Specifications

ManualsBrandsCobra ManualsGadgets29LTD HD LE

How to Use Your

Cobra 29 LTD Classic

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 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.............................................................................32

29 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

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

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

Summary of content (46 pages)

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Contents 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 .............................................................................
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Installation Location 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 Mounting and Connection 1 Hold the radio with the mounting bracket in the exact desired location.
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Installation DATE OF MFG :JUNE 98 FCC ID:BBO3K229LTD COBRA MADE IN CHINA ANT 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 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.
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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. 4 4 In a negative grounded vehicle, connect the red lead of the DC power cord to an accessory 12 volt fuse. 5 Connect the black lead to the negative side of the vehicle. This is usually the chassis.
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Installation FCC ID:BBO3K229LTD COBRA ANT PA.SP. EXT.SP. + POWER – MADE IN CHINA NEERED PRODUCT OF . CHICAGO, ILL.60707 6 Plug power cable into back of unit marked “Power”. Be sure to observe polarity markings. 7 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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Antennas CB Antenna 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 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.
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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.
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Operation Turning On Turning On Make sure the power cord, antenna and microphone are connected to their proper connectors before starting. 2 SWR 3 CAL RF SIG 1 3 5 79 VOLUME SQUELCH OFF 1 SWR NB/ ANL ANL CAL OFF S/RF CB B +30dB PA RFGAIN DYNAMIKE MIN MAX MIN D MAX The CB/PA button should be in the CB position.
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Operation Setting Channel Selector Setting Channel Selector RX/TX NB/ ANL ANL OFF CB BRT CH9 PA DIM NOR RFGAIN D E LTAT U N E SWR CAL AX 1 MIN MAX Select one of forty channels and adjust volume.
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Operation 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 NB/ ANL ANL S OFF Note S Antenna Indicator LED will illuminate when TX if SWR is high. M CB BRT CH9 PA DIM NOR RFGAIN E D E LTAT U N E SWR CAL MAX 1 MIN MAX Select SWR channel 20.
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Operation PUSH & HOLD Note 3 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. RX/TX NB/ ANL ANL OFF CB BRT CH9 PA DIM NOR RFGAIN D E LTAT U N E SWR CAL AX 4 MIN MAX While holding mic SWR 2 button adjust the RF SWR CAL knob so the SIG 1 3 meter needle swings to the CAL ▼ mark on the meter (located on the right).
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Operation SWR 2 3 CAL RF SIG 1 VOLUME 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.
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Operation To Receive To Receive R SWR 2 3 CAL RF SIG 1 VOLUME 3 5 79 SWR NB/ ANL ANL CAL OFF S/RF CB BRT CH9 PA DIM NOR +30dB SQUELCH DYNAMIKE RFGAIN D E LTAT U N E S OFF 1 MIN MAX MIN MAX Rotate the On/Off Volume knob clockwise the green RT/TX LED will be illuminated.
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Operation Selecting A Channel Selecting A Channel RX/TX S A IN S BRT CH9 DIM NOR D E LTAT U N E SWR CAL M MAX 1 S-Meter Switch to NOR to select desired channel. S-Meter Swings proportionately to strength of incoming signal when receiving. SWR 2 3 CAL RF SIG 1 VOLUME 1 14 3 5 79 SWR NB/ ANL ANL CAL OFF S/RF C +30dB SQUELCH DYNAMIKE The S/FR-SWR-CAL switch must be in the S/RF position to read the meter.
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Operation NB-ANL/ANL/OFF (Noise Blanker/Automatic Noise Limiter) Switch SWR 2 3 CAL RF SIG 1 VOLUME OFF 3 5 79 SWR NB/ ANL ANL CAL OFF S/RF CB B PA D NB-ANL/ANL/ OFF (Noise Blanker/ Automatic Noise Limiter) Switch +30dB SQUELCH DYNAMIKE MIN MAX RFGAIN MIN D MAX Note 1 When switched to ANL the Automatic Noise Limiter is activated. This helps reduce noise created by the vehicle’s electronics.
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Operation Bright/Dim Switch Bright/Dim Switch RX/TX S A IN S BRT CH9 DIM NOR D E LTAT U N E SWR CAL M MAX 1 16 Switch to BRT or DIM to control brightness of the channel indicator and multi-function meter for day or nighttime driving.
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Operation RF Gain Control RF Gain Control The RF Gain is used to optimize reception in strong or weak signal areas. R SWR 2 3 CAL RF SIG 1 VOLUME OFF 1 3 5 79 SWR NB/ ANL ANL CAL OFF S/RF CB BRT CH9 PA DIM NOR +30dB SQUELCH DYNAMIKE MIN MAX RFGAIN MIN D E LTAT U N E MAX Note The RF Gain is used to optimize S reception in weak signal areas. Turn counterclockwise to reduce gain. Rotate the RF Gain knob counterclockwise to reduce gain in strong signal areas.
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Operation Setting DeltaTune 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. RX/TX SWR 2 3 RF SIG 1 3 5 79 VOLUME SWR NB/ ANL ANL CAL OFF S/RF CAL CB BRT CH9 PA DIM NOR +30dB DYNAMIKE SQUELCH RFGAIN D E LTAT U N E SWR CAL F MIN 1 Setting Squelch MAX MIN MAX Rotate Delta-Tune knob to the center position for optimum tuning.
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Operation Gate open RX/TX 2 SWR 3 CAL RF SIG 1 3 5 79 VOLUME SWR NB/ ANL ANL CAL OFF S/RF CB BRT CH9 PA DIM NOR STRONG SIGNALS +30dB SQUELCH RFGAIN DYNAMIKE D E LTAT U N E S W R C ASIGNALS L MEDIUM MAX MIN WEAK SIGNALS MAX Full counterclockwise rotation opens the “gate” allowing all signals in.
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Operation To Transmit To Transmit RX/TX Caution! SWR 2 3 CAL NB/ ANL ANL S/RF CB SWR Be sure the is properly SIG antenna 1 3 5 7 9 +30dB PA OFF CAL connected to the radio before RFGAIN DYNAMIKE VOLUME SQUELCH transmitting. Prolonged transmitting without an antenna, or a poorly matched antenna, F MAX MIN MAX couldO Fcause damage to theM I N transmitter. BRT CH9 DIM NOR D E LTAT U N E SWR CAL Be sure to read the F.C.C. Rules and Regulations included with this unit before transmitting.
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Operation Transmit Transmit PUSH & HOLD 1 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.
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Operation RF Meter RF Meter This meter swings proportionately to the RF output (outgoing signal) while transmitting. SWR 2 3 CAL RF SIG 1 VOLUME 3 5 79 SWR NB/ ANL ANL CAL OFF S/RF CB +30dB SQUELCH DYNAMIKE PA RFGAIN The S/RF-SWR-CAL switch must be in the S/RF position.
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Operation External Speaker External Speaker The external speaker jack is used for remote receiver monitoring. Note ANT ID:BBO3K229LTD COBRA ADE IN CHINA PA.SP. EXT.SP. + POWER – OF GO, ILL.60707 1 Connect an external speaker to the external speaker jack on the rear panel. 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.
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Operation PA (Public Address) PA (Public Address) Note Speaker should have 8-ohm DATE OF MFG :JUNE 98 impedance and be rated to handle at least 4.0 watts. ANT FCC ID:BBO3K229LTD COBRA PA.SP. EXT.SP. + POWER – MADE IN CHINA SERIAL NO.:806135776 PRECISION ENGINEERED PRODUCT OF COBRA ELECTRONICS CORP. CHICAGO, ILL.60707 Note The speaker should be directed away from the microphone to prevent acoustic feedback. 1 Note Connect an external PA speaker to the PA jack on the rear panel.
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Operation PUSH & HOLD 3 Push and hold microphone button and speak in a normal voice. Your voice will now transmit on the PA speaker. RX/TX SWR 2 3 CAL RF SIG 1 VOLUME 3 5 79 SWR NB/ ANL ANL CAL OFF S/RF CB BRT CH9 PA DIM NOR +30dB SQUELCH DYNAMIKE RFGAIN D E LTAT U N E SWR CAL OFF 4 MIN MAX MIN MAX Adjust PA speaker volume with the Dynamike control.
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Home And Office Set-Up Base Station Operation (From 120V AC House Current) 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.
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E OF :JUNE 98 Temporary Mobile Set-Up ANT FCC ID:BBO3K229LTD COBRA PA.SP. EXT.SP. + POWER – MADE IN CHINA :806135776 ENGINEERED PRODUCT OF ECTRONICS CORP. CHICAGO, ILL.60707 2 Plug power cable into back of unit marked “Power”. Be sure to observe polarity markings. 3 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.
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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 Few Rules You Should Know Channel 9 Emergency Messages 1. Set to channel 9 for emergencies A.
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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 Yes “Tornado sighted six miles north of town.” “Post number 10. No tornado sighted.” No Yes No Yes No Yes No Yes No “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.
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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.
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How Your CB Can Serve You 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
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Frequency Ranges 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 1 2 3 4 5 26.965 26.975 26.985 27.005 27.015 21 22 23 24 25 27.215 27.225 27.255 27.235 27.245 6 7 8 9 10 27.025 27.035 27.055 27.065 27.075 26 27 28 29 30 27.
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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 . . . . . . . . . . .
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RF Wa ar rra nty 2 Ye Limited Two Year Warranty QUALITY SEAL Cobra Electronics Corporation 6500 West Cortland Street Chicago, Illinois 60707 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.
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RF Notes Notes 35
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Notes Notes 36
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Notes Notes 37
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Optional Accessories 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.
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Optional Accessories NOISE CANCELLING AND TALK BACK VOLUME CS-500 NOISE CANCELLING AND TALK BACK VOLUME NOISE CANCELLING Power Microphone CS-300For in vehicle use CA 75 CS-500 $21.95 Echo/Noise Canceling Microphone For in vehicle use CA 79 $59.95 Noise Canceling/Power Microphone For in vehicle use CA 77 $24.95 NOISE CANCELLING AND TALK BACK VOLUME NOISE CANCELLING CS-100 CS-300 Dynamic External Speaker For in vehicle use CS 100 $14.
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Accessory Order Form Item # Description Cost Ea.
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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. (773) 889-3087 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.
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29 LTD Classic Operating Instructions for your Cobra 29 LTD Classic CB Radio “Ingenious Products for Easier Communication.
PAGE 43
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.) 2 FCC Regulations 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.
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Controls and Indicators 1. Power On/Off,Volume Control 2. Squelch Control 17 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 15 14 13 12 11 10 RX/TX 13. CB/PA Switch SWR 16 14.
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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. 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 - 8:00 pm CST at: 773.889.
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