Cobra 29 LX LE Operating instructions

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............................................................6-7
Ignition Noise Interference.............................................................................7
Operating Your 29 LX MAX
Turning On Your CB ......................................................................................8
Setting Channel Selector.............................................................................9
Calibrate For SWR (Standing Wave Ratio).............................................10
To Receive.........................................................................................................12
Selecting a Channel & S-Meter .................................................................13
To Transmit.......................................................................................................14
Setting Dynamike®.............................................................................................15
Setting Talkback.............................................................................................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
Turn NightWatch Illumination On/Off.......................................................21
Setting Contrast Mode .....................................................................................22
Bluetooth®Pairing ...................................................................................... 22-23
iRadar Smartphone App.......................................................................... 24-27
Downloading the App .................................................................................24
Pairing the Radio to Use with iRadar......................................................24
AURA® Location Based Alerts ....................................................................25
iRadar® Community, Using Report Button, Radar Threat Alerts...27
Rewind-Say-Again®............................................................................................28
Playback Last Transmission.......................................................................28
Record 10 Second Memo ...........................................................................28
Weather Information.........................................................................................29
Weather Channels .........................................................................................29
Weather Alert Mode......................................................................................30
Setting Weather Alert Scan and Auto Scan..........................................30
Software Version/Factory Settings..........................................................31
NB-ANL/Off (Noise Blanker/Automatic Noise Limiter Switch) ......32
Setting Delta Tune & RF Gain Control....................................................32
Program Memory Channels ...........................................................................33
Scan/Memory Scan, Scan Memory Channels & CB Channels........34
Dimmer Control..............................................................................................34
Setting Squelch...............................................................................................35
S/RF Meter ........................................................................................................36
External Speaker, Push-To-Talk & Mic Jack...........................................37
Home And Office Set-Up.............................................................................38
Temporary Mobile Set-Up ..........................................................................39
How Your CB Can Serve You..........................................................................40
A Few Rules You Should Know.................................................................40
Channel 9 Emergency Messages..............................................................41
CB 10 Codes .....................................................................................................42
Frequency Ranges ..............................................................................................44
29 LX MAX Specifications................................................................................45
Warranty Information.......................................................................................46
FCC Statement ...............................................................................................48-49
Optional Accessories.........................................................................................50
If You Need Service/Trademark Info ........................................ Back Cover
Features of This Product
• Selectable 4-Color LCD Display
• Advanced Bluetooth® Connectivity
• Rewind-Say-Again®
• Memo Record
• iRadar App Integration
• Report Feature
• NightWatch® Illumination
• 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
• Multi-Function Heavy-Duty Electret
Microphone with Phone, Rewind-
Say-Again® & Report Functions
• Full 4 Watts AM RF Power Output
• SWR Calibration Meter
• Instant Channel 19 and 9
• Front Panel 6-Pin Microphone
Connector
• Switchable Automatic Noise Limiter
& Noise Blanker
• Adjustable Dynamike Boost
• Tactile Controls
• 9 Ft Mic Cord
• Programmable Dimmer Control
• RF Gain
• External Push-To-Talk Jack
• External Microphone Jack
Bluetooth® Features
• Dual Point Bluetooth®
• Caller I.D.
• A2DP Audio Streaming
• Phone Directory
1
How to Use Your Cobra 29 LX MAX
29LX_MAX_MANL.indd 1 10/27/16 4:02 PM

Installation
Installation
32
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.
Location
Plan a location of the transceiver and microphone
bracket before starting the installation.
Select a location that is convenient for operation, yet
does not interfere with the driver or the passenger.
The transceiver is usually mounted to the underside of
the dash with the microphone bracket beside it.
Note
The transceiver is held in the
universal mounting bracket by
two thumbscrews which allow
for adjustment at a convenient
angle.
The bracket includes two
self-tapping screws and star
washers. The mounting must
be mechanically strong and
conveniently located.
continued
Drill the pilot and secure the bracket.
2
1
Connect the antenna cable plug to the receptacle
marked “ANT” on the back of the unit.
3
ANT EXT MIC EXT. PTT EXT.SP.
+POWER–
29LX_MAX_MANL.indd 2-3 10/27/16 4:02 PM

Installation
54
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.
Note
Connecting to an accessory
fuse prevents the unit from
being left on accidentally, and
also permits operating the unit
without running the engine
when the ignition is set to the
accessory position.
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.
Note
The Clock/Timer feature needs
to be reset when connected to
a switched accessory fuse.
Connect the red lead of the DC power cord to an
accessory 12 volt fuse or directly to the battery.
Connect the black lead to the negative side of the
vehicle electrical system. This is usually the chassis.
Any convenient location with a good electrical
contact (remove paint) may be used.
4
5
Plug the power cable into the back of the unit
marked “Power”. Be sure to observe polarity
markings.
Mount the microphone
bracket on either side of the
unit (driver’s left) using the
two screws supplied.
The bracket should be
placed under the dash so
the microphone is readily
accessible.
6
7
Attach the microphone cable to the receptacle on
the front of the unit and install the unit in the
bracket securely.
8
ANT EXT MIC EXT. PTT EXT.SP.
+POWER–
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM
WX !
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN
MIN OFF
MAX
SQ
Installation
Note
If the microphone is not
connected, audio will not
be heard at the speaker.
29LX_MAX_MANL.indd 4-5 10/27/16 4:02 PM

ANT EXT MIC EXT. PTT EXT.SP.
+POWER–
Ignition Noise Interference
Antennas
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 the signal level is
adequate, the background noise does not present a seri-
ous 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 MAX has an automatic noise
limiter, in some installations ignition interference
may be
high enough to make good communications challenging.
Many possibilities exist and variations between vehicles
require different solutions. Consult with your Cobra
dealer or radio technician for help in locating the source
of severe noise.
Marine Installation
The transceiver will not operate at maximum
efficiency in a boat without a ground plane, (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.
CB Antenna
Since the maximum allowable power output of the
transmitter is limited by the FCC, the antenna is critical
in affecting the transmission distance. Only a properly
matched antenna system will allow maximum power
output. Loaded type antenna models are highly recom-
mended 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.
7
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 773-889-3087 for further
information.
6
1
A standard antenna connector is provided
on the transceiver for easy connection.
29LX_MAX_MANL.indd 6-7 10/27/16 4:02 PM

Press the CB/WX button to change between CB and
weather modes.
Operation
9
Operation
8
Turning On the Radio
Make sure the power cord, antenna and microphone
are connected to their proper connectors before
starting.
Setting Channel Selector
1
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM WX !
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN
MIN OFF
MAX
SQ
2
Rotate the On/Off Volume knob clockwise to turn
the unit on and adjust to a normal listening level.
Select one of forty channels. The selected channel
(1 through 40) will be indicated by the readout
directly above the channel selector knob
3
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM WX !
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL DYNAMIKERF GAIN DELTA TUNE
T BACK SWR
CAL
OFF
MIN MIN
OFF
MAX
SQ
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
RX
NB/ANL
MEM WX !
ANL
S/RF
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN
MIN OFF
MAX
SQ
29LX_MAX_MANL.indd 8-9 10/27/16 4:02 PM

While holding the
mic button adjust
the SWR CAL
knob so the meter
swings to the CAL
mark on the right
side of the meter.
Operation
Operation
1110
continued
Note
Calibration must be made
in an open area (never in a
garage). The vehicle ‘s doors
must be closed. 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.
Push and hold the mic button.
Press SWR/CAL button to select CAL.
2
1
3
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
Set the radio to channel 20.
4
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM WX !
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN
MIN OFF
MAX
SQ
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
TX
RX
NB/ANL
MEM WX !
ANL
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN
MIN OFF
MAX
SQ
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
RX
NB/ANL
MEM WX !
ANL
S/RF
NB/ANL
S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL DYNAMIKERF GAIN DELTA TUNE
T BACK SWR
CAL
OFF MIN MIN
OFF
MAX
SQ
29LX_MAX_MANL.indd 10-11 10/27/16 4:02 PM

Rotate the On/Off Volume knob clockwise.
While receiving, the RX icon will be displayed and the
lower portion of the meter will show the incoming
signal strength.
Repeat the same steps two through five on Channel 1
and 40. This will check SWR for all channels.
The S/RF-SWR-CAL button must be set in the S/RF
setting to read the meter.
6
Release the PTT button and press and release the
S/RF-SWR CAL button to the SWR position. Then
press the PTT button to read the SWR reading.
5
Operation
13
Operation
12
1
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.
S-Meter
The S-Meter swings proportionately to the strength of
the incoming signal when receiving.
Rotate the channel selector clockwise or counter-
clockwise to select the desired channel.
1
Selecting A Channel
To Receive
1
TX
RX
NB/ANL
MEM WX !
ANL
SWR
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFFMAX
SQ
SIG +30dB
1
1.5 23CAL
3579
SWR
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
RX
NB/ANL
MEM WX !
ANL
S/RF
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN
MIN OFF
MAX
SQ SIG +30dB
1
1.5 23CAL
3579
SWR
RX
NB/ANL
MEM WX !
ANL
S/RF
NB/ANL S/ RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFFMAX
SQ
Calibrate for SWR continued
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
RX
NB/ANL
MEM WX !
ANL
S/RF
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL DYNAMIKERF GAIN DELTA TUNE
T BACK SWR
CAL
OFF
MIN MIN
OFF
MAX
SQ
29LX_MAX_MANL.indd 12-13 10/27/16 4:02 PM

PUSH &
HOLD
Setting Dynamike®
This controls the microphone sensitivity
(outgoing audio level).
To Transmit
1514
Caution!
Be sure the antenna is properly
connected to the radio before
transmitting. 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.
Operation Operation
3
Select a desired channel.
1
Initially, set Dynamike fully clockwise so that
maximum voice volume is available. The Dynamike
may have to be reduced in some conditions.
2
Transmit
Push and hold the mic button to transmit.
When transmitting, hold the microphone two inches
from your mouth and speak in a clear, normal voice.
Release the mic button to receive.
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM WX !
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB
/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE
T BACK SWR
CAL
OFF MIN
MIN
OFFMAX
SQ
Setting TalkBack
This control is used to adjust the desired amount of
modulation talk back present at the speaker during
transmit.
At the fully counter-clockwise position the TalkBack
is Off.
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM WX !
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN
MIN OFF
MAX
SQ
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
NB/ANL
MEM WX !
ANL
S/RF
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL DYNAMIKERF GAIN DELTA TUNE
T BACK SWR
CAL
OFF
MIN MIN
OFF
MAX
SQ
29LX_MAX_MANL.indd 14-15 10/27/16 4:02 PM

Operation
Operation
17
16
Menu Mode
Rotating Menu/Enter knob is used to move the cursor.
Pressing the Menu/Enter knob is used to enter the menu
and to select.
Rotate the Menu/Enter knob clockwise and counter-
clockwise to navigate the menu levels.
Press the Menu/Enter knob to select.
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM WX !
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKERF GAIN
DELTA TUNE T BACK SWR
CAL
OFF
MIN MIN
OFF
MAX
SQ
Note
Use Dim/Escape button to exit
from any menu back to CB
standby mode.
Setting the Clock
To set the clock, press the Menu/Enter knob and select
Set Clock.
Press again to set the clock.
• Rotate the Menu/Enter knob to select the hour,
minutes and AM/PM.
• Press the Menu/Enter knob to save each value.
Press the Menu/Enter knob to SAVE and EXIT.
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM WX !
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKERF GAIN
DELTA TUNE T BACK SWR
CAL
OFF
MIN MIN
OFF
MAX
SQ
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
SETTING
BLUETOOTH
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
NW LIGHTING
CONTRAST
RADIO CHECK
Level 3: Level 4:
Level 5:
Note
The clock will not appear on the
display if the time has not yet
been set.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE RF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFF
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 WX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX
DIM
SCAN
CLOCK IS OFF
SET CLOCK
TURN CLOCK ON
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFFMIN 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
SET AM-PM
11:30 PM
SAVE AND EXIT
Setting the Alarm
Your 29 LX MAX can be utilized as an alarm clock.
To set the alarm, press the Menu/Enter knob and select
Alarm Clock.
Press SET ALARM TIME.
• Rotate the Menu/Enter knob to select a value.
• Press the Menu/Enter knob to save.
Press the Menu/Enter knob to set AM/PM. Press Menu/
Enter knob to save and proceed to setting the Set
Snooze Length or EXIT.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE RF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFF
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 WX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX
DIM
SCAN
ALARM IS OFF
SET ALARM TIME
TURN ALARM ON
Note
The radio should be connected to
a constant 12V source to maintain
the time when the radio is turned
off.
Note
The clock will be displayed in the
top right corner of the display
29LX_MAX_MANL.indd 16-17 10/27/16 4:02 PM

Setting the Count Down Timer
To set the count down timer, press Menu/Enter knob and
select Set Count Down.
Follow the instructions in Setting the Clock section (page
17) to set the count down hour and minutes. Once the
desired count down time is selected, press the Menu/Enter
knob again to save and exit.
Radio Check Mode
Allows testing of important radio functions. Press Menu/
Enter knob and select RADIO CHECK.
Press Menu/Enter to select 1st test, 2nd test and 3rd test.
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 dis-
played. Press Menu/Enter knob to advance to next test.
Note
Use Dim/Escape button to
exit and 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 a 3.3 to 4 Watt output
level. Once the Push-to-Talk button is pressed, Pass or Fail
will be displayed if the level is outside the limits.
Note
Use Dim/Escape button to exit
and return to CB standby mode.
If 10 seconds pass or if Enter but-
ton pressed, go to 3rd test.
Note
Press Push-To-Talk within 10
seconds or unit will go to the
next test.
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
Note
If 10 seconds pass or if Enter
button pressed, testing is
complete. Unit will return to
CB Standby mode.
Test 3- Antenna Mismatch Warning: Press the
Push-to-Talk button to check for proper matching.
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
1
23
1
23
1
23
Operation
19
18
Operation
Key Tones Mode On and Off
Press the Menu/Enter knob and select Key Tones.
Press the Menu/Enter to set Key Tones On/Off.
Rotate the Menu/Enter knob to select On/Off and press
the Menu/Enter knob to exit to main menu.
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
SET KEY TONES
ON
OFF
Setting the
Alarm continued
Setting the Alarm continued
Once the alarm settings are complete, rotate the Menu/Enter
knob clockwise to Set Snooze and press Menu/Enter to select.
Select the desired snooze time (from 1 to 60 minutes).
Press Enter to save and exit, return to Set Snooze or Alarm
Length. Select Alarm Length to set the alarm duration
(from 10 to 300 seconds). Press the Menu/Enter knob save
and 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
EXIT
SET SNOOZE
ALARM LENGTH
Note
Default snooze time length
is 10 minutes.
Note
Use Dim/Escape button to
exit from any menu back to
CB standby mode.
Note
Default alarm length
is 60 seconds and is set in
10 second increments.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFFMIN 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
SET CLOCK
ALARM CLOCK
SET COUNT DOWN
Note
Once count down time
is complete, there will be
audio tones for 5 seconds.
PRESS PTT
TO CHECK
ANTENNA
29LX_MAX_MANL.indd 18-19 10/27/16 4:02 PM

Operation
Operation
21
20
Setting Brightness Mode
Press Menu/Enter knob to select Brightness
Press the Menu/Enter knob to select Brightness. Press the
Menu/Enter knob to select Day-Bright. Turn Menu/Enter
clockwise to increase brightness and turn counter-clockwise to
decrease brightness.
To set the Night-Dim level, select Night-Dim then
repeat instructions above.
Press Menu/Enter knob to save and exit routine. Press
ESC to exit menu without saving.
WX AUTO SCAN
DISPLAY COLOR
BRIGHTNESS
Note
Exit will return to the previous
menu mode. Use Dim/Escape
button exit and return to CB
Standby.
Setting the Display Color Mode
Press the Menu/Enter knob and select Display Color.
Press and release Menu/Enter to set the color.
Rotating the Menu/Enter knob changes the display
color from green to blue to amber to red then back to
green.
Press the Menu/Enter knob to save and exit and set
the Brightness 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
WX AUTO SCAN
DISPLAY COLOR
BRIGHTNESS
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE RF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFF
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 WX !
ANL
S/RF
SWR
CAL
CH 9/
19
CB/WX
DIM
SCAN
SAVE AND EXIT
SET COLOR
1
2
3
4
Turn NightWatch Illumination On-Off-Hi-Lo
Press the Menu/Enter knob and scroll down to select
NW Lighting.
Rotate the Menu/Enter knob clockwise to change the
setting to HI-LO or OFF.
Press the Menu/Enter knob to save and exit.
NW IS SET HI
HI-LOW-OFF
SAVE AND 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
NW LIGHTING
CONTRAST
RADIO CHECK
Note
To select HI-LO-OFF, rotate Menu/
Enter knob to change the setting.
Press and release the Menu/Enter
knob to set the Nightwatch®
illumination level, save and exit.
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM WX !
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKERF GAIN
DELTA TUNE T BACK SWR
CAL
OFF
MIN MIN
OFF
MAX
SQ
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM WX !
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKERF GAIN
DELTA TUNE T BACK SWR
CAL
OFF
MIN MIN
OFF
MAX
SQ
SET BRIGHTNESS
SAVE AND EXIT
29LX_MAX_MANL.indd 20-21 10/27/16 4:02 PM

Note
Dual Point Bluetooth:
For team drivers, two cell phones
can be paired, however; only one
phone can be used at a time.
Bluetooth®
Calls on a Bluetooth® enabled cell phone can be routed
through the 29 LX MAX speaker or external speaker
accessory.
2322
Operation Operation
To Pair with a Cell Phone
Press and hold the BT Button for six seconds to enter
Ready For Pairing mode. A tone will sound to confirm
entry to pairing mode.
A. First time pairing with a cell phone:
I. A tone will sound to confirm Pairing mode.
II. Follow the cell phone manufacturer’s instruction to
enable its Bluetooth function. Select 29 LX MAX from
the list of Bluetooth devices. Enter the PIN (Personal
Identification Number) 0000 if required. Most smart-
phones no longer require a PIN entry.
Note
If no further pairing steps are
taken, the unit will time-out
and return to Standby after 90
seconds. During the pairing
process, press and release the
BT Button or ESC to cancel the
pairing process.
Note
For Text-to-Speech conversion,
an app should be downloaded
to your cell phone.
Note
When cell phone calls are in
progress using the Bluetooth
features, the CB functions of
the unit are disabled unless the
phone call is put on hold (see
page 26).
Setting Contrast Mode
Press the Menu/Enter knob and rotate clockwise to select
Set Contrast.
Rotate the Menu/Enter knob clockwise to increase
contrast, counter-clockwise to decrease contrast.
Press the Menu/Enter knob to save and exit and continue
settings or ESC to exit Menu mode.
SET CONTRAST
------
SAVE AND EXIT
III. Successful pairing will be indicated by
a tone to confirm entry to Connected
mode. A pair record will also be established for
subsequent connections.
B. Subsequent pairings with a cell phone:
I. Follow the cell phone manufacturer’s instruction,
to enable it’s Bluetooth ® function.
II. Successful pairing will be indicated by a tone to
confirm entry to Connected 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
READY FOR
PAIRING
PW 0000
BT Button
NW LIGHTING
CONTRAST
RADIO CHECK
1
2
3
To Answer Calls
Press and release the BT Button when the cell phone ring is
heard through the 29 LX MAX speaker.
Speak into the 29 LX MAX microphone. The CB function
of the unit and PTT Button will be
disabled while a call is in progress.
Press and release the BT Button to end the call. A
tone will sound.
To Initiate Calls
To initiate the phone’s voice assistant, if supported,
press and release the BT Button twice.
Dial a number according to the cell phone manufacturer’s
instructions. The key press and other tones will be heard
through the 29 LX MAX speaker.
Press Send on the cell phone send key a few seconds,
you will hear the ring tone for the number you dialed
on the CB speaker.
Once connected, speak into the microphone.
Press and release of the BT Button to end the call. A
tone will sound.
Press and hold the BT Button for two seconds to redial
a number. A tone will sound; and after a few seconds,
you will hear the ring tone for the number you dialed.
1
2
3
4
5
Note
When dialing a phone number
on your phone’s keypad, it is
recommended that you dial
when the vehicle is not in
motion.
Note
The external microphone (see
accessories on page 35) can be
plugged into the rear of the
unit and clipped to a pocket
or lapel for hands-free speech
during calls.
When the microphone is
plugged in, the main microphone
will not pick up speech during
calls but will be fully functional
for CB operation.
29LX_MAX_MANL.indd 22-23 10/27/16 4:02 PM

Operation Operation
2524
For optimal performance and access to all this radio’s
advanced features, you should download the iRadar app. To
download the app you must enter the iTunes Store or Google
Play and search for “Cobra iRadar”. Follow the onscreen
instructions to download and install the Cobra iRadar app.
Make sure to check out the Tutorial for a full explanation of
app features. The Tutorial can be accessed from the Menu.
Information on specific settings and explanations of
radar bands can be found by pressing the green info icons
in the settings menus.The iRadar app can also be used to
change and easily adjust the alert settings.
Downloading the iRadar App
Note
The radio will not alert when
police are monitoring speed
with radar or laser guns.
Pairing/Connecting With Your Radio continued
For Android™:
a. Power on the CB radio.
b. Make sure your Android™Bluetooth ® is turned On.
Press and hold the Bluetooth button on the micro-
phone to put the radio into Bluetooth pairing mode.
c. Select Bluetooth from SETTINGS on the Android device.
The Available Devices list should contain the following:
DEVICES:
29 LX MAX (phone functionality)
29 LX MAX (iRadar app functionality)
Select 29 LX MAX to pair and connect to the 29 LX
MAX phone call feature.
d. Select 29 LX MAX for pairing to the iRadar app.
The phone might show“Paired but not connected”
in this menu. That’s OK as the connection will be
completed after opening the iRadar App.
e. Enter the iRadar App to complete the connection.
f. From the main menu, 29 LX MAX - CONNECTED
appears.
Note
For more information on pairing
with Bluetooth ® devices consult
your phone’s owners manual.
If you are having trouble
initializing or maintaining
your Bluetooth
® connection
completely turn off your
smartphone and the radio
device,wait 30 seconds,and then
turn them back on.
Pairing/Connecting With Your Radio to Use
with the Cobra iRadar App
GPS and iRadar-based features require connection to a
Bluetooth® Smart ready device and the Cobra iRadar app.
For a full list of Bluetooth® devices visit www.bluetooth.com
Please note, this is a newer Bluetooth ® technology
and pairing is not always done in the same manner and
menus as conventional Bluetooth
® .This radio will NOT
APPEAR in the Bluetooth
® Settings menu of your iPhone ® .
For iPhone
® 5s and later:
a. Power on the CB radio.
b. Make sure your iPhone Bluetooth ® is turned On.
c. Start the Cobra iRadar application. Press the Menu
icon (three horizontal bars) in the upper left corner of
the app and select Devices. Select 29 LX MAX - APP
from the devices list. A successful connection shows
under the paired devices list as 29 LX MAX - APP
CONNECTED.
d. From the main menu, 29 LX MAX - CONNECTED
appears.
Your radio is capable of providing you with LBAs and iRadar
Community threat sharing data when connected to phone
running iRadar.The radio uses the GPS in your smartphone to
connect to and obtain the latest LBA’s and alert you to them.
Vehicle speed uses your phone’s GPS as well.
AURA®Location-based Alerts (LBAs)
and iRadar Community
29LX_MAX_MANL.indd 24-25 10/27/16 4:02 PM

2726
Operation Operation
To Place a call on Hold
During a call the display will show:
Press Menu/Enter knob. This puts the call on hold
allowing CB communication.
To Return to Phone Call
While a call is on hold the display will show:
Press Menu/Enter knob to resume the call.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFFMIN 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
TO HOLD CALL
PRESS ENTER
AND GO TO CB
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
RETURN TO CALL
PRESS ENTER TO
Note
If the call is dropped while
on hold, you will hear a beep
and the CB radio will return to
standby.
Allows for voice Caller ID,
e-mails and text messages to
be read through the CB radio.
Note
A third party app download
is required in order for this
feature to be functional.
To Turn Bluetooth ON/Off on the Radio:
Press Menu/Enter and select Bluetooth:
Press Menu/Enter again to select Bluetooth Phone ON
or OFF:
Press Menu/Enter again to select Bluetooth Media ON
or OFF:
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFFMIN 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
SET BT PHONE
BLUETOOTH ON
SET BT MEDIA
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFFMIN 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
ON
PHONE ON
OFF
A2DP Audio
Streaming
SWR/CAL
NB/ANL
VOL SQ DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFFMIN 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
ON
MEDIA ON
OFF
Using the Report Button
You can report to the iRadar Community locations where you
see active police enforcement or a caution area by
pressing the REPORT button on the microphone.
To report Live Police, press and release the REPORT button.
To report a Caution Area,press and hold the REPORT
button for 2 seconds.
A double beep confirmation tone will be heard.
When receiving an alert you can mark the alert TRUE or FALSE by
pressing and releasing the REPORT button.To mark the alert
TRUE, press and release the REPORT button.To mark an alert
FALSE, press and hold the REPORT button for 2 seconds.
A double-beep confirmation tone will be heard.
1
2
When other iRadar users, detect a radar or laser signal the
alert information is anonymously sent to Cobra’s cloud
servers.Within seconds, that information is processed and
displayed on your map as part of a Threat Area.
iRadar users can also report live police, red light cameras,
caution zones, etc. These are send to Cobra’s cloud serv-
ers and displayed on your map and on the radio as user
reported Location Based Alerts (LBA).
AURA and iRadar continued
The distance will count down as you approach the Location-
based Alerts (LBA) Area. The alert types are:
Photo-enforced Areas
Red-light Cameras
Speed Cameras
As you approach a threat area the iRadar app and the 29 LX
MAX will display the type of threat (laser, radar, radar band, etc),
the threat level, and when the threat was reported.
Known Speed Trap
Areas
Caution Areas (High
Accident Areas)
Note
Caution Areas may include:
Car on the side of the road,
traffic slowdowns,
hazard on road, etc.
29LX_MAX_MANL.indd 26-27 10/27/16 4:02 PM

Operation Operation
2928
Weather
Information
Note
If you wish to receive a
listing of NOAA ‘Weather Radio
Transmitter locations, contact
your nearest National Weather
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 but-
ton in the WX mode. You will then be able to hear the
Weather Warning Broadcast.
Your 29 LX MAX has a special auto squelch circuit for
weather transmission which disables your squelch
control.
Weather
Channels
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 30):
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.
Weather Auto Scan
If active while in CB 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 30).
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM WX !
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFFMAX
SQ
Rewind-Say-Again®
Your 29 LX MAX allows you to play back the last trans-
mission received over the airwaves and record a 10
second memo to be played back at any time.
To Playback the Last Transmission
Press and release the Rewind-Say-Again button on the
mic. The last transmission that the radio received will
be heard over the speaker.
To Record a 10 Second Memo
Press and hold the Rewind-Say-Again button on the
mic for the duration of the 10 second recording.
Speak into the microphone to record the Memo.
To play back the recorded memo, double press and
release the Rewind-Say-Again button. The Memo will
be heard over the speaker.
PUSH &
HOLD
Note
The previous Memo recording
will be erased when a new one is
recorded.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE RF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFF
MAX
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 WX !
ANL
S/RF
SWR
CAL
RWD-SAY-AGAIN
10 SECONDS
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE RF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFF
MAX
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 WX !
ANL
S/RF
SWR
CAL
RECORDING MEMO
10 SECONDS
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
29LX_MAX_MANL.indd 28-29 10/27/16 4:02 PM

Operation
30
Setting Weather Auto Scan
Press the Menu/Enter knob and rotate clockwise to WX Auto
Scan. Press the Menu/Enter knob to select On/Off.
Press the Menu/Enter knob to select On/Off and exit to
the main menu.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE RF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFF
MAX
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
ON
OFF
AUTO SCAN IS OFF
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
Setting Weather Alert Scan
Press the Menu/Enter knob and rotate clockwise to
WX Alert Scan. Press the Menu/Enter knob to select On/Off.
Press Menu/Enter knob to select On/Off and exit to the
main menu.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE RF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFF
MAX
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
WX! SCAN OFF
ON
OFF
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
Setting Weather Alert Mode
Turns WX Alert On/Off. Default is Off.
Press the Menu/Enter knob to select Set WX Alert.
If Weather is On, WX Alert Icon will be displayed.
Press the Menu/Enter knob to select On/Off and exit to
main menu.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE RF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFF
MAX
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
WX! ALERT OFF
ON
OFF
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
WX !
Note
Press Dim/Escape
button to return to CB mode.
Note
If an alert is detected the unit
will activate WX mode on the
channel with the alert.
Operation
31
Software Version/Factory Settings
Displays current software version and returns unit to
original factory settings. To view the software version,
press the Menu/Enter knob and select Setting then
Software Version.
To restore default settings, Press the Menu/Enter knob
and select Settings then Go To Rest. Defaults.
Press the Menu/Enter knob to restore default settings.
Choose NO to maintain present settings with no change.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE RF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFF
MAX
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 WX !
ANL
S/RF
SWR
CAL
CONTRAST
RADIO CHECK
SETTING
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE RF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFF
MAX
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 WX !
ANL
S/RF
SWR
CAL
REST. DEFAULTS
YES
NO
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE RF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFF
MAX
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 WX !
ANL
S/RF
SWR
CAL
SOFTWARE VER
REST. DEFAULTS
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
Note
Default display color is blue.
29LX_MAX_MANL.indd 30-31 10/27/16 4:02 PM

3332
Operation Operation
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.
RF Gain Control
The RF Gain is used to optimize reception in strong or
weak signal areas.
Note
The RF noise blanker is very
effective in reducing repetitive
noises such as ignition
interference.
Rotate the RF Gain knob counterclockwise to reduce gain
in strong signal areas. In weak signal areas turn clockwise
to increase gain.
NB-ANL/OFF (Noise Blanker/Automatic
Noise Limiter) Button
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM WX !
ANL
S/RF
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFFMAX
SQ
Pressing the Scan/Memory Scan button toggles from
Off to Scan All Channels to Memory Channel Only
Scan and back to Off.
Press the Dim/Escape button to end Scan and
return to CB mode.
1
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFFMAX
SQ
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.
2
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM WX !
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFFMAX
SQ
Note
The radio should be
squelched before scan
features are activated.
Note
Keying the microphone will stop
the scan feature.
Set first channel. Press and hold the Scan/MemScan
button. The Memory icon will appear. Select a second
channel, press and hold the Scan/MemScan button again
until the Memory icon appears. Repeat above steps to
enter up to 10 channels in memory.
Program Memory Channels
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL DYNAMIKERF GAIN DELTA TUNE T BACK
SWR
CAL
OFF MIN MIN OFFMAX
SQ
Note
To remove a channel from
memory, go to the unwanted
memory channel then press and
hold the SCAN/MEM SCAN
button until the MEM icon
turns off.
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM WX !
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN MIN
OFF
MAX
SQ
Setting Delta Tune
Rotate the Delta Tune knob to the center position for
optimum tuning.
29LX_MAX_MANL.indd 32-33 10/27/16 4:02 PM

Operation
Operation
35
34
Full clockwise rotation closes the gate
allowing only very strong signals to enter.
Full counterclockwise rotation opens the “gate”
allowing all signals in.
Dimmer Control
Setting Squelch
Squelch is the “control gate” for incoming signals.
1
2
1
Press the Dim/Esc button to toggle between day and
night settings.
See setting instructions on page 21.
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
GATE OPEN
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
Gate open
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
GATE CLOSED
Gate closed
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR TX
RX
NB/ANL
MEM WX !
ANL
S/RF
SWR
CAL
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL DYNAMIKERF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFFMAX
SQ
Scan CB Channels
To scan all 40 CB channels, the unit must be squelched.
Press and release the Scan/Mem Scan button once.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE RF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFF
MAX
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
CB SCAN
27.405
ESC
MEM SCAN
SCAN
CH 9/19
DIM
CB
/
WX
Scan Memory Channels
To scan memory channels, press and release the
Scan/Mem Scan button twice.
SWR/CAL
NB/ANL
VOL SQ DYNAMIKE RF GAIN DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFF
MAX
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
CB MEM SCAN
27.405
ESC
MEM SCAN
SCAN
CH 9/19
DIM
CB/WX
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
RX
NB/ANL
MEM WX
!
ANL
S/RF
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN MIN
OFF
MAX
SQ
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
RX
NB/ANL
MEM WX !
ANL
S/RF
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN MIN
OFF
MAX
SQ
Note
If in WX mode the unit will scan
Weather channels.
29LX_MAX_MANL.indd 34-35 10/27/16 4:03 PM

Operation
Operation
37
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.
The S/RF-SWR-CAL button must be in the
S/RF mode.
1
Note
The external speaker should
have 8-ohm impedance and
be rated to handle at least 4.0
watts. When an external speaker
is plugged in, the internal speaker
is automatically disconnected.
Note
Cobra external speakers are
rated at 10 watts.
Connect an external speaker to the external speaker
jack on the rear panel.
36
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.
3
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
GATE
Gate set to Desired
Squelch Setting (DSS)
Continued
ANT EXT MIC EXT. PTT EXT.SP.
+POWER–
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
TX
RX
NB/ANL
MEM WX !
ANL
S/RF
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN MIN OFFMAX
SQ
SIG
RF
+30dB
1
1.5 23CAL
3579
SWR
RX
NB/ANL
MEM WX !
ANL
S/RF
NB/ANL S/RF
SWR/CAL
ESC
MEM SCAN
SCAN CH 9/19
DIM
CB/WX
M
E
N
U
P
U
S
H
E
N
T
E
R
VOL
DYNAMIKE
RF GAIN
DELTA TUNE T BACK SWR
CAL
OFF MIN
MIN OFF
MAX
SQ
ANT EXT MIC EXT. PTT EXT.SP.
+POWER–
External Push-to-Talk Jack
The external push-to-talk jack is used for remote
transmit function with optional PTT (see accessory page
47) and when the external microphone is connected.
Connect an external push-to-talk device to the external
push-to-talk jack on the rear panel.
ANT EXT MIC EXT. PTT EXT.SP.
+POWER–
External Microphone Jack
The external microphone jack is used to connect the
supplied external microphone for phone use only.
When the external PTT (above) is connected, the
external microphone can be used for both CB and
phone voice transmissions.
Connect the external microphone (included) to the
external microphone jack on the rear panel.
Setting Squelch continued
29LX_MAX_MANL.indd 36-37 10/27/16 4:03 PM

Temporary Mobile Set-Up
Home And Office Set-Up
3938
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.
ANT EXT MIC EXT. PTT EXT.SP.
+POWER–
Base Station Operation
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.
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.
1
Connect the properly installed and matched base
station antenna.
Simply connect the red (+) and black (-)
leads of the transceiver to the corresponding
terminals of the power pack.
Plug the power cable into the back of the unit
marked “Power”. Be sure to observe the polarity
markings.
2
3
ANT EXT MIC EXT. PTT EXT.SP.
+POWER–
+—
29LX_MAX_MANL.indd 38-39 10/27/16 4:03 PM