Cobra 29 LTD CHR
Contents
1. Gate open Delta Tune Delta Tune functions as a fine tune control O 29LTD CHR i i i 1 o D enabling you to capture a more readable signal os eke E imi j i m N O _as well as eliminate adjacent channel interference Tay po VOL DYNAMIKE RF GAIN DELTA TUNE K SIGNALS o D o D Cobra 29LTD CHROME Un ar z gt o Lift j gt m fO 0 0 6 A CH RX TX 1 Li ous AA i Ae F fo Cy wz Die REGAN DELTATUNE T BACK SWR CAL Full counterclockwise rotation opens the z Ko Ko ox gate allowing all signals in v0 i SC obra 29LTD CHR Rotate Delta Tune knob to the center IE sme T 0 0 OWO postion for aptin tuning s Y 2 308 y 20 i M i VOL 2 gt SQL DYNAMIKE RF GAIN DELTA TUNE Gate set to Desired Setting Squelch setting Squelch Squelch Setting DSS Squelch i is the control gate for incoming signals Gat me a ae __ STRONG SIGNALS gt c o 29LTD CHR gt MUM SIGNALS gt A SWR 2 3 CALY O ig ass 4 a mio Jg To achieve the Desired Squelch Setting DSS MEDIUMSICNAIS z fe a D m he turn the Squelch control counterclockwise S S til you h ise Now turn th trol ETS all n f KSIGNALS gt U VoL gt SQL DYNAMIKE RFGAIN DELTA TUNE uns you neal nobe pa ee con ro i o D eee clockwise just until the noise stops This is the weax siGN A c gt z DSS setting D Ww 5E lt T gt J2. CB 26 965 to 27 405 MHz Class D station in the Citizens Radio Service This Blas ete wien Ga eai 224521 0 008 4 requency Control PLL phase lock loop Synthesizer lt unit features advanced Phase Lock Loop PLL Operating Temperature Range 30 C to 50 C bt s A p Microphone 0000005 Plug in dynamic H circuitry providing complete coverage of all 40 Input Voltage 13 8VDC nom positive or negative ground CB channels Current Drain Transmit AM full mod 1 5A maximum i Receive Squelched 0 3A f Channel Channel full audio output 1 2A nominal i SIZE nite EATE EEA ANASA 8 5 8 D x 7 9 32 W x 2 13 64 H CB Freq CB Freq Wei i Y ight 4 Ibs Channel In MHz Channel In MHz Antenna ene ene UHE SO S eR ou i POS PRE O ENEN EEEE L E AEAN EA OLED eee cece e eee eee eee e eed uminateg indicates relative power output i received signal strength and VSWR 1 26 965 21 27 215 T a i TRANSMITTER 2 26 975 22 27 225 Power Output 0 004 A watts 3 26 985 23 27 255 Modulation abs AM Amplitude Modulation i Frequency Response 300 to 3000 Hz i 4 27 005 24 27 235 Output Impedance 50 ohms unbalanced 5 27 015 25 27 245 piege pee atest E PEIA E EA GEnSitiVity ues oss ca Teach staat vase Less than 1 pV for 10 dB S N N i Selectivity 6 dB 7 KHz 60 dB 10KHz i i ne gt a mage Rejection 80 dB typical i Adjacent Channel Rejection
3. Select A one of forty channels and adjust volume The selected channel is indicated by i the LED readout directly above the channel The CB PA button should be in the selector knob CB position O 29LTD CHR SWA mn SALT S RF O DYNAMIKE RF GAIN DELTA TUNE Rotate the On Off Volume knob clockwise to a normal listening level a OS Operation Operation Calibrate For Calibrate for SWR Standing Wave Ratio SWR Standing SWR calibration is done to properly adjust the PUSH amp Wave Ratio length of the antenna and to monitor the quality _ of the coaxial cable and all RF connections HOLD This calibration is critical in order to achieve optimum performance p _ Note Calibration must be made in an open area never in a garage Vehicle doors must be closed No one should be standing near _ the antenna See your antenna directions for more complete _ information Hoo 29LTD CHROME 2 QWA 2 Note i RF GAIN DELTATUNE T BACK 3 SWR CAL eer Antenna Indicator LED will illuminate when TX if SWR is high MIN EO 29LTD CHROME l O QWA TTX QMO IA RF GAIN DELTA TUNE TEES CAL a7 MIN MAX VOL 2 SQL DYNAMIKE RF GAIN Si s5 While holding mic OFF MIN button adjust the a S SWR CAL knob so the ala meter needle swings SAL AS e oF to the CAL VW mark on Switch to the
4. U OFF MIN MIN MAX i NOISE gt d 6 l o Full clockwise rotation closes the gate allowing only very strong signals to enter Operation Operation To Transmit Caution Be sure the antenna is properly connected to the radio before transmitting Prolonged transmitting without an antenna or a poorly matched antenna could cause damage to the transmitter Be sure to read the F C C Rules and Regulations included with this unit before transmitting Setting Dynamike ree 29LTD CHROME KNB O QWE A en O To Transmit RF GAIN DELTA TUNE T BACK 3 SWR CAL Select desired channel Setting Dynamike This controls the microphone sensitivity _ outgoing audio level a 29LTD CHR Jy i Cre Cas VOL SQL _ RF GAIN DELTA TUNE DAG Initially set fully clockwise so that maximum voice volume is available Dynamike may have to be reduced in some conditions Transmit Setting TalkBack This control is used to adjust the desired amount of modulation talk back that is present at the speaker during transmit At fully counter clockwise position the talk back is off Transmit PUSH amp HOLD Push and hold mic button to transmit Transmitter is now activated When transmitting hold the microphone two inches from your mouth and apes ina clear poy voice E to receive E TalkBack spd obra 29LTD CHROME N
5. 60 dB typical 8 27 055 28 27 285 F Frequencies 0 4 Double Conversion 1st 10 695 MHz i 2 K 2nd 455 KHz 19 27 065 29 27 295 Automatic Gain Control AGC Less than 10 dB change in audio output for i inputs from 10 to 50 000 microvolts 10 27 075 30 27 305 RF Gain Control 008 Adjustable for optimum signal reception po scat OANE rence EIO E cat Noise Blanker RF type i 11 27 085 31 27 315 eTO e a ENET Adjustable threshold less than 1pV i Audio Output Power 4 watts Hy Frequency Response 300 to 3000 Hz 12 27 105 32 27 325 Distortion meee a a Less than 5 3 watts 1000 Hz 13 27 115 33 27 335 Built in Speaker 8 ohms 5w i External Speaker Not supplied 8 ohms disables internal speaker 14 27 125 34 27 345 ad 15 27 135 35 27 355 TLE ee i PA SYSTEM Pa ner Smeg ee bower Opiania int Aaso ienai peder 5 1 6 27 1 55 36 27 365 External Speaker for PA 8 ohms when PA CB switch is in PA f Not Supplied 6 The PA speaker also monitors the receiver f 17 27 165 37 27 375 separate jack provided 18 27 175 38 27 385 SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE 1 9 27 1 85 39 27 395 WARNING This product contains lead a chemical known to the State of California i X to cause cancer and birth defects or other reproductive harm 20 27 205 40 27 405 Wash hands after handling Limited One Year Warranty Cobra Electronic
6. broadcasts to a wide audience Thus advertising is not allowed on CB Channels because that is broadcasting FCC Warnings All transmitter adjustments other than those supplied by the manufacturer as front panel operating controls must be made by or under the supervision of the holder of an FCC issued general Radio Telephone Operator s License Replacement or substitution of transistors regular _ diodes or other parts of a unique nature with o parts other than those recommended by Cobra 2 may cause violation of the technical regulations of Part 95 of the FCC Rules or violation of Type Acceptance requirements of Part 2 of the Rules You should read and understand Part 95 included with this unit of the FCC Rules and Regulations before operating your Cobra radio even though the FCC no longer requires you to obtain an Operating Instruaions tor operator s license _ What s Included with Your 29 LTD CHR BB CB transceiver DC power cord Microphone FCC rules Transceiver bracket not shown Microphone bracket Operating Manual Controls and Indicators 4 Pin Microphone Connector Power On Off Volume Squelch Control Dynamike RF Gain Delta Tune E SWR CAL Talk Back Channel Selector E LED Channel Display E ANT Indicator RX Receive TX Transmit LED Indicator
7. Installation Antennas CB Antenna Note For optimum performance in passenger cars the ideal antenna location is on the center of the roof Second choice is on the center of the trunk Note Because many newer trucks feature fiberglass door skins the outside mirror must be grounded to the chassis via a ground strap when antenna is mounted on the mirror bracket Note 3 way Combination Antennas are also available which allow operation of all three bands AM FM amp CB using a single antenna However this type of antenna usually results in less than normal transmit and receive range when compared to a standard type Single Band CB antenna Call 773 889 3087 for further information CB Antenna _ Since the maximum allowable power output of _ the transmitter is limited by the FCC the antenna _is critical in affecting transmission distance Only _a properly matched antenna system will allow maximum power output Cobra loaded type antenna models are highly recommended for most installations Consult your Cobra dealer for _ further details or call 773 889 3087 and speak to _a Cobra representative PA SP EXT SP POWER A standard antenna connector is provided on the transceiver for easy connection Marine Installation The transceiver will not operate at maximum efficiency in a boat without a ground plate unless it has a steel hull Before attempting instal
8. fitness for a particular purpose _ are limited in duration to the length of this warranty COBRA shall not be liable for any incidental consequential or other damages including without _ limitation damages resulting from loss of use or cost of installation Some states do not allow limitations on how long an implied warranty lasts and or do not _ allow the exclusion or limitation of incidental or consequential damages so the above limitations may not apply to you hE Replacement DC Power Cord For in vehicle use 426 002 N 001 Optional Accessories FO Replacement Mounting Bracket For in vehicle use 251 353 9 001 Replacement Thumb Screws For in vehicle use 634 081 9 001 z Replacement Microphone Bracket For in vehicle use 741 080 9 001 21 Base Loaded Magnet Mount Antenna HG A1000 38 Base Loaded Magnet Mount Antenna HG A1500 4 Pin Premium Noise Cancelling Microphone HG M84 4 Pin Premium Noise Cancelling Microphone Wood Grain HG M84W Optional Accessories W 4 Pin Replacement Dynamic Power Microphone 4 Pin Noise Canceling Microphone Microphone HG M73 HG M75 HG M77 Dynamic External Speaker Noise Canceling External Noise Canceling With Talk Speaker Back External Speaker HG S100 HG 5300 HG 500 Optional Accessories You can find quality Cobra products and accessories at your local Cobra dealer or in the U S A you can order dir
9. goes to the chassis and the black wire is connected to the ignition switch Note Before installing the CB radio visually check the vehicle s battery connection to determine which terminal positive or negative is grounded positive is the larger of the two to the engine block or chassis A negatively grounded vehicle has its negative lead grounded to the chassis gt wv D Leg x lt Rey KA a chassis O Ina negative grounded vehicle connect the red lead of the DC power cord to an accessory 12 volt fuse Connect the black lead to the negative side of the vehicle This is usually the chassis Any convenient location with a good electrical contact remove paint may be used PA SP EXT SP POWER TOF A SAGO IL 60707 er ND D Plug power cable into back of unit marked Power Be sure to observe polarity markings Mount the microphone bracket on either side of the unit driver s left using two screws G supplied Bracket should be placed under the dash so microphone is readily accessible B ICES CN gt OO Oo on c obra 2 VOL gt SAL DYNAMIKE RF GAIN j NBI i SAF NB f swo ANL f caL OFF i i Attach the 4 pin microphone cable to receptacle on the front of unit and install unit on bracket securely
10. permitted and prohibited messages for channel 9 These are only guidelines and not all inclusive Permitted Example Message Yes Tornado sighted six miles north of town No Post number 10 No tornado sighted Yes Out of gas on I 95 at mile marker 211 No Out of gas in my driveway Yes Four car accident on l 94 at Exit 11 Send police and ambulance No Traffic moving smoothly on l 94 Yes Weather Bureau has issued thunderstorm warning Bring sailboat into port No Attention motorists Weather Bureau advises snow tomorrow will accumulate Yes Fire in building at 539 Main Evanston No Halloween patrol number 3 All quiet How Your CB Can Serve You How Your CB Can J e A E E ee A I A Code Meaning CB 10 Codes CB 10 Codes 10 29 Time is up for contact _ Citizen Bands have adopted the 70 CODES for 10 30 Does not conform to FCC rules _ standard questions and answers These codes 10 33 Emergency traffic _ provide quick and easy communication especially 10 34 Trouble at this station _in noisy areas Following are some of the more 10 35 Confidential information lt common codes and meanings 10 36 Correct time is Code Meaning 10 37 Wrecker needed at l 10 1 Receiving poorly 10 38 Ambulance needed 10 2 Receiving well 10 39 Message delivered 10 3 Stop transmitting 10 41 Turn to channel 10 4 OK message received 10 42 Traffic
11. B O FW WA N A Jg QWA N RF GAIN DELTA TUNE T e CAL CEN Operation RE Meter RF Meter This meter swings proportionately to the RF output outgoing signal while transmitting Col SWR 2 3 CALY S RF NBI ANL SK1 3 579 30dB CAL OFF VOL lan DYNAMIKE RF Gj The S RF SWR CAL switch must be in the S RF position Operation External Speaker The external speaker jack is used for remote receiver monitoring External Speaker Note _ The external speaker should have 8 ohm impedance and be _ rated to handle at least 4 0 lt watts When the external _ speaker is plugged in the _ internal speaker is automatically disconnected Note Connect an external speaker to the external speaker jack on the rear panel Cobra external speakers are _ rated at 10 watts Operation Operation er P a eee een ees Address PUSH amp HOLD Note Speaker should have 8 ohm impedance and be rated to handle at least 4 0 watts Note The speaker should be directed away from the microphone to prevent acoustic feedback Connect an external PA speaker to the PA jack Note _ onthe rear panel Push and hold microphone button and speak in a normal voice Your voice will now transmit Activity on the CB channel will mie aa on the PA speaker be heard through the PA speaker Adjust volume control to anormal l
12. Channel 9 Normal Switch Dimmer Switch CB PA Switch NB ANL ANL Off Switch S RF SWR CAL Switch Signal Strength Meter Microphone Back Side Public Address Speaker Jack External Speaker Jack ED Antenna Connector Power Jack VOL 3 SQL DYNAMIKE Cobra 29LTD CHROME SIRF SWR CAL DELTATUNE TBACK 3 SWR CAL O ANT 8 OS A an A A A PA SP EXT SP POWER Thank you for purchasing the Cobra 29 LTD CHR CB Radio Properly used this Cobra product will give you many years of reliable service Customer Support Should you encounter any problems with the product or not understand its many features please refer to this owner s manual If after referring to the manual you still need help call Cobra Customer Service at 773 889 3087 Our Thanks to You Cobra Customer Service Live operators are available _ M F 8 00 am 6 00 pm Central Time at 773 889 3087 Automated Technical Assistance _ available 24 hours a day seven _ days a week E mail questions to productinfo cobra com Cobra on the World Wide Web Frequently Asked Questions FAQ can be found on line at www cobra com Ordering From U S A Accessory Order Info Call 773 889 3087 for pricing or visit www cobra com For Credit Card Orders Call 773 889 3087 Press one from the main menu 8 00 a m to 6 00 p m Central Time Monday
13. How to Use Your Cobra 29 CTD CHR Features The CB Story FCC Regulations FCC Warnings Included Accessories Controls amp Indicators Our Thanks to You Customer Support Installation Location Mounting and Connection Antennas CB Antenna Marine Installation Ignition Noise Interference Operating Your 29 LTD CHR Turning On Your CB Setting Channel Selector Calibrate For SWR Standing Wave Ratio To Receive Selecting a Channel S M ter srssescresssessnessees NB ANL ANL Off Noise Blanker Automatic Noise Limiter Switch Bright Dim Switch RF Gain Control Setting Delta Tune Setting Squelch To Transmit Setting Dynamike Transmit TalkBack RF Meter External Speaker PA Public Address Home And Office Set Up Temporary Mobile Set Up How Your CB Can Serve You 28 A Few Rules You Should Know Channel 9 Emergency Messages CB 10 Codes 0 Frequency Ranges 29 LTD CHR Specifications Warranty Information Optional Accessories Accessory Order Info If You Think You Need Service Back Cover Features of This Product 40 CB Radio Channels _ Special Edition Chrome Cabinet amp Microphone Heavy Duty Dynamic Microphone _ Full 4 Watts AM RF Power Output e SWR Calibration Meter Talk Back Instant Channel 9 e 4 Pin Front Mount Microphone Connector Delta
14. If possible use the original packing material 5 Ship prepaid and insured by way of a traceable carrier such as United Parcel Service UPS or First Class Mail to avoid loss in transit to Cobra Factory Service Cobra Electronics Corporation 6500 West Cortland Street Chicago IL 60707 USA 6 If the unit is in warranty upon receipt of your unit it will either be repaired or exchanged depending on the model Please allow approximately 3 to 4 weeks before contacting us for status If the unit is out of warranty a letter will automatically be sent informing you of the repair charge or replacement charge If you have any questions please call 773 889 3087 for assistance Cobra Dynamike Nothing Comes Close to a Cobra and the snake design are registered trademarks of Cobra Electronics Corporation USA Cobra Electronics Corporation is a trademark of Cobra Electronics Corporation USA HC obra 29 LTD CHR Operating Instructions for your Cobra 29 LTD CHR VIN9 9 2008 Cobra Electronics Corporation Version A Printed in China Part No 480 456 P The Citizens Band lies between the shortwave broadcast and 10 meter Amateur radio bands and was established by law in 1949 The Class D two way communications service was opened in 1959 CB also includes a Class A citizens band and Class C remote control frequencies FCC Regulations FCC regulations permit only transmissions one party to another rather than
15. J CAL position the meter located on the right continued Operation Operation Note The reading will be slightly higher on Channels 1 and 40 compared to Channel 20 Note When switched to SWR position the meter needle should ideally O Repeat the same steps two through five be as far to the left as possible Anything over 3 is not acceptable The antenna indicator will light A slight antenna height adjustment higher or lower may be required Repeat relcalibration steps While still holding down the mic button set To Receive SE obra 2 NBI S RF yi a SWR ANL CAL VOL 2 SQL_ DYNAMIKE RF GAIN 5 OO VOL gt Y DYNAMIKE FIT To Receive Cobra 2911D NBI i O i ANL i RF GAIN DELTA the S RF SWR CAL switch to the SWR position to read the SWR reading Rotate the On Off Volume knob clockwise the green RX TX LED will be illu on Channel 1 and 40 This will check SWR for all channels minated Operation Operation NB ANL ANL OFF Noise Selecting A Channel Blanker Automatic Noise Limiter Switch Selecting A Channel obra 29LTD CHROME 0 0 Ge CEH T I DELTA TUNE T BACK SWA CAL SN VOL gt SQL DYNAMIKE Switch to ld NOR to select desired channel OE cence esse ene ge ee When switched to ANL the Automatic Noise S Meter Meter Limiter is activated This helps reduce noise created by the vehicle s el
16. Tune Switchable Automatic Noise Limiter amp Noise Blanker Adjustable Dynamike Boost 9Ft Mic Cord RFGain Installation Installation Location Location Plan location of transceiver and microphone lt bracket before starting the installation Select a location that is convenient for operation _ yet does not interfere with the driver or passenger The transceiver is usually mounted to the _ underside of the dash with the microphone bracket beside it Mounting and Mounting and Connection Connection Hold the radio with the mounting bracket in the exact desired location If there is no Note interference remove the bracket and use it as The transceiver is held in a template to mark the location for the the universal mounting bracket Mounting screws by two thumbscrews which Connect the antenna cable plug to the allow for adjustment at a receptacle marked ANT on the back of convenient angle the unit The bracket includes two self tapping screws and star i washers The mounting must be mechanically strong conveniently located Drill the holes and secure the bracket l continued Installation Note Connecting to an accessory fuse prevents the unit from being left on accidentally and also permits operating the unit without running the engine Note In positive ground vehicles the red wire
17. accident at 10 5 Relay message 10 43 Traffic tie up at 10 6 Busy stand by 10 44 Have a message for 10 7 Out of service leaving 10 45 All units within range please report 10 8 In service subject to call 10 50 Break channel 10 9 Repeat message 10 60 What is next message number lt 10 10 Transmission completed standing by 10 62 Unable to copy Use phone lt 10 11 Talking too rapidly 10 63 Net directed to 10 12 Visitors present 10 64 Netclear 10 13 Advise weather roads 10 65 Awaiting your next message assignment 10 16 Make pick up at 10 67 All units comply 10 17 Urgent business 10 70 Fire at 10 18 Anything for us 10 71 Proceed transmission in sequence 10 19 Return to base i fons 10 77 Negative contact 10 20 My location is 10 21 Call by phone 10 22 Report in person to 10 81 Reserve hotel room for 10 82 Reserve room for 10 23 Stand by 10 85 My address is 10 24 Completed last assignment 10 91 Talk closer to mic lt 10 25 Can you contact 10 93 Check my frequency on this channel 10 26 Disregard last info 10 94 Give mea long count _ 10 27 Moving to channel 10 99 Mission completed all units secure 10 28 Identify your station 10 200 Police needed at Frequency Ranges 29 LTD CHR Specifications The COBRA 29 LTD CHR transceiver represents one GENERAL H H CPE sicily ra AA saree CB 40 CH _ of the most advanced AM two way radios used as a Frequency Range lt
18. ectly from Cobra See ordering info on page 37 The CB Story Cobra Electronics Corporation 6500 West Cortland Street Chicago IL 60707 USA If You Think You Need Service For technical assistance please call our Automated Help Desk which can assist you by answering the most frequently asked questions about Cobra products 773 889 3087 24 hours a day 7 days a week A Consumer Service Representative can be reached at 773 889 3087 8 00 am 6 00 pm Monday through Friday Central Time Technical assistance is also available on line in the Frequently Asked Questions FAQ section at www cobra com or by e mail to productinfo cobra com If you think you need service call 773 889 3087 If your product should require factory service please call Cobra first before sending your unit in This will ensure the fastest turn around time on your repair You may be asked to send your unit to the Cobra factory It will be necessary to furnish the following in order to have the product serviced and returned 1 For Warranty Repair include some form of proof of purchase such as a mechanical reproduction or carbon or a sales receipt If you send the original receipt it cannot be returned 2 Send the entire product 3 Enclose a description of what is happening with the unit Include a typed or clearly print name and address of where the unit is to be returned 4 Pack unit securely to prevent damage in transit
19. ectronics Swings proportionately to strength of incoming signal when receiving When switched to U NB ANL position the RF Noise Blanker is also activated providing increased noise filtration 5S Co J AA VOL gt SQL EX The S RF SWR CAL switch must be in the S RF position to read the meter When switched to OFF position all noise filtration will be turned off NB ANL ANL OFF Noise Blanker Automatic Noise Limiter Switch Note The RF noise blanker is very _ effective in reducing repetitive noises such as ignition _ interference a Operation Operation Bright Dim _ Bright Dim Switch RF Gain Control RF Gain Control Switch The RF Gain is used to optimize reception in strong or weak signal areas bra 29LTD CHROME Jun BRT CH9 A E a A nun ey 4 DELTA TUNE TBACK 2 SWR CAL Y SS Switch to BRT or DIM to control brightness of the channel indicator and multi function Cobra 291d CHR S RF i O a e J X Note VOL gt SQL DYNAMIKE RF GAIN DELTA TUNE i The RF Gain is used to optimize es By reception in weak signal areas MI MIN MAX i meter for day or nighttime driving Rotate the RF Gain knob counterclockwise to reduce gain in strong signal areas In weak signal areas turn clockwise to increase gain Operation Operation Setting Setting Delta Tune
20. istening level NBT Q ANL Set CB PA switch to PA position Adjust PA speaker volume with the Dynamike control a B OS Base Station Operation From 120V AC House Current Warning Do not attempt to operate this transceiver by connecting it directly to 120v ac Note For further information call Cobra Customer Service 773 889 3087 Home And Office Set Up Base Station Operation _ From 120V AC House Current To operate your transceiver from home or office _ you will need a 13 8 volt DC Power Pack rated at a _ minimum of 2 amps and a properly installed base lt Station antenna power pack gt amp Go Simply connect the red and black leads of the transceiver to the corresponding terminals of the power pack PA SP EXT SP POWER Plug power cable into back of unit marked Power Be sure to observe polarity markings Connect properly installed and matched base station antenna Temporary Mobile Operation For temporary mobile operation you may want to purchase an optional automobile power adapter from your COBRA dealer This adapter and a magnetic mount antenna allow you to quickly install your transceiver for temporary use N Temporary Mobile Se
21. lation consult your dealer for information _regarding an adequate grounding system and _ prevention of electrolysis between fittings in the hull and water Ignition Noise Interference Use of a mobile receiver at low signal levels is normally limited by the presence of electrical noise The primary source of noise in automobiles is from the alternator and ignition system Typically when signal level is adequate the background noise does not present a serious problem Also when extremely low level signals are being received the transceiver may be operated with the vehicle s engine turned off The unit requires very little current and therefore will not significantly discharge the vehicle s battery Even though the Cobra 29 LTD CHR has an automatic noise limiter in some installations ignition interference may be high enough to make good communications impossible Many possibilities exist and variations between vehicles require different solutions Consult your COBRA dealer or a 2 way radio technician for help in locating the source of a severe noise Operation Operation Turning On Turning On Setting Channel Selector Setting Channel Make sure the power cord antenna and Selector _ microphone are connected to their proper connectors before starting ee 29LTD CHROME ay Jg s TX L ine Cobra 29LTD CHRO RFGAIN DELTATUNE T BACK gt SWR CAL SN Jy D A A Jy Ig DM A A 7 RF GAIN DELTA TUNE
22. s Corporation 6500 West Cortland Street Chicago Illinois 60707 USA www cobra com COBRA ELECTRONICS CORPORATION warrants that _ its COBRA CB Radios and the component parts thereof will be free of defects in workmanship and materials for period of one 1 year from the date of first consumer purchase This warranty may be enforced by the first consumer purchaser provided that the product is utilized within the U S A COBRA will without charge repair or replace at its option defective CB radios products or component parts upon delivery to the COBRA factory Service Department accompanied by proof of the date of first consumer purchase such as a duplicated copy of a sales receipt You must pay any initial shipping charges required to ship _ the product for warranty service but the return charges _ will be at Cobra s expense if the product is repaired or replaced under warranty This warranty gives you specific legal rights and you may also have other rights which vary from state to state Exclusions This limited warranty does not apply lt 1 to any product damaged by accident 2 in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs 3 if the serial number has been altered defaced or removed 4 if the owner of the product resides outside the U S A _ All implied warranties including warranties of merchantability and
23. t Up Temporary Mobile Set Up A Few Rules You Should Know Channel 9 Emergency Messages Note If no response on channel 9 try channels 19 or 14 How Your CB Can Serve You Warn of traffic problems Provide weather and road data Provide help in event of an emergency Provide direct contact with home or office Assist police by reporting erratic drivers Get local information to find destination Communicate with family and friends Suggest spots to eat and sleep Keep you alert while traveling A SRG Walk shuld Tes Seatac atts _A Conversations cannot last more than 5 minutes with another station A one minute break is required to let others use the channel B You cannot blast others off the air by use of illegally amplified transmitters or illegally high antennas _C You cannot use CB to promote illegal activities _ D Profanity is not allowed E You may not transmit music with a CB F Selling of merchandise and or services is prohibited 1 Set to channel 9 for emergencies Be sure antenna is properly connected 2 CB Distress Data _ When transmitting an emergency you should request a REACT BASE and provide the CB distress data called CLIP C allSign Identify yourself L ocation Be exact l njuries Number Type Trapped P roblem Give details and help needed _ Transmit CLIP repeatedly so any monitor can assist How Your CB Can Serve You The FCC gives these examples of
24. through Friday Make Check or Money Order Payable To Cobra Electronics Attn Accessories Dept 6500 West Cortland Street Chicago IL 60707 U S A To Order Online Please visit our website www cobra com owt Deion 426 002 N 001 Replacement DC Power Cord 251 353 9 001__ _ Replacement Mounting Bracket 634 081 9 001 Replacement Thumb Screws 741 080 9 001 f Replacement Microphone Bracket HG A1000 Base Loaded lagnetic Mount Antenna HG A1500 38 Base Loaded agnetic Mount Antenna HG M84 Pin Premium Noise Cancelling icrophone HG M84W Pin Premium Noise Cancelling icrophone Wood Grain Pin Replacement Dynamic icrophone Pin Noise Cancelling Microphone Power Microphone Dynamic External Speaker Noise Cancelling External Speaker Noise Cancelling with Talk Back External Speaker
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