Cobra 29 LTD Classic Manual
Cobra 29 LTD Classic, size: 4.9 MB
The Cobra 29 LTD ST transceiver represents one of the most advanced AM two-way radios ever designed for use as a Class D station in the Citizens Radio Service. This unit features advanced Phase Lock Loop (PLL) circuitry providing complete coverage of all 40 channels. The Cobra 29 LTD ST has a vastly superior receiver which includes noise blanker circuitry and an automatic noise limiter. The receiver also features increased protection against cross modulation and strong adjacent channel signals. [ Report abuse or wrong photo | Share your Cobra 29 LTD Classic photo ]
Cobra 29 LTD Classic CB Radio Video Review
User reviews and opinions
|dIem||12:07pm on Sunday, August 1st, 2010|
|This is one of the best radios i have had the pleasure of owning. I always have had a radio installed on my vehicles since I was first able to drive. I like the dimmer capabitity for night time driving but the reception is horrible!!|
|MikeShapiro||6:50pm on Tuesday, July 20th, 2010|
|Took just a few minutes to hook it up and get it running. Only need a quick fine-tuning and set the SWR. Perfect for my job as a profestional truck driver. Clear Signal, Easy To Use, Good Audio, Lightweight, Perfect For My Long Hauls, Rugged|
Comments posted on www.ps2netdrivers.net are solely the views and opinions of the people posting them and do not necessarily reflect the views or opinions of us.
How to Use Your Cobra 29 LTD Classic
Features...1 The CB Story....A1 FCC Regulations FCC Warnings Included Accessories Controls & Indicators...A2 Our Thanks to You....A3 Customer Support Installation Location...2 Mounting and Connection..2 Antennas CB Antenna....6 Marine Installation...6 Ignition Noise Interface...7 Operating Your 29 LTD Classic Turning On Your CB..8 Setting Channel Selector...9 Calibrate For SWR (Standing Wave Ratio)..10 To Receive...13 Selecting a Channel...14 S-Meter....14 NB-ANL/ANL/Off (Noise Blanker/Automatic..15 Noise Limiter Switch) Bright/Dim Switch...16 RF Gain Control...17 Setting Delta-Tune...18 Setting Squelch...18 To Transmit...20 Setting Dynamike...20 Transmit....21 RF Meter...22 External Speaker....23 PA (Public Address)..24 Home And Office Set-Up...26 Temporary Mobile Set-Up...27 How Your CB Can Serve You...28 A Few Rules You Should Know..28 Channel 9 Emergency Messages...28 CB 10 Codes...30 Frequency Ranges....LTD Classic Specifications..33 Warranty Information...34 Notes....35 Optional Accessories...38 Order Form...40 If You Think You Need Service..Back Cover
Features of This Product 40 CB Radio Channels Heavy-Duty Dynamic Microphone Full 4 Watts AM RF Power Output SWR Calibration Meter Instant Channel 9 4-Pin Microphone Connector Delta -Tune Switchable Automatic Noise Limiter & Noise Blanker Adjustable Dynamike Boost
RISK OF ELECTRIC SHOCK DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK) NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
Plan location of transceiver and microphone 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 Connection
Note The transceiver is held in the universal mounting bracket by two thumbscrews which allow for adjustment at a convenient angle. The bracket includes two selftapping screws and star washers. The mounting must be mechanically strong, conveniently located.
Hold the radio with the mounting bracket in the exact desired location. If there is no interference, remove the bracket and use it as a template to mark the location for the mounting screws.
Drill the holes and secure the bracket.
DATE OF MFG :JUNE 98
MADE IN CHINA
PA.SP. EXT.SP. + POWER
SERIAL NO.:806135776 PRECISION ENGINEERED PRODUCT OF COBRA ELECTRONICS CORP. CHICAGO, ILL.60707
Note Before installing the CB radio, visually check the vehicles 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.
Connect the antenna cable plug to the receptacle marked ANT on the back of the unit.
Note In positive ground vehicles the red wire goes to the chassis and the black wire is connected to the ignition switch.
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 goes to the chassis and the black wire is connected to the ignition switch.
In a 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.
NEERED PRODUCT OF. CHICAGO, ILL.60707
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 (drivers left) using two screws supplied. Bracket should be placed under the dash so microphone is readily accessible.
SWR RF RF SIG +30dB CAL
S/RF SWR CAL
NB/ ANL ANL OFF
Attach the 4-pin microphone cable to receptacle, on side of unit and install unit on bracket securely. 5
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 Note maximum power output. Cobra loaded type For optimum performance in antenna models are highly recommended for passenger cars the ideal anten- most installations. Consult your Cobra dealer for na location is on the center of further details, or call 773.889.3087 and speak to the roof. Second choice is on the a Cobra representative.
center of the trunk. Note Because many newer trucks feature fiberglass door skins, the outside mirror must be grounded to the chassis. Note 3-way Combination Antennas are also available which allow operation of all three bands (AM-FM & 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 773889-3087 for further information.
A standard antenna connector is provided on the transceiver for easy connection.
The transceiver will not operate at maximum efficiency in a boat without a ground plate, (unless it has a steel hull). Before attempting installation , 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 vehicles engine turned off. The unit requires very little current and therefore will not significantly discharge the vehicles battery. Even though the Cobra 29 LTD Classic 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.
Make sure the power cord, antenna and microphone are connected to their proper connectors before starting.
SWR RF SIG 1
The CB/PA button should be in the CB position.
SWR RF SIG +30dB CAL
D E LTAT U N E S
Rotate the On/Off Volume knob a normal listening level.
Setting Channel Selector
RX/TX NB/ ANL ANL OFF CB BRT CH9
D E LTAT U N E SWR CAL
Select one of forty channels and adjust volume. The selected channel is indicated by the LED readout directly above the channel selector knob
Calibrate For SWR (Standing Wave Ratio)
Calibrate for SWR (Standing Wave Ratio)
SWR calibration is done to properly adjust the length of the antenna and to monitor the quality of the coaxial cable and all RF connections. This calibration is critical in order to achieve optimum performance.
RX/TX S NB/ ANL ANL OFF CB BRT CH9
Antenna Indicator LED will illuminate when TX if SWR is high. M
Switch to the
PUSH & HOLD
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).
Push and hold mic button.
While holding mic SWR 2 button adjust the RF SWR CAL knob so the SIG meter needle swings to the CAL M mark on the meter (located on the right).
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 be as far to the left as possible. Anything over 3 is not acceptable. A slight antenna height adjustment (higher or lower) may be required. Repeat relcalibration steps.
While still holding down the mic button, set the S/RF SWR CAL switch to the SWR position, to read the SWR reading. Repeat the same steps two through five on Channel 1 and 40. This will check SWR for all channels.
Rotate the On/Off Volume knob clockwise the green RT/TX LED will be illuminated.
Selecting A Channel
RX/TX BRT CH9
NOR to select desired channel.
Swings proportionately to strength of incoming signal when receiving.
The S/FR-SWR-CAL switch must be in the S/RF position to read the meter.
NB-ANL/ANL/OFF (Noise Blanker/Automatic Noise Limiter) Switch
NB-ANL/ANL/ OFF (Noise Blanker/ Automatic Noise Limiter) Switch
When switched to ANL the Automatic Noise Limiter is activated. This helps reduce noise created by the vehicles electronics. When switched to NB/ANL position the RF Noise Blanker is also activated, providing increased noise filtration. When switched to OFF position all noise filtration will be turned off.
The RF noise blanker is very effective in reducing repetitive noises such as ignition interference.
Switch to BRT or DIM to control brightness of the channel indicator and multi-function meter for day or nighttime driving.
RF Gain Control
The RF Gain is used to optimize reception in strong or weak signal areas.
Note The RF Gain is used to optimize S reception in weak signal areas. Turn counterclockwise to reduce gain.
D E LTAT U N E
Rotate the RF Gain knob counterclockwise to reduce gain in strong signal areas. In weak signal areas turn clockwise to increase gain.
Delta-Tune functions as a fine tune control enabling you to capture a more readable signal, as well as eliminate adjacent channel interference.
Rotate Delta-Tune knob to the center position for optimum tuning.
Squelch is the control gate for incoming signals.
G AT E C L O S E D
Full clockwise rotation closes the gate allowing only very strong signals to enter.
D E LTAT U N E S W R C SIGNALS MEDIUMA L
Full counterclockwise rotation opens the gate allowing all signals in.
SWR AL GateC set to Desired Squelch Setting (DSS)
G AT E
To achieve the Desired Squelch Setting (DSS), counterclockwise turn the Squelch control until you hear noise. Now turn the control clockwise just until the noise stops. This is the DSS setting.
G AT E OPEN
SWR Be sure the antenna +30dB SIG 9 is properly PA OFF C connected to the radio beforeA L RFGAIN DYNAMIKE VOLUME SQUELCH transmitting. Prolonged transmitting without an antenna, or a poorly matched antenna, O F M MAX MIN MAX could Fcause damage to the I N transmitter.
NB/ ANL ANL
Be sure to read the F.C.C. Rules and Regulations included with this unit before transmitting.
This controls the microphone sensitivity (outgoing audio level).
Initially, set fully clockwise so that maximum voice volume is available. Dynamike may have to be reduced in some conditions.
Push and hold mic button to transmit. Transmitter is now activated. When transmitting, hold the microphone two inches from your mouth and speak in a clear, normal voice. Release to receive.
This meter swings proportionately to the RF output (outgoing signal) while transmitting.
The S/RF-SWR-CAL switch must be in the S/RF position. OFF MIN MAX MIN
The external speaker jack is used for remote receiver monitoring.
ADE IN CHINA
OF GO, ILL.60707
The external speaker should have 8-ohm impedance and be rated to handle at least 4.0 watts. When the external speaker is plugged in, the internal speaker is automatically disconnected. Note Cobra external speakers are rated at 10 watts.
Connect an external speaker to the external speaker jack on the rear panel.
PA (Public Address)
Note Speaker should haveOF DATE 8-ohm MFG :JUNE 98 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. Note When the volume control is rotated clockwise, activity on the CB channel will be heard through the PA speaker.
Connect an external PA speaker to the PA jack on the rear panel.
CB/PA switch to PA position.
Push and hold microphone button and speak in a normal voice. Your voice will now transmit on the PA speaker.
Adjust PA speaker volume with the Dynamike control.
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 station antenna.
Warning! Do not attempt to operate this transceiver by connecting it directly to 120 vac. Note For further information call Cobra Customer Service 1.773.889.3087.
Simply connect the red (+) and black (-) leads of the transceiver to the corresponding terminals of the power pack.
Temporary Mobile Set-Up
E OF :JUNE 98
:806135776 ENGINEERED PRODUCT OF ECTRONICS CORP. CHICAGO, ILL.60707
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 cigar lighter adapter from your COBRA dealer. This adapter and a magnetic mount antenna allow you to quickly install your transceiver for temporary use.
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 Few Rules You Should Know
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.
Channel 9 Emergency Messages
Note If no response on channel 9, try channels 19 or 14.
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 L I P all Sign ocation njuries roblem Identify yourself. Be exact. Number. Type. Trapped? Give details and help needed.
Transmit CLIP repeatedly so any monitor can assist. 28
The FCC gives these examples of permitted and prohibited messages for channel 9. These are only guidelines and not all-inclusive:
Yes No Yes No Yes
Tornado sighted six miles north of town. Post number 10. No tornado sighted. Out of gas on I-95 at mile marker 211. Out of gas in my driveway. Four car accident on I-94 at Exit 11. Send police and ambulance. Traffic moving smoothly on I-94. Weather Bureau has issued thunderstorm warning. Bring sailboat into port. Attention motorists. Weather Bureau advises snow tomorrow will accumulate 4 to 6 inches. Fire in building at 539 Main, Evanston. Halloween patrol number 3. All quiet.
Citizen Bands have adopted the 10-CODES for standard questions and answers. These codes provide quick and easy communication, especially in noisy areas. Following are some of the more common codes and meanings:
Code 10-1 10-2 10-3 10-4 10-5 10-6 10-7 10-8 10-9 10-10 10-11 10-12 10-13 10-16 10-17 10-18 10-19 10-20 10-21 10-22 10-23 10-24 10-25 10-26 10-27 10-28 Meaning Receiving poorly Receiving well Stop transmitting OK, message received Relay message Busy, stand by Out of service, leaving In service, subject to call Repeat message Transmission completed standing by Talking too rapidly Visitors present Advise weather/roads Make pick up at Urgent business Anything for us? Return to base My location is Call by phone Report in person to Stand by Completed last assignment Can you contact Disregard last info Moving to channel Identify your station
Code 10-29 10-30 10-33 10-34 10-35 10-36 10-37 10-38 10-39 10-41 10-42 10-43 10-44 10-45 10-50 10-60 10-62 10-63 10-64 10-65 10-67 10-70 10-71 10-77 10-81 10-82 10-85 10-91 10-93 10-94 10-99 10-200 Meaning Time is up for contact Does not conform to FCC rules Emergency traffic Trouble at this station Confidential information Correct time is Wrecker needed at Ambulance needed Message delivered Turn to channel Traffic accident at Traffic tie up at Have a message for All units within range please report Break channel What is next message number? Unable to copy. Use phone Net directed to Net clear Awaiting your next message/assignment All units comply Fire at Proceed, transmission in sequence Negative contact Reserve hotel room for Reserve room for My address is Talk closer to mic Check my frequency on this channel Give me a long count Mission completed, all units secure Police needed at
The COBRA 29 LTD Classic transceiver represents one of the most advanced AM two-way radios used as a Class D station in the Citizens Radio Service. This unit features advanced Phase Lock Loop (PLL) circuitry providing complete coverage of all 40 CB channels. Channel Channel CB Freq. CB Freq. Channel In MHz Channel In MHz 26.965 26.975 26.985 27.005 27.015 27.025 27.035 27.055 27.065 27.075 27.085 27.105 27.115 27.125 27.135 27.155 27.165 27.175 27.185 27.40 27.215 27.225 27.255 27.235 27.245 27.265 27.275 27.285 27.295 27.305 27.315 27.325 27.335 27.345 27.355 27.365 27.375 27.385 27.395 27.405
29 LTD Classic Specifications
GENERAL CHANNELS. CB - 40 CH FREQUENCY RANGE. CB - 26.965 TO 27.405 MHZ FREQUENCY TOLERANCE. 0.005 % FREQUENCY CONTROL. PLL (PHASE LOCK LOOP) SYNTHESIZER OPERATING TEMPERATURE RANGE. -30 C TO + 50 C MICROPHONE. PLUG-IN DYNAMIC INPUT VOLTAGE. 13.8VDC nom. (positive or negative ground) CURRENT DRAIN TRANSMIT: AM FULL MOD., 1.5A (MAXIMUM) RECEIVE: SQUELCHED, 0.3A; FULL AUDIO OUTPUT, 1.2A (NOMINAL) SIZE.8-5/8 D X 7-9/32W X 2-13/63 H WEIGHT.4 LBS. ANTENNA CONNECTOR.UHF; SO-239 METER.ILLUMINATED; INDICATES RELATIVE POWER OUTPUT AND RECEIVED SIGNAL STRENGTH TRANSMITTER POWER OUTPUT.4 WATTS MODULATION.AM (AMPLITUDE MODULATION) FREQUENCY RESPONSE.300 TO 3000 HZ OUTPUT IMPEDANCE.50 OHMS, UNBALANCED RECEIVER SENSITIVITY.LESS THAN 1 V FOR 10DB (S+N) /N SELECTIVITY.6 DB @ 7 KHZ, 60 DB @ 10KHZ IMAGE REJECTION.80 DB, TYPICAL ADJACENT-CHANNEL REJECTION.60 DB, TYPICAL IF FREQUENCIES.DOUBLE CONVERSION: 1ST: 10.695 MHZ 2ND: 455 KHZ AUTOMATIC GAIN CONTROL (AGC).LESS THAN 10 DB CHANGE IN AUDIO OUTPUT FOR INPUTS FROM 10 TO 50,000 MICROVOLTS RF GAIN CONTROL.ADJUSTABLE FOR OPTIMUM SIGNAL RECEPTION NOISE BLANKER.RF TYPE SQUELCH.ADJUSTABLE;THRESHOLD LESS THAN 1V AUDIO OUTPUT POWER.4 WATTS FREQUENCY RESPONSE.300 TO 3000 HZ DISTORTION.LESS THAN 5% @3 WATTS @ 1000 HZ BUILT-IN SPEAKER.8 OHMS, 5W EXTERNAL SPEAKER (NOT SUPPLIED).8 OHMS; DISABLES INTERNAL SPEAKER WHEN CONNECTED PA SYSTEM POWER OUTPUT.4 WATTS INTO EXTERNAL SPEAKER EXTERNAL SPEAKER FOR PA.8 OHMS, WHEN PA-CB SWITCH IS IN PA, (NOT SUPPLIED).THE PA SPEAKER ALSO MONITORS THE RECEIVER; SEPARATE JACK PROVIDED (SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)
Limited Two Year Warranty
Wa ar rra
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 two (2) years 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. Exclusions: This limited warranty does not apply; 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 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.
Cobra Electronics Corporation 6500 West Cortland Street Chicago, Illinois 60707
Replacement DC Power Cord For in vehicle use 426-002-N-001 $7.50
Replacement Mounting Bracket For in vehicle use 251-353-9-001 $4.50
Replacement Thumb Screws For in vehicle use 634-081-9-001 $0.60
Replacement Microphone Bracket For in vehicle use 741-080-9-001 $0.45
28 Full Range Center Load, Magnetic Mount Antenna For in vehicle use AT 35 $19.95
25 Glass Mount Antenna For in vehicle use AT 55 $27.95
39 Full Range Base Load, Magnetic Mount Antenna For in vehicle use AT 70 $24.95
44 Full Rnage, Center Load, Dual Band CB/WX Antenna Allows greater transmission range while in a moving vehicle. ATW-400 $27.95
Replacement Dynamic Microphone For in vehicle use CA 73 $12.95
NOISE CANCELLING AND TALK BACK VOLUME
NOISE CANCELLING AND TALK BACK VOLUME NOISE CANCELLING
Power Microphone CS-300 For in vehicle use CA 75
Noise Canceling/Power Microphone For in vehicle use CA 77 $24.95
Echo/Noise Canceling Microphone For in vehicle use CA 79 $59.95
CS-100 CS-300 CS-500
Dynamic External Speaker For in vehicle use CS 100 $14.95
Noise Canceling External Speaker For in vehicle use CS-100 CS 300 $19.95
Dynamic Noise Canceling With Talk Back External Speaker For in vehicle use CS-300 CS 500 $24.95
You Can Find These Fine Accessories At Your Local Cobra CB Dealer
If you wish, you can order directly from Cobra.
Order by phone Call 1.773.889.3087 (Press 1 from the main menu) 8 a.m.-8 p.m. M-F CST. Order by mail or fax Please fill out order form on next page, and mail/fax directly to Cobra.
Accessory Order Form
Item # 426-002-N-001 251-353-9-001 634-081-9-001 741-080-9-001 AT 35 AT 55 AT 70 ATW 400 CA 73 CA 75 CA 77 CA79 CS 100 CS 300 CS 500 Description Replacement DC Power Cord Replacement Mounting Bracket Replacement Thumb Screws Replacement Microphone Bracket 28 Full Range Center Load, Magnetic Mount Antenna 25 Glass Mount Antenna 39 Full Range Base Load, Magnetic Mount Antenna 44 Full Range, Center Load, Dual Band CB/WX Antenna Replacement Dynamic Microphone Power Microphone Noise Canceling/Power Microphone Echo/Noise Canceling Microphone Dynamic External Speaker Noise Canceling External Speaker Dynamic Noise Canceling With Talk Back External Speaker Cost Ea. $7.50 $4.50 $0.60 $0.45 $19.95 $27.95 $24.95 $27.95 $12.95 $21.95 $24.95 $59.95 $14.95 $19.95 $24.95 Qty. Amount
Shipping & Handling
Amount of Shipping/ Order Handling $25.00 and under $4.75 minimum $25.01-$40.00 $6.95 $40.01-$80.00 $9.00 $80.01-$120.00 $10.00 $120.01-$160.00 $11.50 $160.01 and up $14.25 For AK, HI and PR please add an additional $15.00 for UPS shipments.
Tax Table Illinois residents add 7% Michigan residents add 4 % Cook Co. residents add.75% (7.75% total) Ohio residents add 6% Chicago residents add 1% (8.75% total) Wisconsin residents add 5% Indiana residents add 5%
Prices subject to change without notice. Subtotal (Tax if applicable) Shipping/handling Total
8:00 am - 8:00 pm, M-F, CST. Make check or money order (no stamps) payable to: Cobra Accessories Dept. 6500 West Cortland St. Chicago, IL 60707
For credit card orders fill out order form and fax to: 1.773.622.2269 or call 1.773.889.3087 (Press 1 from the main menu) Please print clearly
Name Address (No P.O. Box) City State Zip Telephone ( ) Credit Card No. Exp. Date Customer Signature Circle One: Visa MasterCard Discover
Allow 4 to 6 weeks for delivery. Offer valid in Continental U.S. only.
Cobra Electronics Corporation 6500 West Cortland Street Chicago, IL 60707
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.
24 hours a day, 7 days a week. A Consumer Service Representative can be reached through this same number 8:00 am -
8:00 pm, Monday through Friday, CST.
Technical assistance is also available on-line in the Frequently Asked Questions (FAQ) section at www.cobraelec.com or by e-mail to firstname.lastname@example.org
If you think you need service call 1.773.889.3087
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. 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 W. Cortland St., Chicago, IL 60707. 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 1.773.889.3087 for assistance.
Cobra Electronics Corp. 1999 Printed in Thailand Part No. 545-024-N-001
29 LTD Classic
Operating Instructions for your Cobra 29 LTD Classic
Ingenious Products for Easier Communication.
The CB Story
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.) 1
FCC regulations permit only transmissions (one party to another) rather than broadcasts (to a wide audience). Thus, advertising is not allowed on CB Channels because that is broadcasting.
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 Operators License.
Replacement or substitution of transistors, regular diodes or other parts of a unique nature, with parts other than those recommended by Cobra, 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 operators license.
Whats Included with Your 29 LTD Classic
5 1. 2. 3. 4. 5. A1 CB transceiver Microphone Transceiver bracket Microphone bracket Operating Manual 6. DC power cord 7. FCC rules 1. (not shown)
Controls and Indicators
1. Power On/Off,Volume Control 2. Squelch Control 3. Dynamike 4. RF Gain 5. Delta-Tune 6. SWR CAL 7. Channel Selector 8. LED Channel Display 9. ANT Indicator 10. RX (Receive)/ TX (Transmit) LED Indicator 11. Channel 9/ Normal Switch 12. Dimmer Switch 13. CB/PA Switch 14. NB/ANL ANL Off Switch 15. S/RF SWR CAL Switch 16. Signal Strength Meter 17. Microphone Back Side 18. Public Address Speaker Jack 19. External Speaker Jack 20. Antenna Connector 21. Power Jack
SWR RF RF SIG 1
Our Thanks to You
Thank you for purchasing the Cobra 29 LTD Classic CB Radio. Properly used, this Cobra product will give you many years of reliable service.
Cobra Customer Service Live operators are available M-F 8:00 am - 8:00 pm CST at: 773.889.3087 Automated Technical Assistance available 24 hours a day, seven days a week. E-mail questions to: email@example.com Cobra on the World Wide Web: Frequently Asked Questions (FAQ) can be found on-line at: www.cobraelec.com
Should you encounter any problems with the product or not understand its many features, please refer to this owners manual. If , after referring to the manual, you still need help, call Cobra Customer Service at 773.889.3087.
NORMAL S207-1 CH9 SWITCH R95 56R L21 LA194 C100 103
ALL DIODES ARE IS2075
R86 100R R94 100R C86 330p
FROM PLL 5 VOLT REG
R96 33R R62 2K2 D14 IS2075 CL16 LC071 L15 CR123 1R C60 4n7 C62 220p L26 LD083 C59 270p C126 22p R56 22R C53 150p C61 100p C58 220p TR14 2SC2029 R55 1K 1/2 WATT L11 C57 82p R54 680R R53 560R D12 R52 330R D10 C56 47p CL14 LA212
P1 P2 P3 P4 P5 P6 T Q T/R 1/2R VCC
FIN GND FS AO
R93 10K C94 8p C102.47u CC87 56p C92 82p C163 220p L22 LA166 R102 3K3 CR89 22K D13 IS2339 or SVC251 C91 220p R91 5K6 C99 2u2 C98 2u2 R90 1K8 R88 10K C89 47p C90 15p TP1 VCO
Euro Radio Co
TP4 L13 L2 L12 L2 L10 LD114 J202 ANT L17 LA2?? NOTE: R58 can be from 1R to 10R R58 1R
CCVdd L18 LA201 L19 LA2?? Vdd
S301 CHANNEL SWITCH
D36 D314 D37 D38 D15 IS2075
L20 LA099 R63 39R
AI PD TC LD RB RI R0
CC104 15p AMP MIX Vss AMP
CTR16 2SC2076 CC106 39p
AMP MIX Vss AMP
ALL DIODES ARE 1N60
R61 * 680R
C155 150p CR60 * 47R NOTE: R60 can be from 22R to 47R
TP3 C97 1n
NOTE: R61 can be from 680R to 1K2
VR6 1K AWI PRE-SET TR24 2SC945 R81 8K2
D401 CHANNEL DISPLAY
ALWAYS 8.00 VDC
AWI R82 10K
D501 1N60 SWR CAL VR5 10K RF METER PRE-SET S/RF
S204 - 1 SWR | CAL | S/RF
VR206 5K? SWR CAL CONTROL
L24 LA212 R108 22K TR1 2SC1675 TR20 2SC1675 VR204 20K
TR5 2SC945 TR4 2SA733 CC5 200p R5 10K R6 1K R7 47K C6 680p R8 100K VR2 20K S METER PRE-SET CAL S/RF S204 - 2 SWR | CAL | S/RF M201
TR2 2SC1675 CL1 LA212 R2 5K6 R3 10K
R110 2K7 CR111 6K8
X1 10.240 MHz D16 IS2339 or ISV215 R106 12K R107 22K C1 10p C129 10p R108 2K2
R1 1M C130 220p
ANL OFF NB/ANL S203 - 1 NB/ANL SW D5 1N60 NB/ANL
ANL OFF S203 - 2 NB/ANL SW D7 IS2075 R126 3K9 CS/RF SWR METER
NOTE: Diodes IS2075 can be replaced with 1N4148. Stuck in TX, Check C117, change it to a 16 volt type. No RX/TX, Check for 5 volts at PLL (C112, R86 and R94). No RX and no channel display, Check R103 for cold solder joint. No TX audio and PA not working, Check TR17 is turn on, you may find it is missing Base volts (R70). AWI LED always on, Check TR24 known to go short.
D2 1N4148 D1 1N4148 D3 1N4148 R13 5K6 CC11 10u R12 22K R15 100R C10 1n L2 LA166 C13 220p C8 15p
CH1 = 16.270 MHz CH40 = 16.710 MHz 1st MIXER
L3 LA212 FET1 2SK19 C15 10n
L4 LA180 L5 LA277 FL1 10.695 MHz 10G7.0A1 L6 LA212 C18 680p L7 LA212
L9 LA277 D4 1N34 R129 68K
TR8 2SC1675 CR21 4K7 R30 5K6 C23 39n R127 10K R26 27K R29 100R CR33 220R R32 1K5 C27 10u R125 3K9 CCR128 2K2 R35 22K CR43 3K9 R44 39K VR3 100K SQUELCH PRE-SET CD6 1N60 R127 560K VR303 50K
R18 100R R19 10K CR20 2K2
TR6 2SC945 R141 33K R9 2K2 R10 18K R11 10K C12 4u7
R31 47K NOTE: Low RX R31 Known to go o/c.
R42 10K VR202 50K
R41 10K TR11 2SC945 TR12 2SC945 R45 10K
TO PLL 5 VOLTS
C112 470u C133 104
PLL 5 VOLT REG
R124 10R CR98 56R
Components with (?) marks, values, and or circuit reference note known. if anyone knows, The correct values and or circuit reference please E-Mail me and I will correct them.
R49 100K R47 10K
R51 3RWATT SP201 SPEAKER
D19 5.1 Volt
IC4 TA7222AP C45 47u T1 E1-28
R114 820R TR22 2SC2028
C42 1000u C48 470u
TR13 2SC945 R48 100K D18 1S2075 R99 4K7 C36 33u
R130 1R CCC47 103
J2 EXT SPEAKER
R117 10R 1 WATT
D21 1S2075 DIMMER S202-1 R103 200R 2 WATT TR21 2SA733 S202-2 CB/PA CB PA
J1 PA JACK
L201 CC125 1000u T2 CHOKE S201 ON/OFF POWER R104 15R 1 WATT R105 820R
C59? 10u Tant
CVR4 500R AMC C76 103
C116 47u R64 2K7 R65 4K7 TR17 2SC458 TR18 2SA733 R122 3K3 D11 IS2075 C73 1u R73 2K2 J201 MIC-SOCKET C74 470p 3 VR201 5K 2
DC 13.8 VOLTS C201 103
D23 1N4003 C202 103
D22 9.1 Volt
R67 33R R69 22K
R68 5K6 L?? LD075
C72 3u3 Tant C71 220u R142 5K6 R72 2K2 C78 103
ALWAYS 8.00 VDC 13.8 VDC
|Product Type||CB radio|
|Sensitivity (12dB SINAD)||1 uV|
|Controls||Power/volume knob, channel selector knob, squelch knob, dimmer knob, emergency/information/normal switch, gain knob, noise blanker (NB) switch, CB/PA switch, microphone sensitivity knob, SoundTracker button|
|Two-Way Radio Display Information||Channel indicator|
|FCC Licensing Requirements||Not required|
|Connections||1 x microphone jack 1 x DC power input 1 x antenna - SO-239 2 x speaker jack|
|Included Accessories||Mounting kit, external microphone|
|Service & Support||2 years warranty|
|Service & Support Details||Limited warranty - 2 years|
|Universal Product Identifiers|
|Part Number||29 LTD ST|
Emergency 4 TL350 Peak And Tune Office DVD-1000 125 SM HTR-5630 XD-J220 MS-1942G TI-5032 SVC DSP1124P TX-20LA80FS CLT2054 CLD-3030 IC-M59euro NN-C877W Tour 2005 HC3000U RUX-4280 79-290 KDC-BT40U Cb Radio MFC10 DVP-PQ1 H25C34Y PFE-900E Mouse V3688 KDC-307 SD-CX11 KDL-32XBR4 UX-F10CW Platinum HS200G WN511T Powerglide2 CMP6085W 78-8846 PSR 12-2 XT1500-IC RCM 168 Power Cord TM-1000 CI Seiko 7D48 Nokia 8850 MD-101A RX-ES25 NN-A873sbbpq FX-570AD MF-JET 485 Schematic 1222FX Interface Hypermag Control PEG-S320 Alesis ION RX-DT505 Pl9127C LE40S66BD CQ-C9800W Cect P168 Meter III EP-6VBA IT7-MAX2 Pundit-AE3 ZD22 6R Reviews 1100 S Modifications IST DS Parts TL-SL2452WEB Yamaha VX DAP70 Le26R41B Professional Faceplate Travelmate 3260 T2408 UN32C5000QF 22DC279-62P AF200T OT120 Satellite A205 HK654200FB DSC-R1 MHC-DP1000D CT-940 Comfort Nokia 7370 TA-FE610R Dopod 900 Actifry ESF63020X ROC 400 SA1VBE08 Nokia 6300 XR-10S EW880F D520 Zoom SRU5010-86 TXP42S20ES ESP100 Axis-1 DFI 50 Casio FZ-1 SG-165
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