background image

Operation

Operation

PA (Public

Address)

25

24

PA (Public Address)

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

Set     

CB/PA switch to PA position.

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.

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.

1

2

3

4

29LTDCHR_MANL_vC.qx_29LTDDEJR_manual.qx  6/17/14  2:59 PM  Page 24

Содержание 29 LTD CHR

Страница 1: ...ting 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 You Think You Need ...

Страница 2: ...ation 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 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 conven...

Страница 3: ...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 4 5 Plug power cable into back of unit marked Power Be sure to observe polarity markings ...

Страница 4: ... 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 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 inform...

Страница 5: ...one are connected to their proper connectors before starting Setting Channel Selector 2 1 Rotate the On Off Volume knob clockwise to a normal listening level Select one of forty channels and adjust volume The selected channel is indicated by the LED readout directly above the channel selector knob 1 29LTDCHR_MANL_vC qx_29LTDDEJR_manual qx 6 17 14 2 59 PM Page 8 ...

Страница 6: ... continued Switch to the CAL position 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 calibration is critical in order to achieve optimum performance Select channel 20 Push and hold mic button 3 While holding mic button adjust the SWR CAL knob so the meter need...

Страница 7: ...ht 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 40 This will check SWR for all channels 6 While still holding down the mic button set the S RF SWR CAL switch to the SWR position to read the SWR reading 5 Rotate the On Off Volume knob clockwise the green RX TX LED will be illuminated To Receive...

Страница 8: ...te The RF noise blanker is very effective in reducing repetitive noises such as ignition interference 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 ...

Страница 9: ...F Gain is used to optimize reception in weak signal areas Switch to BRT or DIM to control brightness of the channel indicator and multi function meter for day or nighttime driving Rotate the RF Gain knob counterclockwise to reduce gain in strong signal areas In weak signal areas turn clockwise to increase gain 1 1 29LTDCHR_MANL_vC qx_29LTDDEJR_manual qx 6 17 14 2 59 PM Page 16 ...

Страница 10: ...tops This is the DSS setting 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 Setting Squelch Squelch is the control gate for incoming signals 19 Setting Delta Tune 18 Operation Operation 1 2 1 3 Rotate Delta Tune knob to the center position for optimum tuning Gate open Gate set to Desir...

Страница 11: ...ing Operation Operation 1 Select desired channel 1 Initially set fully clockwise so that maximum voice volume is available Dynamike may have to be reduced in some conditions Transmit Pushandhold 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 1 Setting TalkBack This control is ...

Страница 12: ...he S RF SWR CAL switch must be in the S RF position 1 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 Connect an external speaker to the external speaker jack on the rear panel 1 29LTDCHR_MANL_vC qx_29LTDDEJR_m...

Страница 13: ...ransmit on the PA speaker Adjust PA speaker volume with the Dynamike control 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 1 2 3 4 29LTDCHR_MANL_vC qx_29L...

Страница 14: ...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 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 call Cobra Customer Service 773 889 3087 1 Connect properly installed and matched base station antenna Simply connect the red a...

Страница 15: ...ed 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 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 Assis...

Страница 16: ... on this channel 10 94 Give me a long count 10 99 Mission completed all units secure 10 200 Police needed at 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 transmi...

Страница 17: ...utput Power 4 watts Frequency Response 300 to 3000 Hz Distortion Less than 5 3 watts 1000 Hz Built in Speaker 8 ohms 5w External Speaker Not supplied 8 ohms disables internal speaker when connected 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 separate jack provided SPECIFICATION...

Страница 18: ...arranty 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 t...

Страница 19: ...nceling 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 Cobra dealer or in the U S A you can order directly from Cobra See ordering info on page 37 29LTDCHR_MANL_vC qx_29LTDDEJR_manual qx 6 17 14 2 59 PM Page 36 ...

Страница 20: ...er Service Representative can be reached at 773 889 3087 8 00 am 5 30 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 ...

Страница 21: ...eaker Jack 20 Antenna Connector 21 Power Jack 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 ...

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