Cobra 29 LX LE User manual

Our Thanks, The CB Story and Customer Assistance .........................................................................................................A1
29 LX Features and FCC Regulations............................................................................................................................A2
Installation
Location .........................................................................................................................................................................2
Mounting and Connection...............................................................................................................................................2
CB Antenna ....................................................................................................................................................................4
Operation
Turning On......................................................................................................................................................................5
Setting Channel Selector ................................................................................................................................................5
Calibrate for SWR (Standing Wave Ratio) ........................................................................................................................6
To Receive......................................................................................................................................................................7
Selecting a Channel........................................................................................................................................................7
S-Meter..........................................................................................................................................................................7
To Transmit.....................................................................................................................................................................8
Setting Dynamike®.........................................................................................................................................................8
Menu Mode ....................................................................................................................................................................9
Setting the Clock..........................................................................................................................................................10
Setting the Alarm..........................................................................................................................................................10
Setting the Count Down Timer......................................................................................................................................11
Key Tones Mode ...........................................................................................................................................................11
Radio Check Mode .......................................................................................................................................................12
Setting Display Color Mode...........................................................................................................................................13
Setting Brightness Mode ..............................................................................................................................................14
Setting Contrast Mode..................................................................................................................................................14
Weather Information........................................................................................................................................................15
What You Should Know About Weather .........................................................................................................................15
Weather Channels ........................................................................................................................................................15
Weather Auto Scan .......................................................................................................................................................16
Setting Weather Auto Scan ...........................................................................................................................................16
Setting Weather Alert Mode ..........................................................................................................................................16
Setting Weather Alert Scan ...........................................................................................................................................16
Software Version/Factory Settings ................................................................................................................................17
NB-ANL/Off (Noise Blanker/Automatic Noise Limiter) Button.........................................................................................17
RF Gain Control ............................................................................................................................................................17
Program Memory Channels ..........................................................................................................................................18
Scan CB Channels........................................................................................................................................................19
Scan Memory Channels................................................................................................................................................19
Dimmer Control ............................................................................................................................................................19
Setting Squelch ............................................................................................................................................................19
S/RF Meter ...................................................................................................................................................................20
External Speaker ..........................................................................................................................................................20
PA (Public Address).......................................................................................................................................................20
Base Station Operation (From 120V House Current)......................................................................................................22
Temporary Mobile Operation.........................................................................................................................................22
How Your CB Can Serve You ...........................................................................................................................................23
A Few Rules You Should Know......................................................................................................................................23
Set Channel 9 For Emergencies....................................................................................................................................23
CB Distress Data ..........................................................................................................................................................23
CB 10-Codes................................................................................................................................................................25
Frequency Ranges ........................................................................................................................................................26
29 LX Specifications.....................................................................................................................................................27
Limited 2-Year Warranty ...............................................................................................................................................28
Need Help?...................................................................................................................................................................29
FCC Statement .............................................................................................................................................................30
1
Contents
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4. Connect the red lead of the DC power
cord to an accessory 12 volt fuse or
directly to the battery.
NOTE: The transceiver is held in the univer-
sal mounting bracket by two thumbscrews
which allow for adjustment to a conve-
nient angle. The bracket includes two
self-tapping screws and star washers. The
mounting must be mechanically strong and
conveniently located.
5. Connect the black lead to the negative
side of the vehicle electrical system. This
is usually the chassis.
Any convenient location with a good electri-
cal contact (remove paint) may be used.
NOTE: Before installing the CB radio, visually check the vehicle’s battery connection to
determine which terminal is positive or negative. A negatively grounded vehicle has its
negative lead grounded to the chassis.
6. Plug power cable into back of unit
marked “Power”. Be sure to observe
polarity markings.
7. The microphone can be mounted to
either side of the CB using the supplied
screws. Alternatively the microphone
can be mounted to the dash or any
convenient location.
8. Attach the microphone to the front of
the CB.
NOTE: If the microphone is not connected,
audio will not be heard at the speaker.
Installation
Installation
3
2
Location
Plan for the location of the CB 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.
NOTE: The transceiver is held in the universal mounting bracket by two thumbscrews
which allow for adjustment to a convenient angle.
The bracket includes two self-tapping screws and star washers. The mounting must be
mechanically strong and conveniently located.
Mounting and Connection
1. 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.
2. Drill the holes and secure the bracket.
3. Connect the antenna cable plug to the
receptacle marked “ANT” on the back
of the unit.
29LX_MANL_TH_REV_082222.indd 2-329LX_MANL_TH_REV_082222.indd 2-3 8/26/22 2:37 PM8/26/22 2:37 PM

5
4
Operation
Antennas
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. Consult your Cobra dealer for further details, or call
800-543-1608 and speak to a Cobra representative. A standard antenna connector is
provided on the transceiver for easy connection.
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. Because many newer trucks
feature fiberglass door skins, the outside mirror must be grounded to the chassis via a
ground strap when the antenna is mounted on the mirror bracket.
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.
Cobra offers CB antenna and mounting solutions that can be purchased online.
Please visit www.cobra.com, or if you’d like to speak with an expert, please call
800-543-1608 and our Customer Care Group can assist.
Turning On
Make sure the power cord, antenna and microphone are connected to their proper con-
nectors before starting.
2. Rotate the On/Off Volume knob clock-
wise to turn unit on and adjust to a
normal listening level.
3. Press the CB/PA/WX button to change
modes.
Setting Channel Selector
Select one of forty channels and adjust
volume. The selected channel (1 through
40) will be indicated by the readout directly
above the channel selector knob
SWR/CAL
NB/ANL
VOL SQ DYNAMIKER
F GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX / DIM
SCAN
PA
SWR/CAL
NB/ANL
VOL SQ DYNAMIK
ER
F
GA
OFF MIN MIN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
29LX_MANL_TH_REV_082222.indd 4-529LX_MANL_TH_REV_082222.indd 4-5 8/26/22 2:37 PM8/26/22 2:37 PM

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.
PUSH &
HOLD
1. Select channel 20.
2. Press SWR/CAL button to select CAL.
3. Push and hold the mic button.
4. While holding mic button adjust the
SWR CAL knob so the meter swings to
the CAL mark on the meter (located on
the right).
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE
OFF MIN
M
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
RX
ME
M
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE
T BACK SWR
CAL
OFF MIN MINO
FF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX /
DIM
SCAN
PA
7
6
Operation Operation
Calibrate for SWR continued
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE
OFF MIN
M
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
RX
ME
M
SWR
5. Release the PTT button, press and
release the S/RF-SWR CAL button to the
SWR position. Then press the PTT button
to read the SWR reading.
6. Repeat the same steps two through five
on Channel 1 and 40. This will check
SWR for all channels.
To Receive
Rotate the On/Off Volume knob clockwise.
The RX icon will be displayed.
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.
The S/RF-SWR-CAL switch must be in the
S/RF setting to read the meter.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE
OFF MIN MIN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
RX
NB/ANL
MEM
W
ANL
S/RF
SWR
CAL
DYNAMIK
ER
F GAIN DE
L
MIN MI
NM
AX
M
E
N
U
P
U
S
H
E
N
T
E
R
S
IG
F
+30dB
13579
RX
MEM
V
OL SQ DYNAMIKE
M
E
N
U
P
U
S
H
E
N
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
RX
S/RF
29LX_MANL_TH_REV_082222.indd 6-729LX_MANL_TH_REV_082222.indd 6-7 8/26/22 2:37 PM8/26/22 2:37 PM

9
8
Operation Operation
To Transmit
1. Select the desire channel.
2. 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.
NOTE: 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.
Setting Dynamike®
Initially, set fully clockwise so that maximum
voice volume is available. Dynamike may
have to be reduced in some conditions.
PUSH &
HOLD
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE
OFF MIN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
M
ANL
S/RF
SWR
CAL
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX /
DIM
SCAN
PA
EXIT
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX /
DIM
SCAN
PA
SET CLOCK
ALARM CLOCK
SET COUNT DOWN
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX /
DIM
SCAN
PA
KEY TONES
WX ALERT
WX ALERT SCAN
Level 1: Level 2:
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX /
DIM
SCAN
PA
WX AUTO SCAN
DISPLAY COLOR
BRIGHTNESS
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX /
DIM
SCAN
PA
CONTRAST
RADIO CHECK
SETTINGS
Level 3: Level 4:
Level 5:
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.
NOTE: Use Dim/Escape button to exit from
any routine back to CB standby mode.
29LX_MANL_TH_REV_082222.indd 8-929LX_MANL_TH_REV_082222.indd 8-9 8/26/22 2:37 PM8/26/22 2:37 PM

SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/ WX/
DIM
SCAN
PA
SET CLOCK
ALARM CLOCK
SET COUNT DOWN
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/ WX/
DIM
SCAN
PA
SET AM-PM
11:30 PM
EXIT
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/ WX/
DIM
SCAN
PA
SET CLOCK
ALARM CLOCK
SET COUNT DOWN
11
Operation Operation
10
Setting the Clock
Using the clock, alarm and countdown
functions.
To set the clock, press Menu/Enter knob and
select Set Clock.
NOTE: Normal display will appear if clock has
not yet been set.
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.
NOTE: Use Dim/Escape button to exit from
any routine back to CB standby mode.
Setting the Alarm
Your 29 LX can be utilized as an alarm clock.
To set the alarm, press Menu/Enter knob and
select Set Alarm.
Rotate Menu/Enter knob clockwise to select
Set Alarm Time. Follow instructions above for
setting the alarm time and AM or PM.
NOTE: The clock should be connected to
constant 12V to run continuously.
Once alarm settings are complete, rotate
Menu/Enter knob clockwise to Set Snooze
and press to select.
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.
To set the clock, press Menu/Enter knob and
select Set Clock.
NOTE: Default snooze time length
is 10 minutes.
NOTE: Use Dim/Escape button to exit from
any routine back to CB standby mode.
NOTE: Default alarm length is 60 seconds
and is set in 10 second increments.
Setting the Count Down Timer
To set the count down timer, press Menu/
Enter knob and select Set Count Down.
Follow instructions in Setting the Clock
section (page 10) 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.
NOTE: The clock should be connected to
constant 12V to run continuously.
Key Tones Mode
Press Menu/Enter knob and rotate clockwise
to Set Key Tones. Press Menu/Enter to set
Key Tones On/Off.Press Menu/Enter knob to
select On/Off and exit to main menu.
NOTE: Use Dim/Escape button to exit from
any routine back to CB standby mode.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/ WX/
DIM
SCAN
PA
EXIT
SET SNOOZE
ALARM LENGTH
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/ WX/
DIM
SCAN
PA
SET CLOCK
SET ALARM
SET COUNT DOWN
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX / D
IM
SCAN
PA
SET KEY TONES
ON
OFF
29LX_MANL_TH_REV_082222.indd 10-1129LX_MANL_TH_REV_082222.indd 10-11 8/26/22 2:37 PM8/26/22 2:37 PM

SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX/
DIM
SCAN
PA
RF POWER OUTPUT
PASS
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX/ DIM
SCAN
PA
RF POWER OUTPUT
FAIL
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX /
D
IM
SCAN
PA
PRESS PTT
TO CHECK
ANTENNA
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX/
DIM
SCAN
PA
ANTENNA
PASS
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX/ DIM
SCAN
PA
ANTENNA
FAIL
13
Operation Operation
12
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.
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.
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.
NOTE: Press Push-To-Talk within 10 seconds
or unit will go to the next test. Press Dim/
Escape button to return to CB standby mode.
If 10 seconds pass or if Enter button pressed,
go to 3rd test.
Test 3 - Antenna Mismatch Warning: Press
Push-to-Talk button to check antenna/radio
for proper matching.
NOTE: 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.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX /
D
IM
SCAN
PA
WX AUTO SCAN
DISPLAY COLOR
BRIGHTNESS
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX /
DIM
SCAN
PA
SET COLOR
EXIT
TURN CH KNOB TO
Setting Color Display Mode
1. Press Menu/Enter knob and scroll down
to select Display Color.
2. Press and release Menu/Enter to set
the color.
3. Rotating Menu/Enter knob clockwise
changes the display color from green to
blue to amber to red then back to green.
4. Press Menu/Enter knob or escape button
again to exit routine.
NOTE: Select EXIT to return to main menu.
Press Dim/Escape button to return to CB
mode.
29LX_MANL_TH_REV_082222.indd 12-1329LX_MANL_TH_REV_082222.indd 12-13 8/26/22 2:37 PM8/26/22 2:37 PM

TURN CH KNOB TO
SET LEVEL
TURN CH KNOB TO
SET CONTRAST
15
Operation Operation
14
Setting Brightness Mode
1. Press Menu/Enter knob to select Set
Brightness
2. 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.
NOTE: If an attempt is made to exceed the
highest or lowest brightness levels, 1 error
beep will be heard.
Exit will return to menu mode. ESC will exit
and return to CB Standby.
1. 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.
2. Press Menu/Enter knob again to exit
routine.
NOTE: To select day or night levels, press
and release Dim/Escape button once levels
are set.
Setting Contrast Mode
1. 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.
2. Press Menu/Enter knob to set contrast.
NOTE: If an attempt is made to exceed the
highest or lowest contrast levels, 1 error
beep will be heard.
Weather Information
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.
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 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.
29LX_MANL_TH_REV_082222.indd 14-1529LX_MANL_TH_REV_082222.indd 14-15 8/26/22 2:37 PM8/26/22 2:37 PM

17
Operation Operation
16
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 9).
Setting Weather Auto Scan
1. Press Menu/Enter knob and rotate
clockwise to WX Auto Scan. Press Menu/
Enter knob to select On/Off.
2. Press Menu/Enter knob to select On/Off
and exit to main menu.
Setting Weather Alert Mode
1. 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.
2. Press Menu/Enter knob to select On/Off
and exit to main menu.
Setting Weather Alert Scan
1. Press Menu/Enter knob and rotate
clockwise to WX Alert Scan. Press Menu/
Enter knob to select On/Off.
2. Press Menu/Enter knob to select On/Off
and exit to main menu.
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.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKER
F GAIN DELTA TUNE T BACK SW
R
CA
L
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
WX !
S/RF
CH 9/
19
CB/WX /
DIM
SCAN
PA
163.275
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
TX
RX
NB/ANL
MEM
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX / D
IM
SCAN
PA
ON
OFF
AUTO SCN IS OFF
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
TX
RX
NB/ANL
MEM
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX / D
IM
SCAN
PA
WX ALERT IS OFF
ON
OFF
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
TX
RX
NB/ANL
MEM
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX / D
IM
SCAN
PA
WX! SCN IS OFF
ON
OFF
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX /
D
IM
SCAN
PA
SOFTWARE VER
GO TO DEFAULT
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX /
D
IM
SCAN
PA
RESTORE DEFAULT
YES
NO
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.
1. To restore default settings, Press Menu/
Enter knob again. Rotate Menu/Enter
knob clockwise to select Settings then
Go To Default.
2. Press Menu/Enter knob to restore default
settings. Choose NO to maintain present
setting with no change.
NOTE: Default display color is green.
NB-ANL/OFF (Noise Blanker/
Automatic Noise Limiter) Button
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 mode the RF
Noise Blanker is also activated, providing
increased noise filtration.
When switched to OFF mode all noise
filtration will be turned off.
NOTE: The RF noise blanker is very effective
in reducing repetitive noises such as ignition
interference.
RF Gain Control
The RF Gain is used to optimize reception in
strong or weak signal areas.
Rotate the RF Gain knob counterclockwise
to reduce gain in strong signal areas. In weak
signal areas turn clockwise to increase gain.
NOTE: The RF Gain is used to optimize
reception in weak signal areas.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX /
D
IM
SCAN
PA
CONTRAST
RADIO CHECK
SETTINGS
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB
/WX/
D
IM
SCAN
PA
SOFTWARE VER
GO TO DEFAULT
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
CH 9/
19
CB/WX / DIM
SCAN
PA
29LX_MANL_TH_REV_082222.indd 16-1729LX_MANL_TH_REV_082222.indd 16-17 8/26/22 2:37 PM8/26/22 2:37 PM

SWR/CAL
NB/ANL
VOL SQ DYNAMIKER
F GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX/
DIM
SCAN
PA
SWR/CAL
NB/ANL
VOL SQ DYNAMIKER
F GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX / DIM
SCAN
PA
SWR/CAL
NB/ANL
VOL SQ DYNAMIKER
F GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
TX
RX
NB/ANL
MEM
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX/
DIM
SCAN
PA
19
Operation Operation
18
Program Memory Channels
1. 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.
NOTE: The radio should be squelched before
scan features are activated.
NOTE: Keying the microphone will stop the
scan feature.
2. Pressing the Scan/Memory Scan button
toggles from Off to Scan All Channels to
Memory Channel Only Scan and back
to Off.
3. Press Dim/Escape button to end Scan
and return to CB mode.
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.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKER
F GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEMWX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX/ DIM
SCAN
PA
Scan CB Channels
To scan all 40 CB channels, the unit must
be squelched. Press and release Scan/Mem
Scan button once.
Scan Memory Channels
To scan memory channels, press and release
Scan/Mem Scan button twice.
Dimmer Control
Press Dim/Esc button to toggle between day
and night settings.
See setting instructions on page 14.
Setting Squelch
Squelch is the “control gate” for incoming
signals.
1. Full clockwise rotation closes the gate
allowing only very strong signals to enter.
2. Full counterclockwise rotation opens the
“gate” allowing all signals in.
3. To achieve the Desired 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.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX /
DIM
SCAN
PA
CB SCAN
27.405
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX /
DIM
SCAN
PA
CB MEM SCAN
27.405
29LX_MANL_TH_REV_082222.indd 18-1929LX_MANL_TH_REV_082222.indd 18-19 8/26/22 2:37 PM8/26/22 2:37 PM

21
Operation Operation
20
S/RF Meter
This meter swings proportionately to the RF
output (outgoing signal) while transmitting.
The S/RF-SWR-CAL button must be in the
S/RF mode.
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.
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 X.
NOTE: Cobra external speakers are rated at
10 watts.
PA (Public Address)
1. Connect an external PA speaker to the PA
jack on the rear panel.
2. Press CB/WX/PA button to select PA.
NOTE: The 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.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MINOFF
MAX
ESC
MEM SCAN
S/RF
M
E
N
U
P
U
S
H
E
N
T
E
R
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
NB/ANL
ANL
S/RF
CH 9/
19
CB/WX / DIM
SCAN
PA
PUSH &
HOLD
3. Push and hold microphone button and
speak in a normal voice. Your voice will
now transmit on the PA speaker.
4. Adjust PA speaker volume with the
Dynamike®control.
29LX_MANL_TH_REV_082222.indd 20-2129LX_MANL_TH_REV_082222.indd 20-21 8/26/22 2:37 PM8/26/22 2:37 PM

+—
23
Operation How Your CB Can Serve You
22
Base Station Operation
(From 120V AC House Current)
To operate the 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
120VAC.
1. Simply connect the red (+) and black (-)
leads of the transceiver to the
corresponding terminals of the power
pack.
2. Plug the power cable into the back of
the unit marked “Power”. Be sure to
observe polarity markings.
3. Connect a properly installed and
matched base station antenna.
Temporary Mobile Operation
For temporary mobile operation you may
want to purchase an optional automobile
power adapter from your Cobra dealer. This
adapter and a magnetic mount antenna allow
you to quickly “install” your transceiver for
temporary use.
Your CB Radio Can:
•
• Provide weather and road data
• Provide help in event of an emergency
•
• Assist police by reporting erratic drivers
•
• 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.
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.
Set Channel 9 For Emergencies
Be sure antenna is properly connected.
CB Distress Data
When transmitting an emergency, you should request a “REACT BASE” and provide the CB
distress data (called CLIP):
Call Sign Identify yourself.
Location Be exact.
In juries Number. Type. Trapped?
Problem Give details and help needed.
Transmit CLIP repeatedly so any monitor can assist.
NOTE:
If no response on channel 9, try channels 19 or 14.
29LX_MANL_TH_REV_082222.indd 22-2329LX_MANL_TH_REV_082222.indd 22-23 8/26/22 2:37 PM8/26/22 2:37 PM

25
CB 10-Codes
24
How Your CB Can Serve You
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
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.”
The FCC gives these examples of permitted and prohibited messages for channel 9.
These are only guidelines and not all-inclusive:
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
10-29 Time is up for contact
10-30 Does not conform to FCC rules
10-33
10-34 Trouble at this station
10-35
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
10-43
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
Citizen Bands have adopted the “10-CODES” for standard questions and answers.
These codes provide quick and easy communication,especially in noisy areas.
The following are some of the more common codes and meanings:
Code M eaning Code M eaning
29LX_MANL_TH_REV_082222.indd 24-2529LX_MANL_TH_REV_082222.indd 24-25 8/26/22 2:37 PM8/26/22 2:37 PM

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)
29 LX Specifications
Frequency Ranges
2726
Frequency Ranges
CB Channel Channel Freq. In MHz CB Channel Channel Freq. In MHz
1 26.965
2 26.975
3 26.985
4 27.005
5 27.015
6 27.025
7 27.035
8 27.055
9 27.065
10 27.075
11 27.085
12 27.105
13 27.115
14 27.125
15 27.135
16 27.155
17 27.165
18 27.175
19 27.185
20 27.205
21 27.215
22 27.225
23 27.255
24 27.235
25 27.245
26 27.265
27 27.275
28 27.285
29 27.295
30 27.305
31 27.315
32 27.325
33 27.335
34 27.345
35 27.355
36 27.365
37 27.375
38 27.385
39 27.395
40 27.405
The Cobra 29 LX transceiver represents some of the most advanced AM/FM two-way
radios used as a Class D station in the Citizens Band Radio Service. These units feature
advanced Phase Lock Loop (PLL) circuitry providing complete cov er age of all 40
CB channels.
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Maximum antenna gain 0dbi

Need Help?Limited 2-Year Warranty
2928
Warranty Terms:
Cobra warrants your product against all defects in materials and workmanship for a period of two
(2) years from the date of original purchase.
Cobra, at our sole discretion, will repair or replace your product (with the same or comparable
product) free of charge.
Cobra will not pay shipping charges that you incur for sending your product to us. Products
received COD will be refused.
To make a warranty claim, we will require proof or purchase in the form of an invoice or receipt.
No proof of purchase is required for factory direct purchases.
Warranty Exclusions: Warranty does not apply to your product under any of the following
conditions: 1. The serial number has been removed or modified. 2. Your product has been
subjected to misuse or damage (including water damage, physical abuse, and/or improper
installation). 3. Your product has been modified in any way. 4. Your receipt or proof-of-purchase
is from a non-authorized dealer or internet auction site including E-bay, U-bid, or other nonauthor-
ized resellers.
LIMITATION OF WARRANTY: EXCEPT AS EXPRESSLY PROVIDED HEREIN, YOU ARE ACQUIRING
THE PRODUCT “AS IS” AND “WHERE IS”, WITHOUT REPRESENTATION OR WARRANTY. COBRA
SPECIFICALLY DISCLAIMS ANY REPRESENTATION OR WARRANTY INCLUDING, BUT NOT
LIMITED TO THOSE CONCERNING THE MERCHANTABILITY AND SUITABILITY OF THE PRODUCT
FOR A PARTICULAR PURPOSE. COBRA SHALL NOT BE LIABLE FOR CONSEQUENTIAL, SPECIAL
OR INCIDENTAL DAMAGES INCLUDING, WITHOUT LIMITATION, DAMAGES ARISING OUT OF THE
USE, MISUSE OR MOUNTING OF THE PRODUCT.
The above limitations or exclusions shall be limited to the extent they violate the laws of any
particular state. Cobra is not responsible for products lost in shipment between the owner and our
service center.
General Warranty Information
Each product we manufacture is covered by our factory warranty. While each product may have
unique components and policy, the general guideline below will apply to most Cobra products.
All Cobra products purchased factory-direct or from our Authorized Resellers will come with a full
one to three (1-3) year warranty from the date of the original retail purchase (see policy statement
above for full warranty details and exclusions).
Standard accessories packaged with each model will have a one-year factory warranty.
Accessory items have a one-year factory warranty.
Shipping to our facility is not covered in our warranty. Return shipping is included within the US.
This warranty is non-transferrable.
For the sake of clarity, ‘repair or replace the Product or its defective part’ does not include removal
or installation work, costs or expenses which include but are not limited to labor costs or expenses.
Cobra will not be responsible for lost packages.
If you have any questions about operation or installing your new Cobra product, PLEASE
CONTACT COBRA FIRST…do not return this product to any retail store.
The contact information for Cobra will vary depending on the country in which you
purchased and utilize the product. For the latest contact information, please go to www.
cobra.com/support
For products purchased in the U.S.A. you may call 800-543-1608.
For products purchased in the U.S.A., if your product should require factory service,
please please go to www.cobra.com/support and follow the instructions for returning
your product to the Cobra Factory Service Department for service.
Should there be any problems with this product or further information is needed
on its features please visit www.cobra.com for support, frequently asked questions,
Declarations of Conformity, and full manuals.
For Products Purchased Outside the U.S.A. or Canada
Please contact your local dealer for product service information.
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FCC Statement
3130
FCC Statement
FCC Part 15.19 Warning Statement
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING
TWO 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.
FCC Part 15.21 Warning Statement-
NOTE: THE GRANTEE IS NOT RESPONSIBLE FOR ANY CHANGES OR MODIFICATIONS NOT EXPRESSLY
APPROVED BY THE PARTY RESPONSIBLE FOR COMPLIANCE. SUCH MODIFICATIONS COULD VOID THE USER’S
AUTHORITY TO OPERATE THE EQUIPMENT.
FCC Part 15.105(b) Warning Statement
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
- Consult the dealer or an experienced radio/TV technician for help.
IC RSS-GEN, Sec 8.4 Warning Statement
ENGLISH: This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to
the following two conditions: (1) this device may not cause interference, and (2) this device must accept any
interference, including interference that may cause undesired operation of the device.
FRENCH: Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio
exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) l’appareil ne doit pas
produire de brouillage, et (2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même
si le brouillage est susceptible d’en compromettre le fonctionnement.
IC RSS-GEN, Sec 8.3 Warning Statement
Immediately following the above notice, the manufacturer shall provide a list of all antenna types approved for
use with the transmitter, indicating the maximum permissible antenna gain (in dBi) and required impedance
for each.
RF Exposure Statement
ENGLISH: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance 36.43cm between the
radiator & your body.
The device is in compliance with RF exposure guidelines, users can obtain Canadian information on RF
exposure and compliance. The minimum distance from body to use the device is 36.43cm.
FRENCH: Cet équipement est conforme aux limites d’exposition aux rayonnements de la FCC établies pour un
environnement non contrôlé. Cet équipement doit être installé et utilisé avec une distance minimale de 36.43 cm
entre le radiateur et votre corps.
Après examen de ce matériel aux conformité ou aux limites d’intensité de champ RF, les utilisateurs peuvent
sur l’exposition aux radiofréquences et compliance d’acquérir les informationscorrespondantes. La distance
minimale du corps à utiliser le dispositif est de 36.43cm.
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NOTES
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Our Thanks, The CB Story
and Customer Assistance
29 LX
Professional CB Radio
4W / 40 Channels / 4-Color LCD Display
For more information or to order any of our products,
please visit our website: www.cobra.com
©2022 Cobra Electronics Corporation
Pat. www.cobra.com/patent 814-ML8501-001
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.
OWNERS MANUAL
Thank you for purchasing the Cobra 29 LX Professional CB Radio
Transceiver. Properly used, this Cobra product will give you many years
of reliable service.
Citizens Band Radio History
Invented by Al Gross in 1945, the CB radio originally served as a method of communication for troops
during World War II. After the war, Gross worked to make two-way radios a way of communication for per-
sonal use and the CB radio service was established by law in the U.S. in 1949. It wasn’t until the 1970s
that technology advanced and the CB market caught on as a method of communication between drivers
to report police speed traps and road hazards.
The Citizens Band Radio Service consists of 40 channel frequencies that are mostly 10 kHz apart. Trans-
mitter power is limited to 4 watts in the US, and range can vary depending on the terrain and quality of
the product.
Currently, the Citizens Band service does not require a license for operation, regardless of age, as long as
the rules of operation established by the Federal Communication Commission (FCC) are followed.
Petition For FCC Part 95 Rule Changes
In 2016, Cobra petitioned the FCC to revise Part 95 rules to allow CB radios to use frequency modula-
tion (FM). Cobra contended that FM offers improved speech quality and lower noise interference, which
improves the standard of two-way radios and is a benefit to the customer.
Through the direct efforts of Cobra Electronics and the enthusiastic support from loyal customers and the
distribution network the FCC granted the request. In 2021, Part 95 officially was updated to include FM as
an option for two-way radio use.
Today, thanks to Cobra Electronics’ petitions to improve the quality of the Citizens Band Radio Service,
users can enjoy the benefits of CB radio communication in a range of industries.
Should you encounter any problems with this product, not understand its features, menu or
installation, please refer to the this owner’s manual. If you require further assistance, after reading this
manual, we are here to help:
Service, Orders & Product Questions
For service, product questions and service hours call 800-543-1608 or go to www.cobra.com
For Assistance Outside the U.S.A.
Contact Your Local Dealer
Customer Support
A1
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Our Thanks to You
Intro Operation Customer
Assistance
Warranty
Notice
Main Icons
Secondary Icons
Caution Warning
Installation Customer
Assistance
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 interfer-
ence caused by unauthorized modifications to this equipment.
Such modifications could void the user’s authority to operate
the equipment.
NOTES
29 LX Features
29 LX Features and
FCC Regulations
4-Pin Microphone
Jack
Power On/Off/
Volume/Squelch
Control
Dynamike
Control
Menu/Enter/Channel
Selector
RF Gain
Control
Delta Tune
Control
TalkBack/
SWR CAL
Control
Scan/Memory
Scan Button
Channel 9/19
Button
CB/Weather/
PA Button Dim/ESC
Button
LCD DisplayNB/ANL Button
S/RF/SWR/CAL
Button
Signal Strength Meter
Antenna Connector
Public Address
Speaker Jack
External Speaker
Jack
Power Jack
Push-To-Talk (PTT)
Button
4 Pin Microphone
Connector
A3A2
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