Cobra 29 LX CHR LE User Manual

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How to Use Your Cobra 29 LX CHR LE

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 & Mounting/Connection ..................................................2

Antennas

CB Antenna & Marine Installation ...................................................6

Ignition Noise Interference....................................................................7

Operating Your 29 LX CHR LE

Turning On Your CB ..............................................................................8

Setting Channel Selector .................................................................... 9

Calibrate For SWR (Standing Wave Ratio) .................................... 10

To Receive ................................................................................................ 12

Selecting a Channel .............................................................................. 13

S-Meter ...................................................................................................... 13

To Transmit .............................................................................................. 14

Setting Dynamike® ...............................................................................15

Menu Mode .............................................................................................16

Setting the Clock ...................................................................................17

Setting the Alarm ..................................................................................17

Setting the Count Down Timer ........................................................ 18

Key Tones Mode ....................................................................................18

Radio Check Mode ................................................................................ 19

Setting Display Color Mode ...............................................................20

Setting Brightness Mode .................................................................... 21

Setting Contrast Mode ........................................................................21

Weather Information ............................................................................22

Weather Channels ................................................................................. 23

Weather Alert Mode ............................................................................. 24

Setting Weather Alert Scan................................................................ 24

Setting Weather Auto Scan ...............................................................24

Software version/Factory Settings .................................................. 25

NB-ANL/Off (Noise Blanker/Automatic.......................................... 26

Noise Limiter Switch)

RF Gain Control ......................................................................................26

Program Memory Channels ...............................................................27

Scan/Memory Scan ............................................................................... 27

Scan CB Channels .................................................................................. 28

Scan Memory Channels ......................................................................28

Dimmer Control ..................................................................................... 28

Setting Squelch ...................................................................................... 29

S/RF Meter ................................................................................................30

External Speaker .................................................................................... 31

PA (Public Address) ...............................................................................32

Home And Office Set-Up .................................................................... 34

Temporary Mobile Set-Up ..................................................................35

How Your CB Can Serve You ................................................................. 36

A Few Rules You Should Know ........................................................36

Channel 9 Emergency Messages .....................................................36

CB 10 Codes .............................................................................................38

Frequency Ranges ..................................................................................... 40

29 LX CHR LE Specifications ..................................................................41

Warranty Information ..............................................................................42

Optional Accessories ................................................................................ 43

Optional Accessories Order Info .........................................................44

If You Need Service/Trademark Info ................................Back Cover

Features of This Product

• Selectable 4-Color LCD Display

• 10 Weather Channels

• Weather Scan

• Emergency Weather Alert

• 40 CB Radio Channels

• 40 Channel Scan

• Memory Channels

• Channel Frequency Read-Out

• Radio Check Diagnostic

• Clock/Timer/Alarm

• Heavy-Duty Dynamic Microphone

• Full 4 Watts AM RF Power Output

• SWR Calibration Meter

• Instant Channel 19 and 9

• Front Panel 4-Pin Microphone Connector

• Switchable Automatic Noise Limiter & Noise Blanker

• Adjustable Dynamike Boost

• Tactile Controls

• 9 Ft Mic Cord

• Programmable Dimmer Control

• RF Gain

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 selftapping screws and star washers. The mounting must be mechanically strong, conveniently located.

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

Hold the radio with the mounting bracket in

the exact desired location. If there is no interference, remove the bracket and use it as a template to mark the location for the mounting screws.

Connect the antenna cable plug to the recep-

tacle marked “ANT” on the back of the unit.

Drill the holes and secure the bracket.

continued

Installation

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.

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.

Note

When connected to an accessory fuse, unit will self test the emergency weather alert automatically when ignition is turned on. Turns itself on & off.

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.

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.

Attach the 4-pin microphone cable to

receptacle on front of unit and install unit in bracket securely.

Installation

Note

If microphone is not connected, audio will not be heard at speaker.

Antennas

Ignition Noise Interference

CB Antenna

Note

For optimum performance in passenger cars the ideal antenna location is on the center of the roof. Second choice is on the center of the trunk.

Note

Because many newer trucks feature fiberglass door skins, the outside mirror must be grounded to the chassis via a ground strap, if the antenna is mounted on the mirror bracket.

Note

3-way Combination Antennas are also available which allow operation of all three bands (AM-FM & CB), using a single antenna. However, this type of antenna usually results in less than normal transmit and receive range when compared to a standard-type “Single Band” CB antenna. Call 773889-3087 for further information.

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 maximum power output. Cobra loaded type antenna models are highly recommended for most installations. For models with Weather Feature (WX),

a Dual Band (Center Load/Base Load) antenna is recommended. 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.

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 information regarding an adequate grounding system and prevention of electrolysis between fittings in the hull and water.

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. The unit requires very little current and therefore will not significantly discharge the vehicle’s battery.

Even though the Cobra 29 LX CHR LE has an automatic noise limiter, in some installations ignition interference may be high enough to make good communications impossible. Many possibilities exist and variations between vehicles require different solutions. Consult your Cobra dealer or a 2-way radio technician for help in locating the source of a severe noise.

Operation

Turning On

Make sure the power cord, antenna and microphone are connected to their proper connectors before starting.

Rotate the On/Off Volume knob clockwise to

turn unit on and adjust to a normal listening level.

CH 9/

SCAN

CB/ WX/

T BACK

DIM

ESC

SWR

CAL

MEM SCAN

MEMWX !

F GAIN DELTA TUNE

Setting Channel Selector

NB/ANL

SWR

ANL

S/RF

SWR

CAL

SWR/CAL

OFF MIN

Select one of forty channels and adjust

SIG

VOL SQ DYNAMIK

volume. The selected channel (1 through

40) will be indicated by the readout directly above the channel selector knob

1.5

CAL

TX RX

+30dB

MEMWX !

MIN

Setting Channel Selector

Note

Press CB/WX/PA to select CB,

F G

weather channels or PA (public address) modes.

Press the CB/PA/WX button to change modes.

Operation

NB/ANL

CH 9/

SCAN

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.

1.5

SWR

S/RF

SWR/CAL

OFF MIN

Select channel 20.

Press SWR/CAL button to select CAL.

SIG

VOL SQ DYNAMIKE

CAL

+30dB

PUSH & HOLD

Note

Calibration must be made in an open area (never in a garage). Vehicle doors must be closed.

Push and hold mic button.

While holding mic

F GAIN DELTA TUNE

MEM SCAN

CB/ WX/

T BACK

FFMAX

DIM

ESC

SWR

CAL

button adjust the SWR CAL knob so the meter swings to the CAL mark on the meter (located on the right).

No one should be standing near the antenna. (See your antenna directions for more complete information).

Note

The reading will be slightly higher on Channels 1 and 40 compared to Channel 20.

continued

1110

Operation

Calibrate for SWR continued

Note

When switched to SWR mode the meter reading 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 recalibration steps.

To Receive

NB/ANL

S/RF

SWR/CAL

Release the PTT button, press and release the

SWR

SIG

VOL SQ DYNAMIKE

OFF MIN

1.5

CAL

+30dB

S/RF-SWR CAL button to the SWR position. Then press the PTT button to read the SWR reading.

Repeat the same steps two through five on

Channel 1 and 40. This will check SWR for all channels.

To Receive

NB/ANL

ANL

S/RF

S/RF SWR

CAL

SWR/CAL

VOL SQ DYNAMIKE

SWR

SIG

1.5

CAL

+30dB

MEM

Selecting A Channel

DYNAMIK

+30dB

MEM

F GAIN DE

MIN

Selecting A Channel

Unit should be in CB mode. Rotate channel selector clockwide or counter-clockwise to

select desired channel.

S-Meter

Swings proportionately to strength of incoming signal when receiving.

1.5

SWR

S/RF

SIG

OL SQ DYNAMIKE

CAL

+30dB

OFF MIN

Rotate the On/Off Volume knob clockwise.

The RX icon will be displayed.

MIN

The S/RF-SWR-CAL switch must be in the S/RF

setting to read the meter.

Operation

NB/ANL

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.

To Transmit

Select desired channel.

Transmit

PUSH & HOLD

Setting Dynamike®

This controls the microphone sensitivity (outgoing audio level).

SWR

SIG

1.5

CAL

TX RX

+30dB

NB/ANL

ANL

S/RF

S/RF SWR

SWR/CAL

Initially, set fully clockwise so that maximum

CAL

VOL SQ DYNAMIKE

OFF MIN

voice volume is available. Dynamike may have to be reduced in some conditions.

Setting Dynamike

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.

Operation

ESC

MEM SCAN

CH 9/

CB/ WX/

DIM

SCAN

ESC

MEM SCAN

CH 9/

CB/ WX/

DIM

SCAN

ESC

MEM SCAN

CH 9/

CB/ WX/

DIM

SCAN

ESC

MEM SCAN

CH 9/

CB/ WX/

DIM

SCAN

ESC

MEM SCAN

CH 9/

CB/ WX/

DIM

SCAN

ESC

CH 9/

DIM

ESC

CH 9/

DIM

ESC

CH 9/

DIM

Operation

Menu Mode

Note

Use Dim/Escape button to exit from any routine back to CB standby mode.

Menu Mode

Used to program special features. Menu/Enter knob is used to move cursor to desired feature to program.

Rotate Menu/Enter knob clockwise to navigate menu levels.

Press Menu/Enter knob to select feature to be programmed.

Level 1: Level 2:

SET CLOCK ALARM CLOCK SET COUNT DOWN

Level 3: Level 4:

WX AUTO SCAN DISPLAY COLOR BRIGHTNESS

Level 5:

EXIT

KEY TONES WX ALERT WX ALERT SCAN

CONTRAST RADIO CHECK SETTINGS

Setting the Clock

Using the clock, alarm and countdown functions. To set the clock, press Menu/Enter knob and

select Set Clock.

SET CLOCK ALARM CLOCK SET COUNT DOWN

SCAN

MEM SCAN

CB/ WX/

12:00 PM will appear in the display and the hours will flash. Rotate Menu/Enter knob clockwise to select desired hour and press to set.

The minutes will then flash. Rotate Menu/Enter knob again to select desired minutes and press to set.

Once the minutes are set, AM or PM will then flash. Rotate Menu/Enter knob again to select AM or PM and press to set or scroll down to EXIT and press to return to main menu.

SET AM-PM 11:30 PM EXIT

SCAN

MEM SCAN

CB/ WX/

Setting the Alarm

Your 29 LX CHR LE can be utilized as an alarm clock. To set the alarm, press Menu/Enter knob and select Set Alarm.

SET CLOCK ALARM CLOCK SET COUNT DOWN

Rotate Menu/Enter knob clockwise to select Set Alarm Time. Follow instructions above for setting

the alarm time and AM or PM.

SCAN

MEM SCAN

CB/ WX/

Setting the Clock

Note

Normal display will appear if clock has not yet been set.

Note

Use Dim/Escape button to exit from any routine back to CB standby mode.

Note

The radio should be connected to a constant 12V to run the clock continuously.

Setting the Alarm

MEM SCAN

CH 9/

CB/ WX/

DIM

SCAN

MEM SCAN

CH 9/

CB/ WX/

DIM

SCAN

CH 9/

MEM SCAN

CH 9/

CB/ WX/

DIM

SCAN

MEM SCAN

CH 9/

CB/ WX/

DIM

SCAN

Operation

ESC

CH 9/

ESC

CH 9/

DIM

ESC

CH 9/

DIM

Operation

Setting the Alarm continued

Note

Default snooze time length is 10 minutes.

Note

Press Dim/Escape button to return to CB standby mode.

Note

Default alarm length is 60 seconds and is set in 10 second increments.

Setting the Count Down Timer

Note

Press Dim/Escape button to return to CB standby mode.

Key Tones Mode

Note

Press Dim/Escape button to return to CB mode.

Once alarm settings are complete, rotate Menu/Enter knob clockwise to Set Snooze and press to select.

EXIT SET SNOOZE ALARM LENGTH

SCAN

MEM SCAN

CB/ WX/

Enter desired snooze time (from 1 to 60 minutes). Select Enter to exit, return to Set Snooze or Alarm Length. Select Alarm Length to set alarm duration (from 10 to 300 seconds). Pressing Menu/Enter knob returns unit to exit, Set Snooze or Alarm Length.

Setting the Count Down Timer

To set the count down timer, press Menu/Enter knob and select Set Count Down.

SET CLOCK SET ALARM SET COUNT DOWN

SCAN

MEM SCAN

CB/ WX/

Follow instructions in Setting the Clock section (page 17) to set count down hour and minutes. Once desired count down time is selected, press Menu/Enter knob again to set and return to the standby menu.

Key Tones Mode On and Off

Press Menu/Enter knob and rotate clockwise to Set Key Tones. Press Menu/Enter to set Key Tones On/Off.

TX RX

SET KEY TONES ON OFF

Press Menu/Enter knob to select On/Off and exit to main menu.

SCAN

MEM SCAN

CB/ WX/

Radio Check Mode

Allows testing of important radio functions. Test 1- Battery Level: Confirms that battery

voltage level is between 10.8 V to 15.8 V. If in that range, it is “PASS”. Outside of that range, either FAIL LOW” or “FAIL HIGH” will be displayed. Press Menu/Enter knob to advance to next test.

Radio Check Mode

Note

Press Dim/Escape button to return to CB standby mode. If 10 seconds pass or if Enter button pressed, unit goes to 2nd test.

Note

Press Push-To-Talk within 10 seconds or unit will go to the

Test 2- RF Power Output: Confirms 3.3 to 4 Watt output level. Once Push-to-Talk button is pressed, Pass or Fail will be displayed if level is outside limits.

next test.

Note

Press Dim/Escape button to return to CB standby mode. If 10 seconds pass or if Enter button pressed, go to 3rd test.

RF POWER OUTPUT PASS

RF POWER OUTPUT FAIL

Note

Test 3- Antenna Mismatch Warning: Press Push-to-Talk button to check antenna/radio for

proper matching.

PRESS PTT TO CHECK

ANTENNA PASS

ANTENNA

ANTENNA FAIL

SCAN

MEM SCAN

CB/ WX/

Press Dim/Escape button to return to CB standby mode. If 10 seconds pass or if Enter button pressed, testing is

complete. Unit will return to CB Standby mode.

Operation

ESC

MEMWX !

CH 9/

ESC

CH 9/

DIM

Operation

Setting Display Color Mode

Note

Select EXIT to return to main menu. Press Dim/Escape button to return to CB mode.

Setting Display Color Mode

Press Menu/Enter knob and scroll down to select Display Color.

TX RX

WX AUTO SCAN DISPLAY COLOR BRIGHTNESS

MEM SCAN

CB/ WX/

Press and release Menu/Enter to set the color.

Rotating Menu/Enter knob clockwise changes the display color from green to blue to amber to red then back to green.

TX RX

Press Menu/Enter knob or escape button again to exit routine.

TURN CH KNOB TO SET COLOR EXIT

MEMWX !

MEM SCAN

SCAN

CB/ WX/

Setting Brightness Mode

Press Menu/Enter knob to select Set Brightness

Setting Brightness Mode

Note

If an attempt is made to exceed the highest or lowest

Rotate Menu/Enter knob clockwise to Select Brightness. Press Menu/Enter knob to select Day-Bright. Turn Menu/Enter clockwise to

increase brightness and turn counter-clockwise to decrease brightness.

To set the day bright level, turn the Menu/Enter knob clockwise to a desired setting and then press Menu/Enter. To set the Night-Dim level, repeat instructions above then select Night-Dim.

TURN CH KNOB TO SET LEVEL

Press Menu/Enter knob again to exit routine.

Setting Contrast Mode

Press Menu/Enter knob and rotate clockwise to select Set Contrast. Press Menu/Enter knob again and rotate clockwise to increase contrast, counter-clockwise to decrease contrast. Press Menu/Enter knob to set contrast.

TURN CH KNOB TO

SET CONTRAST

Press Menu/Enter knob again to exit routine.

brightness levels, 1 error beep will be heard.

Note

Exit will return to menu mode. ESC will exit and return to CB Standby.

Note

To select day or night levels, press and release Dim/Escape button once levels are set.

Note

To toggle from day to night settings, see page 28.

Setting Contrast Mode

Note

If an attempt is made to exceed the highest or lowest contrast levels, 1 error beep will be heard.

Weather Auto

Operation

Weather Information

Note

If you wish to receive a listing of NOAA ‘Weather Radio Transmitter locations, contact your nearest National Weather Service Office.

Service Office, or write to: National Weather Service (Attn: W/OM11) NOAA Silver Springs, MD 20910.

For ideal weather reception use a dual band antenna (center load/baseload).

Weather Alert

What You Should Know About Weather

If threatening weather is nearby, the National Weather Service may broadcast a 10 second alert tone. This tone will be heard through the CB, even if the CB/WX Control is in the CB mode or the unit is turned off.

This enables you to monitor CB frequencies and still be warned by the National Weather Service Emergency Alert. When you hear the alert, press the CB/WX/PA button in the WX mode. You will then be able to hear the Weather Warning Broadcast.

Your 29 LX has a special auto squelch circuit for weather transmission which disables your squelch control.

Weather Alert Scan

The unit will continually scan all 10 WX channels for 1050 Hz tone. If the tone is detected the unit will activate WX mode on the channel with the tone. Default state is Off. Go to Menu mode to choose On/Off (see page 22):

CH 9/

SCAN

CB/ WX/

T BACK

DIM

ESC

CAL

163.275

WX !

F GAIN DELTA TUNE

MEM SCAN

Weather Auto Scan

If active while in CB or PA mode, will determine if the present WX channel is active. If the present WX

channel is not active, will search for the strongest WX channel and auto change to that channel. Default is off. Go to Menu mode to choose on/off (see page 22).

Weather Channels

What is Weather Radio?

NOAA Weather Radio (NWR) is a service of the National Oceanic and Atmospheric Administration (NOAA), of the U.S. Department of Commerce. 380 NWR stations are in operation by the U.S. Government in addition to several NWR stations that are maintained by private interest groups. The capability is to supplement warnings by sirens and by commercial radio and television.

The 10 National Weather Channels provide full coverage to keep you informed of weather conditions, 24 hours a day, 7 days a week.

2322

Operation

ESC

CH 9/

ESC

CH 9/

ESC

CH 9/

ESC

CH 9/

ESC

CH 9/

Operation

Weather Alert Mode

Note

Press Dim/Escape button to return to CB mode.

Setting Weather Alert Scan

Note

If an alert is detected the unit will activate WX mode on the channel with the alert. Use Menu/Enter knob to select On/Off and press to set.

Note

Press Dim/Escape button to return to CB mode.

Setting Weather Auto Scan

Note

Press Dim/Escape button to return to CB mode.

Setting Weather Alert Mode

Turns WX Alert On/Off. Default is Off. Press Menu/Enter knob to select Set WX Alert. If Weather is On, WX Alert Icon will be displayed.

TX RX

WX ALERT IS OFF ON OFF

MEM

SCAN

MEM SCAN

CB/ WX/

Press Menu/Enter knob to select On/Off and exit to main menu.

Setting Weather Alert Scan

Press Menu/Enter knob and rotate clockwise to WX Alert Scan. Press Menu/Enter knob to select On/Off.

WX! SCN IS OFF ON OFF

MEM

SCAN

MEM SCAN

CB/ WX/

Press Menu/Enter knob to select On/Off and exit to main menu.

Setting Weather Auto Scan

Press Menu/Enter knob and rotate clockwise to WX Auto Scan. Press Menu/Enter knob to select On/Off.

AUTO SCN IS OFF ON OFF

MEM

SCAN

MEM SCAN

CB/ WX/

Software Version/Factory Settings

Displays current software version and returns unit to original factory settings. To view software version, rotate Menu/Enter knob clockwise to select Settings then Software Version.

TX RX

CONTRAST RADIO CHECK SETTINGS

TX RX

To restore default settings, Press Menu/Enter knob again. Rotate Menu/Enter knob clockwise to select Settings then Go To Default.

TX RX

SOFTWARE VER GO TO DEFAULT

RESTORE DEFAULT YES NO

Press Menu/Enter knob to restore default settings. Choose NO to maintain present setting with no change.

SCAN

MEM SCAN

CB/ WX/

SCAN

MEM SCAN

/WX /

SCAN

MEM SCAN

CB/ WX/

SCAN

MEM SCAN

CB/ WX/

Software Version/Factory Settings

Note

Default display color is green.

Press Menu/Enter knob to select On/Off and exit to main menu.

2524

Operation

SWR

ESC

MEM SCAN

MEMWX !

CH 9/

CB/ WX/

DIM

SCAN

CH 9/

Operation

NB-ANL/OFF (Noise Blanker / Automatic Noise Limiter) Button

Note

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

RF Gain Control

Note

The RF Gain is used to optimize reception in weak signal areas.

NB-ANL/OFF (Noise Blanker/Automatic Noise Limiter) Button

NB/ANL

SWR

ANL

S/RF

SWR/CAL

When switched to ANL the Automatic Noise

SIG

Limiter is activated. This helps reduce noise created by the vehicle’s electronics.

When switched to NB/ANL mode the RF Noise

Blanker is also activated, providing increased noise filtration.

When switched to OFF mode all noise

filtration will be turned off.

1.5

CAL

TX RX

+30dB

RF Gain Control

The RF Gain is used to optimize reception in strong or weak signal areas.

Program Memory Channels

Set first channel. Press and hold Scan/MemScan button. Memory icon will appear. Select second channel, press and hold Scan/MemScan button again until Memory icon appears. Repeat above steps to enter up to 10 channels in memory.

CH 9/

SCAN

MEM

F GAIN DELTA TUNE

MEMWX !

F GAIN DELTA TUNE

SCAN

MEM SCAN

CB/ WX/

T BACK

Pressing the Scan/Memory Scan button

toggles from Off to Scan All Channels to Memory Channel Only Scan and back to Off.

SCAN

MEM SCAN

CB/ WX/

MEMWX !

F GAIN DELTA TUNE

T BACK

MEM SCAN

CB/ WX/

T BACK

DIM

CAL

CH 9/

ESC

SWR

DIM

CAL

ESC

SWR

DIM

ESC

SWR

CAL

Program Memory Channels

Note

The radio should be squelched before scan features are activated.

Note

Keying the microphone will stop the scan feature.

Note

If more than 10 channels are attempted to be programmed, 3 error beeps will be heard and “Memory Full” will be displayed for 10 seconds or until any button is pushed.

Note

To remove a channel from memory, go to the unwanted memory channel then press and hold the scan button until the MEM icon turns off.

Note

If in WX mode the unit will scan Weather channels.

Rotate the RF Gain knob counterclockwise to

reduce gain in strong signal areas. In weak signal areas turn clockwise to increase gain.

Press Dim/Escape button to end Scan and

return to CB mode.

2726

Operation

NOISE

WEAK SIGNALS

MEDIUM SIGNALS

STRONG SIGNALS

GATE CLOSED

ESC

CH 9/

DIM

ESC

CH 9/

DIM

Operation

Scan CB Channels

Scan Memory Channels

Dimmer Control

Scan CB Channels

To scan all 40 CB channels, the unit must be squelched. Press and release Scan/Mem Scan button once.

CB SCAN

27.405

Scan Memory Channels

To scan memory channels, press and release Scan/Mem Scan button twice.

CB MEM SCAN

27.405

MEM

Dimmer Control

CH 9/

SCAN

CB/ WX/

DIM

ESC

MEM SCAN

MEMWX !

Press Dim/Esc button to toggle between day

and night settings.

See setting instructions on page 21.

SCAN

MEM SCAN

CB/ WX/

SCAN

MEM SCAN

CB/ WX/

Setting Squelch

Squelch is the “control gate” for incoming signals.

Full clockwise rotation closes the gate

allowing only very strong signals to enter.

Full counterclockwise rotation opens the “gate”

allowing all signals in.

Setting Squelch

Gate closed

Gate open

STRONG SIGNALS

MEDIUM SIGNALS

WEAK SIGNALS

NOISE

GATE

OPEN

Operation

Setting Squelch

Continued

Operation

Gate set to Desired Squelch Setting (DSS)

STRONG SIGNALS

MEDIUM SIGNALS

WEAK SIGNALS

NOISE

S/RF Meter

To achieve the Desired Squelch Setting (DSS),

turn the Squelch control counterclockwise until you hear noise. Now turn the control

GATE

clockwise just until the noise stops. This is the DSS setting.

S/RF Meter

This meter swings proportionately to the RF output (outgoing signal) while transmitting.

External Speaker

The external speaker jack is used for remote receiver monitoring.

Connect an external speaker to the external

speaker jack on the rear panel.

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. See accessory page 41.

Note

Cobra external speakers are rated at 10 watts.

The S/RF-SWR-CAL button must be in the

S/RF mode.

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. Adjust Volume Control to a normal listening level.

PA (Public Address)

Connect an external PA speaker to the PA jack

on the rear panel.

SCAN

MEM SCAN

CB/ WX/

F GAIN DELTA TUNE

T BACK

CH 9/

DIM

ESC

SWR

CAL

PUSH & HOLD

Push and hold microphone button and speak

in a normal voice. Your voice will now transmit on the PA speaker.

Press CB/WX/PA button to select PA.

Adjust PA speaker volume with the

Dynamike® control.

Home And Office Set-Up

Temporary Mobile Set-Up

Base Station Operation (From 120V AC House Current)

Warning!

Do not attempt to operate this transceiver by connecting it directly to 120V AC.

Note

For further information call Cobra Customer Service

1.773.889.3087.

Base Station Operation (From 120V AC House Current)

To operate your transceiver from home or office you will need a 13.2 volt DC Power Pack rated at a minimum of 2 amps, and a properly installed base station antenna.

+—

Simply connect the red (+) and black (-)

leads of the transceiver to the corresponding terminals of the power pack.

Plug power cable into back of unit marked

“Power”. Be sure to observe polarity markings.

Connect properly installed and matched base

station antenna.

Temporary Mobile Operation

For temporary mobile operation you may want to purchase an optional cigarette lighter adapter from your COBRA dealer. This adapter and a magnetic mount antenna allow you to quickly “install” your transceiver for temporary use.

Temporary Mobile Set-Up

3534

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

• 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. Conversations cannot last more than 5 minutes

with another station. A one minute break is required to let others use the channel.

B. You cannot blast others off the air by use of illegally amplified transmitters or illegally high antennas.

C. You cannot use CB to promote illegal activities. D. Profanity is not allowed. E. You may not transmit music with a CB. F. Selling of merchandise and/or services is

prohibited.

1. Set to channel 9 for emergencies

Be sure antenna is properly connected.

2. CB Distress Data

When transmitting an emergency, you should

request a “REACT BASE” and provide the CB distress data (called 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.

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.”

No “Post number 10. No tornado sighted.”

Yes “Out 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 thunderstorm warning. Bring sailboat into port.”

No “Attention motorists. Weather Bureau advises snow tomorrow will accumulate 4 to 6 inches.”

Yes “Fire in building at 539 Main, Evanston.”

No “Halloween patrol number 3. All quiet.”

3736

How Your CB Can Serve You

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 transmitting

10-4 OK, message received

10-5 Relay message

10-6 Busy, 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/roads 10-16 Make pick up at 10-17 Urgent business 10-18 Anything for us? 10-19 Return to base 10-20 My location is 10-21 Call by phone 10-22 Report in person to 10-23 Stand by 10-24 Completed last assignment 10-25 Can you contact 10-26 Disregard last info 10-27 Moving to channel 10-28 Identify your station

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 Message delivered

10-41 Turn to channel

10-42 Traffic accident at

10-43 Traffic tie up at

10-44 Have a message for

10-45 All 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/assignment

10-67 All units comply

10-70 Fire at

10-71 Proceed, transmission in sequence

10-77 Negative contact

10-81 Reserve hotel room for

10-82 Reserve room for

10-85 My address is

10-91 Talk closer to mic

10-93 Check my frequency on this channel

10-94 Give me a long count

10-99 Mission completed, all units secure

10-200 Police needed at

3938

Frequency Ranges

29 LX CHR LE Specifications

The Cobra 29 LX CHR LE transceiver represents one of the most ad vanced 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 cov er age of all 40 CB chan nels.

Channel Channel CB Freq. CB Freq. WX Freq. Channel In MHz Channel In MHz Channel In MHz

1 26.965 21 27.215 1 162.550 2 26.975 22 27.225 2 162.400 3 26.985 23 27.255 3 162.475 4 27.005 24 27.235 4 162.425 5 27.015 25 27.245 5 162.450 6 162.500 6 27.025 26 27.265 7 162.525 7 27.035 27 27.275 8 161.650 8 27.055 28 27.285 9 161.775 9 27.065 29 27.295 10 163.275 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

GENERAL

CHANNELS CB - 40 CH FREQUENCY RANGE CB - 26.965 TO 27.405 MHZ WX - 162.400 TO 162.775 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 13.2VDC nom. (positive or negative ground) Current Drain Transmit: AM full mod., 1.5A (maximum) Receive: Squelched, 0.3A; full audio output, 1.2A (nominal)

Size ..............................................................8-5/8” D x 7-9/32” W x 2-13/63” H

Weight ..........................................................4 lbs.

Antenna Connector .................................UHF; SO-239

Meter .............................................................Indicates relative

power output received signal strength, and vswr

TRANSMITTER

Power Output ............................................4 watts

Modulation .................................................AM (Amplitude Modulation)

Frequency Response ...............................300 to 3000 Hz

Output Impedance ..................................50 ohms, unbalanced

RECEIVER

Sensitivity ....................................................Less than 1 µV for 10 dB (S+N) /N

Selectivity ....................................................6 dB @ 7 KHz, 60 dB @ 10KHz

Image Rejection ........................................80 dB, typical

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 50,000 microvolts

RF Gain range ............................................40 db

Noise Blanker .............................................RF type

Squelch ........................................................Adjustable; threshold less than 1µV

Audio Output Power ...............................4 watts

Frequency Response ...............................300 to 3000 Hz

Distortion ....................................................Less than 7% @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 4 Watts min.

(Not Supplied) ...........................................the PA speaker also monitors the

receiver; separate jack provided

(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)

4140

Limited Two Year Warranty

COBRA ELECTRONICS CORPORATION warrants that its Cobra CB Radios, and the com po nent 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 war ran ty may be enforced by the first consumer pur chas er, pro vid ed that the product is utilized within the U.S.A.

Cobra will, without charge, repair or replace, at its option, de fec tive CB radios, products or com po nent parts upon de liv ery to the Cobra factory Service Department, ac compa nied by proof of the date of first consumer pur chase, such as a du pli cat ed copy of a sales receipt.

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.

Cobra Electronics Corporation

6500 West Cortland Street Chicago, Illinois 60707 www.cobra.com

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 38.

Replacement DC Power Cord

For in vehicle use 426-002-N-001

Replacement Mounting Bracket

For in vehicle use 251-353-9-001

Replacement Thumb Screws

For in vehicle use 634-081-9-001

Exclusions: This limited warranty does not apply; 1) to any product dam aged by accident; 2) in the event of misuse or abuse of the product or as a result of un au tho rized alterations or repairs; 3) if the serial number has been altered, defaced or re moved; 4) if the owner of the product resides outside the U.S.A.

All implied warranties, including war ran ties of mer chant abil i ty and fitness for a par tic u lar purpose are limited in duration to the length of this warranty. Cobra shall not be liable for any incidental, con se quential or oth er dam ag es; including, without lim i ta tion, damages re sult ing from loss of use or cost of in stal la tion.

Some states do not allow limitations on how long an implied warranty lasts and/or do not allow the ex clu sion or limitation of incidental or con se quen tial dam ag es, so the above lim i ta tions may not apply to you.

Replacement Microphone Bracket

For in vehicle use 741-080-9-001

Dynamic External Speaker

HG S100

21” Base Loaded Magnet Mount Antenna

HG A1000

Noise Canceling External Speaker

HG S300

38” Base Loaded Magnet Mount Antenna

HG A1500

Noise Canceling With Talk Back External Speaker

HG S500

4342

29 LX CHR LE

cb tranceiver

The CB Story

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 - 5:30 pm, Monday through Friday, Central Time.

Technical assistance is also available on-line in the Frequently Asked Questions (FAQ) section at

www.cobraelec.com or by e-mail to productinfo@cobra.com

If you think you need service call 1.773.889.3087

“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.

1. For Warranty Repair include some form of proof-of-purchase, such as a mechanical reproduction or carbon or a sales receipt. If you send 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 to be returned.

4. Pack unit securely to prevent damage in transit. If possible, use the original packing material.

5. Ship prepaid and insured by way of a traceable carrier such as United Parcel Service (UPS) or First Class Mail: to avoid loss in transit to: Cobra Factory Service, Cobra Electronics Corporation, 6500 W. Cortland St., Chicago, IL 60707.

6. If the unit is in warranty, upon receipt of your unit it will either be repaired or exchanged depending on the model. Please allow approximately 3 to 4 weeks before contacting us for status. If the unit is out of warranty a letter will automatically be sent informing you of the repair charge or replacement charge. If you have any questions, please call 1.773.889.3087 for assistance.

Trademark Info

Cobra®, Dynamike®, Nothing Comes Close to a Cobra® and the snake design are registered trademarks of Cobra Electronics Corporation, USA.

Cobra Electronics Corporation™ is a trademark of Cobra Electronics Corporation, USA.

Operating Instructions for your

Cobra 29 LX CHR LE

Limited Edition CB Radio

U.S. Patent Nos. D625279, D630202 & D630625

Part No. 480-716-P Version B

Nothing Comes Close to a Cobra®

NB/ANL

1.5

NB/ANL

CAL

SWR

ANL

S/RF

RF SWR CAL

SIG

SWR/CAL

+30dB

VOL SQ DYNAMIKERF GAIN DELTA TUNE

OFF MIN

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

TX RX

MEMWX !

SCAN

MEM SCAN

CB/WX/

T BACK

FFMAX

1959. (CB also includes a Class A citizens band and Class C remote control frequencies.)

CH 9/ 19

FCC Regulations

DIM

ESC

FCC regulations permit only “transmissions”

SWR CAL

(one party to another) rather than “broadcasts” (to a wide audience). Thus, advertising is not allowed on CB Channels because that is “broadcasting.”

FCC Warnings

All transmitter adjustments other than those supplied by the manufacturer as front panel operating controls, must be made by, or under the supervision 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 recommended by Cobra, may cause violation of the technical regulations of Part 95 of the FCC Rules, or violation of Type Acceptance requirements of Part 2 of the Rules.

You should read and understand Part 95 (included with this unit) of the FCC Rules and Regulations, before operating your Cobra radio, even though the FCC no longer requires you to obtain an operator’s license.

What’s Included with Your 29 LX CHR LE

1. CB transceiver 5. Operating Manual

2. Microphone 6. DC power cord 3 Transceiver bracket 7. FCC rules (not shown)

4. Microphone bracket 8. Certificate of Authenticity

(not shown)

Controls and Indicators

Assistance

Warranty

Customer Assistance

Front Side

1. 4-Pin Microphone

Connector

2. Power On/Off, Volume

3. Squelch

4. Dynamike

5. Menu/Enter/Channel

Selector

6. RF Gain

7. Delta Tune

8. Talk Back Control

9. SWR Calibration

10. Dim/Escape Button

11. Channel 9/Channel 19

Button

12. Scan/Memory Scan

13. CB/WX Weather/PA Button

14. LCD Display

15. RX (Receive)/TX (Transmit),

Indicators

16. Signal Strength Meter

17. NB/ANL Button

18. S/RF SWR CAL Button

19. 1Microphone

Back Side

20. Public Address Speaker

Jack

21. External Speaker Jack

22 Antenna Connector

23. Power Jack

NB/ANL

S/RF

SWR/CAL

OFF MIN

1.5

NB/ANL

SWR

ANL

S/RF

RF SWR CAL

SIG

VOL SQ DYNAMIKERF GAIN DELTA TUNE

+30dB

FCC ID:BBO3K229LTD

COBRA

MADE IN CHINA

Our Thanks to You

Thank you for purchasing the Cobra 29 LX CHR 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. 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 - 5:30 pm Central Time at: 773-889-3087

Automated Technical Assistance available 24 hours a day, seven days a week. E-mail questions to: productinfo@

Optional Accessories

Ordering From U.S.A.

Call 773-889-3087 for pricing or visit www.cobra.com.

For Credit Card Orders Call 773-889-3087 [Press one from the main menu] 8:00 a.m. to 5:30 p.m. Central Time, Monday through Friday.

Make Check or Money Order Payable To Cobra Electronics, Attn: Accessories Dept., 6500 West Cortland Street, Chicago, IL 60707 U.S.A.

To Order Online Please visit our website: www.cobra.com

cobra.com

CAL

TX RX

MEMWX !

MAX

MINOFF

CH 9/

SCAN

MEM SCAN

DIM

CB/WX/

T BACK

ESC

SWR

CAL

ANT

PA.SP. EXT.SP.

+ POWER–

NOTE

This device complies with part 15 of the FCC Rules. Operation is subject to the following two (2) conditions:

1. This device may not cause harmful interference, and

2. This device must accept any interference received, including interference that may cause undesired operation.

The manufacturer is not responsible for any radio or tv interference caused by unauthorized modifications to this equipment. Such modifications could void the user’s authority to operate the equipment.

Cobra on the World Wide Web: Frequently Asked Questions (FAQ) can be found on-line at: www.cobra.com

Cobra 29 LX CHR LE User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual