you hear the other party s voice adjust the volume as necessary W Placing a Dispatch Call 1 Select the system and group that you want to call by using the SYSTEM switches and GROUP switches
15. lops during or after the Limited Warranty Period or if you have any questions regarding the operation of the product you should contact your KENWOOD Authorized Dealer or Authorized Service Center If the problem or your question is not handled to your satisfaction please contact our Customer Relations Department at the address listed below For customers outside U S A or Canada who purchase this product please contact your local outhorized dealer KENWOOD SERVICE CORPORATION P O Box 22745 2201 East Dominguez Street Long Beach CA 90801 5745 Phone 310 761 8275
16. number has been defaced modified or removed WHAT WE WILL PAY FOR AND WHAT YOU MUST PAY FOR KENWOOD will pay all labor and material expenses for items covered by this Warranty If it is necessary to ship the product for Warranty service you are responsible for the initial shipping charges but we will pay the return shipping charges if the product is repaired or replaced under Warranty You are responsible for any charges incurred in removing the product from the vehicle or other site of use and for reinstallation of the repaired or replaced product HOW TO OBTAIN WARRANTY SERVICE Your KENWOOD Land Mobile Radio or accessory may be serviced by any authorized KENWOOD Land Mobile dealer or service center Whenever the product is presented for warranty service you must supply a sales receipt or other evidence of the date of purchase EXCLUSION OF IMPLIED WARRANTIES AND DAMAGES Unless considered unlawful or unenforceable under applicable law A ALL IMPLIED WARRANTIES WITH RESPECT TO KENWOOD LAND MOBILE RADIOS AND ACCESSORIES INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE HEREBY ARE EXCLUDED B KENWOOD S LIABILITY UNDER THIS WARRANTY SHALL BE LIMITED TO THE REPAIR OR REPLACEMENT AT KENWOOD S OPTION OF ANY DEFECTIVE PRODUCT AND SHALL NOT INCLUDE DAMAGES OF ANY KIND WHETHER INCIDENTAL CONSEQUENTIAL OR OTHERWISE This Warranty is enforceable only in the United States of America If a problem deve
17. water damage easy to service and out of the way of auto mechanics and passengers TK 940 941 N connector male TK 840 PL 259 connector W Power Cable The power cable consists of a fused red lead a fused black lead and a 2 pin power plug To install the power cable check for an existing hole conveniently located in the firewall through which the cable can be passed If no hole exists drill the firewall and install a rubber grommet Starting with the plug end of the cable at the transceiver run the two power leads into the engine compartment from the passenger compartment Connect the red lead to the positive battery terminal or Switched power source and the black lead to the negative battery terminal Always locate the fuse as close to the battery as possible Coil up the surplus cable and secure it out of the way with the retaining strap provided Ensure enough slack is available in the cables so that the transceiver can be removed for servicing with the power applied CAUTION The transceiver operates in 12 volt negative ground systems only Always check the battery polarity and voltage of the vehicle before installing the transceiver W installing the Transceiver Mount the transceiver so that the controls are within easy reach of the user Use the mounting bracket as a template to locate the holes then drill the holes and mount the transceiver Leave sufficient room at the rear of the transceiver for cable connections
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