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Frequency Ranges

32

The COBRA 29 LTD BC 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.

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

Channel

Channel

CB

Freq.

CB

Freq.

Channel In MHz

Channel In MHz

29LTDBC_MANL.qx:29LTDDEJR_manual.qx  9/12/07  5:05 PM  Page 32

Содержание 29 LTD BC

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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