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How to Use Your

Cobra 29 LTD BC

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 BC

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 BC Specifications

................................................................33

Warranty Information

.....................................................................34

Optional Accessories

.................................................................35-36

Accessory Order Info

.......................................................................37

If You Think You Need Service

...................................Back Cover

Features of This Product

• 40 CB Radio Channels

• Special Edition Chrome Cabinet

& Microphone

• Heavy-Duty Dynamic

Microphone

• Full 4 Watts 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

1

29LTDBC_MANL.qx:29LTDDEJR_manual.qx  9/12/07  5:04 PM  Page 1

Summary of Contents for 29 LTD BC

Page 1: ...tting 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...

Page 2: ...ct 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...

Page 3: ...Installation 3 continued Connect the antenna cable plug to the receptacle marked ANT on the back of the unit 3 29LTDBC_MANL qx 29LTDDEJR_manual qx 9 12 07 5 04 PM Page 3...

Page 4: ...attery 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 grou...

Page 5: ...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 6 7 Attach the 4 pin microphone cable to receptac...

Page 6: ...prevention of electrolysis between fittings in the hull and water CB Antenna Note For optimum performance in passenger cars the ideal antenna location is on the center of the roof Second choice is on...

Page 7: ...iver 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 BC has...

Page 8: ...g On 8 Turning On Make sure the power cord antenna and microphone are connected to their proper connectors before starting 2 EDITION 1 Rotate the On Off Volume knob clockwise to a normal listening lev...

Page 9: ...ctor 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 1 29LTDBC_MANL qx 29LTDDEJR_m...

Page 10: ...osition 2 1 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 calib...

Page 11: ...uld be standing near the antenna See your antenna directions for more complete information continued Push and hold mic button 3 While holding mic button adjust the SWR CAL knob so the meter needle swi...

Page 12: ...s not acceptable The antenna indicator will light A slight antenna height adjustment higher or lower may be required Repeat relcalibration steps Repeat the same steps two through five on Channel 1 and...

Page 13: ...Operation 13 Rotate the On Off Volume knob clockwise the green RX TX LED will be illuminated To Receive 1 To Receive 29LTDBC_MANL qx 29LTDDEJR_manual qx 9 12 07 5 04 PM Page 13...

Page 14: ...read the meter Operation 14 1 S Meter S Meter Swings proportionately to strength of incoming signal when receiving Switch to NOR to select desired channel 1 Selecting A Channel Selecting A Channel 29L...

Page 15: ...e 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 fi...

Page 16: ...ght 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 1 29LTDBC_MANL qx 29LTDDEJR_manual qx 9 12 07...

Page 17: ...strong or weak signal areas Note The RF Gain is used to optimize reception in weak signal areas Rotate the RF Gain knob counterclockwise to reduce gain in strong signal areas In weak signal areas turn...

Page 18: ...bling you to capture a more readable signal as well as eliminate adjacent channel interference Setting Squelch Squelch is the control gate for incoming signals Setting Delta Tune 18 Operation 1 1 Rota...

Page 19: ...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 19 Operation 2 3 Gate open Gate se...

Page 20: ...ed 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 Operati...

Page 21: ...one two inches from your mouth and speak in a clear normal voice Release to receive 1 Setting TalkBack This control is used to adjust the desired amount of modulation talk back that is present at the...

Page 22: ...er 22 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 1 29LTDBC_MANL qx 29LTDDEJR_manual qx 9 12 07...

Page 23: ...d 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...

Page 24: ...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...

Page 25: ...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 3 4 29LTDBC_MANL qx 29LTDDEJR_manual qx 9 12 0...

Page 26: ...f 2 amps and a properly installed base station antenna Home And Office Set Up 26 Warning Do not attempt to operate this transceiver by connecting it directly to 120v ac Note For further information ca...

Page 27: ...le power adapter from your COBRA dealer This adapter and a magnetic mount antenna allow you to quickly install your transceiver for temporary use Connect properly installed and matched base station an...

Page 28: ...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...

Page 29: ...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 thund...

Page 30: ...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...

Page 31: ...l 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 assignmen...

Page 32: ...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...

Page 33: ...ypical 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 0...

Page 34: ...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 unauthoriz...

Page 35: ...Screws For in vehicle use 634 081 9 001 Replacement Microphone Bracket For in vehicle use 741 080 9 001 21 Base Loaded Magnet Mount Antenna HG A1000 38 Base Loaded Magnet Mount Antenna HG A1500 4 Pin...

Page 36: ...anceling External Speaker HG S300 Noise Canceling With Talk Back External Speaker HG S500 Power Microphone HG M75 Optional Accessories You can find quality Cobra products and accessories at your local...

Page 37: ...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...

Page 38: ...29 L TD BC 2007 Cobra Electronics Corporation Version A Printed in China Part No 480 436 P Operating Instructions for your Cobra 29 LTD BC 29LTDBC_MANL qx 29LTDDEJR_manual qx 9 12 07 5 05 PM Page 38...

Page 39: ...on 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 rec...

Page 40: ...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 Ja...

Page 41: ...eferring 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 Te...

Page 42: ...icrophone HG M75 Power Microphone HG S100 Dynamic External Speaker HG S300 Noise Cancelling External Speaker HG S500 Noise Cancelling with Talk Back External Speaker Item Description Accessory Order I...

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