Table of Contents
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Contents
Features..................................................................................................1
The CB Story.........................................................................................A1
FCC Regulations
FCC Warnings
Included Accessories
Controls & Indicators.......................................................................A2
Our Thanks to You .............................................................................A3
Location .............................................................................................2
Mounting and Connection .........................................................2
CB Antenna.......................................................................................6
Marine Installation .........................................................................6
Ignition Noise Interference ..........................................................7
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
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.............................................................................32
29 LTD DE LE Specifications .........................................................33
Warranty Information .....................................................................34
Optional Accessories .................................................................35-36
Order Form ...........................................................................................37
If You Think You Need Service ...................................Back Cover
How to Use Your
Cobra 29 LTD DE LE
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 Front Mount Microphone
Connector
• Delta -Tune
• Switchable Automatic Noise
Limiter & Noise Blanker
• Adjustable Dynamike Boost
• 9 Ft. Mic Cord
• RF Gain
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Table of Contents
Related Manuals for Cobra 29LTDDELE
Summary of Contents for Cobra 29LTDDELE
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Page 1: Table Of Contents
Warranty Information ...34 Optional Accessories ...35-36 Order Form ...37 If You Think You Need Service ...Back Cover How to Use Your Cobra 29 LTD DE LE Features of This Product • 40 CB Radio Channels • Heavy-Duty Dynamic Microphone • Full 4 Watts AM RF Power Output •... -
Page 2: Installation
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. - Page 3 Installation Connect the antenna cable plug to the receptacle marked “ANT” on the back of the unit. continued...
- Page 4 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.
- Page 5 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.
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Page 6: Antennas Cb Antenna
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. -
Page 7: Ignition Noise Interference
The unit requires very little current and therefore will not significantly discharge the vehicle’s battery. Even though the Cobra 29 LTD DE LE has an automatic noise limiter, in some installations ignition interference may be high enough to make good communications impossible. -
Page 8: Operating Your 29 Ltd De Le Turning On Your Cb
Operation Turning On Turning On Make sure the power cord, antenna and microphone are connected to their proper connectors before starting. CB/PA button should be in the CB position. Rotate the On/Off Volume knob a normal listening level. clockwise to... -
Page 9: Setting Channel Selector
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 Operation Setting Channel Selector... -
Page 10: Calibrate For Swr (Standing Wave Ratio)
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. - Page 11 Push and hold mic button. 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). Operation Note Calibration must be made in an open area (never in a garage). Vehicle doors must be closed.
- Page 12 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.
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Page 13: To Receive
Operation To Receive To Receive Rotate the On/Off Volume knob clockwise the green RX/TX LED will be illuminated. -
Page 14: Selecting A Channel
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. S/FR-SWR-CAL switch must be in the S/RF position to read the meter. -
Page 15: Nb-Anl/Anl/Off
NB-ANL/ANL/OFF (Noise Blanker/Automatic Noise Limiter) Switch When switched to Limiter is activated. This helps reduce noise created by the vehicle’s electronics. When switched to Noise Blanker is also activated, providing increased noise filtration. When switched to filtration will be turned off. ANL the Automatic Noise NB/ANL position the RF OFF position all noise... -
Page 16: Bright/Dim Switch
Operation Bright/Dim Switch Bright/Dim Switch Switch to BRT or DIM to control brightness of the channel indicator and multi-function meter for day or nighttime driving. -
Page 17: Rf Gain Control
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. Operation RF Gain Control Note The RF Gain is used to optimize... -
Page 18: Setting Delta-Tune
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”... - Page 19 Full counterclockwise rotation opens the “gate” allowing all signals in. To achieve the Desired Squelch Setting (DSS), turn the Squelch control 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)
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Page 20: To Transmit
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. -
Page 21: Transmit
Operation Transmit Transmit 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. -
Page 22: Rf Meter
Operation RF Meter RF Meter This meter swings proportionately to the RF output (outgoing signal) while transmitting. S/RF-SWR-CAL switch must be in the S/RF position. -
Page 23: External Speaker
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. -
Page 24: Pa (Public Address)
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. - Page 25 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. Operation...
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Page 26: Home And Office Set-Up
Do not attempt to operate this transceiver by connecting it directly to 120 vac. 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. -
Page 27: Temporary Mobile Set-Up
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... -
Page 28: How Your Cb Can Serve You
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 •... - Page 29 How Your CB Can Serve You The FCC gives these examples of permitted and prohibited messages for channel 9. These are only guidelines and not all-inclusive: Permitted Example Message “Tornado sighted six miles north of town.” “Post number 10. No tornado sighted.” “Out of gas on I-95 at mile marker 211.”...
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Page 30: Cb 10 Codes
How Your CB Can Serve You CB 10-Codes 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... - Page 31 How Your CB Can Serve You 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...
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Page 32: Frequency Ranges
Frequency Ranges The COBRA 29 LTD DE LE 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. -
Page 33: 29 Ltd De Le Specifications
29 LTD DE LE Specifications GENERAL Channels ......CB - 40 CH Frequency Range ....CB - 26.965 to 27.405 MHz Frequency Tolerance . -
Page 34: Warranty Information
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. -
Page 35: Optional Accessories
Replacement DC Power Cord For in vehicle use 426-002-N-001 Replacement Microphone Bracket For in vehicle use 741-080-9-001 54” Base Loaded Magnet Mount Antenna HG A2000 $28.95 Optional Accessories Replacement Mounting Bracket For in vehicle use $7.50 251-353-9-001 21” Base Loaded Magnet Mount Antenna HG A1000 $0.45... - Page 36 HG S100 $21.95 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 773.889.3087 (Press 1 from the main menu) 8 a.m.-6 p.m. M-F CST.
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Page 37: Order Form
“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. - Page 38 29 LTD DE LE Operating Instructions for your Cobra 29 LTD DE LE Edition CB Radio...
- Page 39 29 LTD DE LE Operating Instructions for your Cobra 29 LTD DE LE Edition CB Radio 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.
- Page 40 Controls and Indicators 4-Pin Microphone Connector Power On/Off/Volume/ Squelch Control Dynamike RF Gain Delta-Tune SWR CAL Channel Selector LED Channel Display ANT Indicator RX (Receive)/ TX (Transmit) LED Indicator Channel 9/ Normal Switch Dimmer Switch CB/PA Switch NB/ANL ANL Off Switch S/RF SWR CAL Switch Signal Strength Meter Microphone...
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Page 41: Our Thanks To You
Thank you for purchasing the Cobra 29 LTD DE LE 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. - Page 42 $21.95 $28.95 $32.95 Subtotal (Tax if applicable) Shipping/handling Total Make check or money order (no stamps) payable to: Cobra Accessories Department 6500 West Cortland Street Chicago, IL 60707 USA State Exp. Date Shipping & Handling Amount of Shipping/ Order Handling $25.00 and under $4.75 minimum...