Cobra Electronics 29 LTD CHR User Manual

Download

How to Use Your

Contents

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 Interference ..........................................................7

Operating Your 29 LTD CHR

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

TalkBack..............................................................................................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.............................................................................32

29 LTD CHR Specifications ............................................................33

Warranty Information .....................................................................34

Optional Accessories .................................................................35-36

Accessory Order Info .......................................................................37

If YouThink You Need Service ...................................Back Cover

Cobra 29 LTD CHR

Features of This Product

• 40 CB Radio Channels

• Special Edition Chrome Cabinet & Microphone

• Heavy-Duty Dynamic Microphone

• Full4Watts AM RF Power Output

• SWR Calibration Meter

• Talk Back

• Instant Channel 9

• 4-Pin Front Mount Microphone Connector

• Delta -Tune

• Switchable Automatic Noise Limiter & Noise Blanker

• Adjustable Dynamike® Boost

• 9 Ft. Mic Cord

• RF Gain

Installation

Location

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 self-tapping screws and star washers.The mounting must be mechanically strong, conveniently located.

Location

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

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.

Connect the antenna cable plug to the receptacle marked “ANT” on the back of the unit.

Drill the holes and secure the bracket.

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 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.

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.

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 supplied. Bracket should be placed under the dash so microphone is readily accessible.

Attach the 4-pin microphone cable to receptacle, on the front of unit and install unit on bracket securely.

Installation

Antennas

Ignition Noise Interference

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 & 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.

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 installation , consult your dealer for information regarding an adequate grounding system and prevention of electrolysis between fittings in the hull and water.

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

Turning On Setting Channel

Turning On

Make sure the power cord, antenna and microphone are connected to their proper connectors before starting.

The CB/PA button should be in the CB position.

Setting Channel Selector

Select one of forty channels and adjust volume.The selected channel is indicated by the LED readout directly above the channel selector knob

Selector

Rotate the On/OffVolume knob clockwise to a normal listening level.

Operation

Calibrate For SWR (Standing Wave Ratio)

Note

Antenna Indicator LED will illuminate when TX if SWR is high.

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.

Select channel 20.

Push and hold mic button.

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).

Switch to the CAL position.

While holding mic button adjust the SWR CAL knob so the meter needle swings to the CAL ▼ mark on the meter (located on the right).

continued

1110

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 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 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.

To Receive

Rotate the On/Off Volume knob clockwise the green RX/TX LED will be illuminated.

To Receive

Operation

Selecting A Channel

S-Meter

Selecting A Channel

Switch to NOR to select desired channel.

S-Meter

Swings proportionately to strength of incoming signal when receiving.

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 vehicle’s 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.

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.

The S/RF-SWR-CAL switch must be in the S/RF position to read the meter.

Operation

Bright/Dim Switch

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.

Rotate the RF Gain knob counterclockwise to reduce gain in strong signal areas. In weak signal areas turn clockwise to increase gain.

RF Gain Control

Note

The RF Gain is used to optimize reception in weak signal areas.

1716

Operation

Setting Delta-Tune

Setting Squelch

Gate closed

Setting Delta-Tune

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.

Setting Squelch

Squelch is the “control gate” for incoming signals.

Full counterclockwise rotation opens the “gate” allowing all signals in.

To achieve the Desired Squelch Setting (DSS), turn the Squelch control counterclockwise until you hear noise. Now turn the control clockwise just until the noise stops. This is the DSS setting.

Gate open

Gate set to Desired Squelch Setting (DSS)

Full clockwise rotation closes the gate allowing only very strong signals to enter.

Operation

To Transmit 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®

To Transmit

Select desired channel.

Setting Dynamike®

This controls the microphone sensitivity (outgoing audio level).

Transmit

Push and hold mic button to transmit.Transmitter is now activated.Whentransmitting,hold the microphone two inches from your mouth and speak in a clear, normal voice.Release to receive.

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.

TalkBack

Initially, set fully clockwise so that maximum voice volume is available.Dynamike® may have to be reduced in some conditions.

Operation

RF Meter

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.

External Speaker

The external speaker jack is used for remote receiver monitoring.

Connect an external speaker to the external speaker jack on the rear panel.

External Speaker

Note

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.

Operation

PA (Public Address)

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.

Note

Activity on the CB channel will be heard through the PA speaker.Adjust volume control to a normal listening level.

PA (Public Address)

Connect an external PA speaker to the PA jack on the rear panel.

Push and hold microphone button and speak in a normal voice.Your voice will now transmit on the PA speaker.

Set CB/PA switch to PA position.

Adjust PA speaker volume with the

Dynamike® control.

2524

Home And Office Set-Up

Temporary Mobile Set-Up

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.

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.

Simply connect the red (+) and black (-) leads of the transceiver to the corresponding terminals of the power pack.

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.

Temporary Mobile Set-Up

How Your CB Can Serve You

A Few Rules You Should Know

Channel 9 Emergency Messages

Note

If no response on channel 9, try channels 19 or 14.

• 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.

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 all Sign Identify yourself.

L ocation Be exact.

I njuries Number.Type.Trapped?

P roblem Give details and help needed.

Transmit CLIP repeatedly so any monitor can assist.

The FCC gives these examples of 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 I-94 at

Exit 11. Send police and ambulance.”

No “Traffic moving smoothly on I-94.”

Yes “Weather Bureau has issued

thunderstorm warning. Bring sailboat into port.”

No “Attention motorists.

Weather Bureau advises snow tomorrow will accumulate 4 to 6 inches.”

Yes “Fire in building at 539 Main,

Evanston.”

No “Halloween patrol number 3.

All quiet.”

2928

How Your CB Can Serve You

CB 10-Codes

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 Meaning

10-1 Receiving poorly

10-2 Receiving well

10-3 Stop transmitting

10-4 OK, message received

10-5 Relay message

10-6 Busy,stand by

10-7 Out of service,leaving

10-8 In service,subject to call

10-9 Repeat message

10-10 Transmission completed standing by

10-11 Talking too rapidly

10-12 Visitors present 10-13 Advise weather/roads 10-16 Make pick up at 10-17 Urgent business 10-18 Anything for us? 10-19 Return to base 10-20 My location is 10-21 Call by phone 10-22 Report in person to 10-23 Stand by 10-24 Completed last assignment 10-25 Can you contact 10-26 Disregard last info 10-27 Moving to channel 10-28 Identify your station

Code Meaning

10-29 Time is up for contact

10-30 Does not conform to FCC rules

10-33 Emergency traffic

10-34 Trouble at this station

10-35 Confidential information

10-36 Correct time is

10-37 Wrecker needed at

10-38 Ambulance needed

10-39 Message delivered

10-41 Turn to channel

10-42 Traffic accident at

10-43 Traffic tie up at

10-44 Have a message for

10-45 All units within range please report

10-50 Break channel

10-60 What is next message number?

10-62 Unable to copy.Use phone

10-63 Net directed to

10-64 Net clear

10-65 Awaiting your next message/assignment

10-67 All units comply

10-70 Fire at

10-71 Proceed, transmission in sequence

10-77 Negative contact

10-81 Reserve hotel room for

10-82 Reserve room for

10-85 My address is

10-91 Talk closer to mic

10-93 Check my frequency on this channel

10-94 Give me a long count

10-99 Mission completed, all units secure

10-200 Police needed at

3130

Frequency Ranges

The COBRA 29 LTD CHR 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

1 26.965 21 27.215 2 26.975 22 27.225 3 26.985 23 27.255 4 27.005 24 27.235 5 27.015 25 27.245

6 27.025 26 27.265 7 27.035 27 27.275 8 27.055 28 27.285 9 27.065 29 27.295 10 27.075 30 27.305

11 27.085 31 27.315 12 27.105 32 27.325 13 27.115 33 27.335 14 27.125 34 27.345 15 27.135 35 27.355

16 27.155 36 27.365 17 27.165 37 27.375 18 27.175 38 27.385 19 27.185 39 27.395 20 27.205 40 27.405

29 LTD CHR Specifications

ENERAL

Channels . . . . . . . . . . . . . . . . . . . . . . . . . . CB - 40 CH

Frequency Range . . . . . . . . . . . . . . . . . . CB - 26.965 to 27.405 MHz

requency 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)

Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5/8” D x 7-9/32” W x 2-13/64” H

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 lbs.

Antenna Connector . . . . . . . . . . . . . . . .UHF; SO-239

Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Illuminated; indicates relative power output,

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 µV for 10 dB (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

Automatic Gain Control (AGC) . . . . . .Less than 10 dB change in audio output for

RF Gain Control . . . . . . . . . . . . . . . . . . . .Adjustable for optimum signal reception

Noise Blanker . . . . . . . . . . . . . . . . . . . . . .RF type

Squelch . . . . . . . . . . . . . . . . . . . . . . . . . . . .Adjustable;thresholdless than 1µV

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

ExternalSpeaker (Not supplied) . . . . . .8 ohms;disables internal speaker

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;

(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)

WARNING: This product contains lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm..

Wash handsafter handling.

Receive: Squelched,0.3A; full audio output, 1.2A (nominal)

received signal strength and VSWR

2nd: 455 KHz

inputs from 10 to 50,000 microvolts

when connected

separate jack provided

3332

Limited One Year Warranty

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,

Cobra Electronics Corporation

6500 West Cortland Street Chicago,Illinois 60707 USA

www.cobra.com

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;

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.

Replacement DC Power Cord

For in vehicle use 426-002-N-001

Replacement Microphone Bracket

For in vehicle use 741-080-9-001

4 Pin Premium NoiseCancelling Microphone

HG M84

Optional Accessories

Replacement Mounting Bracket

For in vehicle use 251-353-9-001

21” Base Loaded Magnet Mount Antenna

HG A1000

4 Pin Premium NoiseCancelling Microphone

Wood Grain HG M84W

Replacement Thumb Screws

For in vehicle use 634-081-9-001

38” Base Loaded Magnet Mount Antenna

HG A1500

Optional Accessories cont.

4 Pin Replacement Dynamic Microphone

HG M73

Dynamic External Speaker

HG S100

Power Microphone

HG M75

Noise Canceling External Speaker

HG S300

Optional Accessories

•

You can find quality Cobra products and accessories at your local Cobra dealer, or in the U.S.A., you can order directly from Cobra. See ordering info on page 37.

4 Pin Noise Canceling Microphone

HG M77

Noise Canceling With Talk Back External Speaker

HG S500

29 LTD CHR

The CB Story

Cobra Electronics Corporation 6500 West Cortland Street Chicago, IL 60707 USA

If You Think You Need Service

Fortechnicalassistance,please callour Automated HelpDesk which canassist

youby 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. 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.

Operating Instructions for your Cobra 29 LTD CHR

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 “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 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 operator’s license.

What’s Included with Your 29 LTD CHR

1. CB transceiver 6. DC power cord

2. Microphone 7. FCC rules

3. Transceiver bracket 1. (not shown)

4. Microphone bracket

5. Operating Manual

Controls and Indicators

1. 4-PinMicrophoneConnector

2. Power On/Off/Volume/

Squelch Control

3. Dynamike®

4. RF Gain

5. Delta-Tune

6. SWR CAL / Talk Back

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

2 3 4 5 6 7

20 21

18 19

Our Thanks to You

Accessory Order Info

Ordering From U.S.A.

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.

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

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 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

Item # Description

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 Replacement Microphone Bracket HG A1000 21” Base Loaded,

HG A1500 38” Base Loaded

HG M84 4 Pin Premium Noise-Cancelling

HG M84W 4 Pin Premium Noise-Cancelling

HG M73 4 Pin Replacement Dynamic

HG M77 4 Pin Noise-Cancelling

HG M75 Power Microphone HG S100 Dynamic External Speaker

HG S300 Noise-Cancelling External

HG S500 Noise-Cancelling with Talk Back

Magnetic Mount Antenna

Microphone

Microphone ( Wood Grain)

Microphone

Speaker

External Speaker

Cobra Electronics 29 LTD CHR User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual