How to Use Your Cobra 29 LX LE
Contents
Features .........................................................................................................1
The CB Story .................................................................................................A1
FCC Regulations
FCC Warnings
Included Accessories
Controls & Indicators ................................................................................A2
Our Thanks to You .....................................................................................A3
Customer Support
Installation
Location ....................................................................................................2
Mounting and Connection ................................................................2
Antennas
CB Antenna ..............................................................................................6
Marine Installation ................................................................................6
Ignition Noise Interference....................................................................7
Operating Your 29 LX LE
Turning On Your CB ..............................................................................8
Setting Channel Selector .................................................................... 9
Calibrate For SWR (Standing Wave Ratio) ....................................10
To Receive ................................................................................................12
Selecting a Channel .............................................................................. 13
S-Meter ......................................................................................................13
To Transmit .............................................................................................. 14
Setting Dynamike® ...............................................................................15
Menu Mode .............................................................................................16
Radio Check Mode ................................................................................17
Setting Display Color Mode ...............................................................18
Setting Brightness Mode ....................................................................19
Setting Contrast Mode ........................................................................19
Weather Information ............................................................................20
Weather Channels .................................................................................21
Weather Alert Mode .............................................................................22
Setting Weather Alert Scan................................................................ 22
Setting Weather Auto Scan ............................................................... 22
Key Tones Mode .................................................................................... 23
Software version/Factory Settings .................................................. 23
NB-ANL/Off (Noise Blanker/Automatic.......................................... 24
Noise Limiter Switch)
RF Gain Control ......................................................................................24
Program Memory Channels ...............................................................25
Scan/Memory Scan ............................................................................... 25
Scan CB Channels .................................................................................. 29
Scan Memory Channels ...................................................................... 26
Dimmer Control .....................................................................................26
Setting Squelch ...................................................................................... 26
S/RF Meter ................................................................................................28
External Speaker ....................................................................................29
PA (Public Address) ...............................................................................30
Home And Office Set-Up ....................................................................32
Temporary Mobile Set-Up ..................................................................33
How Your CB Can Serve You .................................................................34
A Few Rules You Should Know ........................................................34
Channel 9 Emergency Messages .....................................................34
CB 10 Codes .............................................................................................36
Frequency Ranges .....................................................................................38
29 LX LE Specifications ............................................................................39
Warranty Information ..............................................................................40
Optional Accessories ................................................................................41
Optional Accessories Order Info .........................................................42
If You Need Service/Trademark Info ................................Back Cover
Features of This Product
• Selectable 4-Color LCD Display
• 10 Weather Channels
• Weather Scan
• Emergency Weather Alert
• 40 CB Radio Channels
• 40 Channel Scan
• Memory Channels
• Channel Frequency Read-Out
• Radio Check Diagnostic
• Heavy-Duty Dynamic
Microphone
• Full 4 Watts AM RF Power Output
• SWR Calibration Meter
• Instant Channel 19 and 9
• Front Panel 4-Pin Microphone
Connector
• Switchable Automatic Noise
Limiter & Noise Blanker
• Adjustable Dynamike Boost
• Tactile Controls
• 9 Ft Mic Cord
• Programmable Dimmer Control
• RF Gain
1
Installation
Location
Mounting and
Connection
Note
The transceiver is held in the
universal mounting bracket by
two thumbscrews which allow
for adjustment at a convenient
angle.
The bracket includes two selftapping screws and star washers. The mounting must be
mechanically strong, conveniently located.
Location
Plan location of transceiver and microphone
bracket before starting the installation.
Select a location that is convenient for operation,
yet does not interfere with the driver or passenger.
The transceiver is usually mounted to the underside of the dash with the microphone bracket
beside it.
Mounting and Connection
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.
2
3
Connect the antenna cable plug to the recep-
tacle marked “ANT” on the back of the unit.
Installation
continued
3
Installation
Note
Before installing the CB radio,
visually check the vehicle’s
battery connection to determine which terminal, positive
or negative, is grounded (positive is the larger of the two)
to the engine block (or chassis). A negatively grounded
vehicle has its negative lead
grounded to the chassis.
Note
Connecting to an accessory fuse
prevents the unit from being left
on accidentally, and also permits operating the unit without
running the engine.
Note
In positive ground vehicles the
red wire goes to the chassis and
the black wire is connected to
the ignition switch.
Note
When connected to an accessory fuse, unit will self test
the emergency weather alert
automatically when ignition
is turned on. Turns itself on & off.
4
In a negative grounded vehicle, connect the
red lead of the DC power cord to an accessory
12 volt fuse.
5
Connect the black lead to the negative side
of the vehicle. This is usually the chassis. Any
convenient location with a good electrical
contact (remove paint) may be used.
4
6
Plug power cable into back of unit marked
“Power”. Be sure to observe polarity markings.
7
Mount the microphone
bracket on either side
of the unit (driver’s left)
using two screws supplied. Bracket should be
placed under the dash
so microphone is readily
accessible.
Installation
8
Attach the 4-pin microphone cable to
receptacle on front of unit and install unit
in bracket securely.
Note
If microphone is not
connected, audio will not
be heard at speaker.
5
Antennas
CB Antenna
Note
For optimum performance in
passenger cars the ideal antenna location is on the center of
the roof. Second choice is on the
center of the trunk.
Note
Because many newer trucks
feature fiberglass door skins,
the outside mirror must be
grounded to the chassis via a
ground strap, if the antenna is
mounted on the mirror bracket.
Note
3-way Combination Antennas
are also available which allow
operation of all three bands
(AM-FM & CB), using a single
antenna. However, this type
of antenna usually results in
less than normal transmit and
receive range when compared
to a standard-type “Single
Band” CB antenna. Call 773889-3087 for further information.
CB Antenna
Since the maximum allowable power output of
the transmitter is limited by the FCC, the antenna
is critical in affecting transmission distance. Only a
properly matched antenna system will allow maximum power output. Cobra loaded type antenna
models are highly recommended for most installations. For models with Weather Feature (WX),
a Dual Band (Center Load/Base Load) antenna
is recommended. Consult your Cobra dealer for
further details, or call 773.889.3087 and speak to a
Cobra representative.
1
A standard antenna connector is provided
on the transceiver for easy connection.
Marine Installation
The transceiver will not operate at maximum
efficiency in a boat without a ground plate,
(unless it has a steel hull). Before attempting
installation , consult your dealer for information
regarding an adequate grounding system and
prevention of electrolysis between fittings in the
hull and water.
6
Ignition Noise Interference
Use of a mobile receiver at low signal levels is
normally limited by the presence of electrical
noise. The primary source of noise in automobiles is from the alternator and ignition system.
Typically, when signal level is adequate, the background noise does not present a serious problem.
Also, when extremely low level signals are being
received, the transceiver may be operated with
the vehicle’s engine turned off. The unit requires
very little current and therefore will not significantly discharge the vehicle’s battery.
Even though the Cobra 29 LX LE has an automatic noise limiter, in some installations ignition
interference may be high enough to make good
communications impossible. Many possibilities
exist and variations between vehicles require
different solutions. Consult your Cobra dealer or
a 2-way radio technician for help in locating the
source of a severe noise.
7
Operation
Turning On
Turning On
Make sure the power cord, antenna and microphone are connected to their proper connectors
before starting.
1
Rotate the On/Off Volume knob clockwise to
turn unit on and adjust to a normal listening
level.
CH 9/
SCAN
CB/ WX/
PA
T BACK
19
DIM
ESC
SWR
CAL
MEM SCAN
H
MEM WX !
E
N
T
E
R
F GAIN DELTA TUNE
2
Press the CB/PA/WX button to change modes.
8
Operation
A
Setting Channel Selector
NB/ANL
NB/ANL
SWR
ANL
S/RF
S/RF
RF
SWR
CAL
SWR/CAL
OFF MIN
3
Select one of forty channels and adjust
SIG
VOL SQ DYNAMIKE RF G
volume. The selected channel (1 through
40) will be indicated by the readout directly
above the channel selector knob
3
2
1.5
1
CAL
TX
RX
5
3
7
9
+30dB
S
H
U
P
E
N
U
T
N
E
M
E
R
MEM WX !
MIN
Setting Channel
Selector
Note
Press CB/WX/PA to select CB,
weather channels or PA (public
address) modes.
9
Operation
NB/ANL
M
M
Calibrate For
SWR (Standing
Wave Ratio)
Calibrate for SWR (Standing Wave Ratio)
SWR calibration is done to properly adjust the
length of the antenna and to monitor the quality
of the coaxial cable and all RF connections.
This calibration is critical in order to achieve optimum performance.
3
2
1.5
SWR
S/RF
SWR/CAL
OFF MIN
1
Select channel 20.
RF
3
1
SIG
VOL SQ DYNAMIKE
CAL
RX
5
7
9
+30dB
S
U
P
U
N
E
M
ME
H
E
N
T
E
R
2
Press SWR/CAL button to select CAL.
10
PUSH &
CH 9/
19
SCAN
HOLD
3
Push and hold mic button.
Operation
Note
Calibration must be made in an
open area (never in a garage).
Vehicle doors must be closed.
No one should be standing near
the antenna. (See your antenna
directions for more complete
information).
N
T
E
R
4
While holding mic
F GAIN DELTA TUNE
MIN OFFMAX
button adjust the
SWR CAL knob so
MEM SCAN
CB/ WX/
PA
T BACK
DIM
ESC
SWR
CAL
the meter swings
to the CAL mark on
the meter (located
on the right).
continued
Note
The reading will be slightly
higher on Channels 1 and 40
compared to Channel 20.
11
Operation
M
M
W
Calibrate for
SWR continued
Note
When switched to SWR
mode the meter reading
should ideally be as far to the
left as possible. Anything over
3 is not acceptable. A slight
antenna height adjustment
(higher or lower) may be
required. Repeat recalibration
steps.
To Receive
NB/ANL
S/RF
SWR/CAL
5
While still holding down the mic button, press
SWR
RF
SWR
SIG
VOL SQ DYNAMIKE
OFF MIN
3
2
1.5
1
CAL
RX
5
3
7
9
+30dB
S
H
U
P
E
N
U
T
N
E
M
E
R
and release the S/RF SWR CAL button to the
SWR setting, 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
NB/ANL
NB/ANL
ANL
S/RF
S/RF
SWR
CAL
SWR/CAL
VOL SQ DYNAMIKE
SWR
RF
SIG
3
2
1.5
1
CAL
RX
5
3
7
9
+30dB
S
H
U
P
E
N
U
T
N
E
M
E
R
ME
MEM
OFF MIN
1
Rotate the On/Off Volume knob clockwise.
The RX icon will be displayed.
12
MIN
Operation
L
N
Selecting A Channel
RX
5
3
7
1
IG
MIN
9
+30dB
DYNAMIKE RF GAIN DE
S
H
U
P
U
N
E
M
MEM
E
N
T
E
R
MIN MAX
Unit should be in CB mode. Rotate channel
selector clockwide or counter-clockwise to
1
select desired channel.
S-Meter
Swings proportionately to strength of incoming
signal when receiving.
3
2
1.5
SWR
S/RF
RF
3
1
SIG
OL SQ DYNAMIKE
CAL
RX
5
7
9
+30dB
S
H
U
P
E
U
N
E
M
Selecting A
Channel
S-Meter
1
The S/RF-SWR-CAL switch must be in the S/RF
setting to read the meter.
13
PUSH &
HOLD
Operation
To Transmit
Caution!
Be sure the antenna is properly
connected to the radio before
transmitting. Prolonged transmitting without an antenna,
or a poorly matched antenna,
could cause damage to the
transmitter.
Be sure to read the F.C.C. Rules
and Regulations included with
this unit before transmitting.
To Transmit
1
Select desired channel.
Transmit
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.
14
Operation
NB/ANL
M
Setting Dynamike®
This controls the microphone sensitivity
(outgoing audio level).
3
2
RF
SWR
SIG
1.5
1
CAL
TX
RX
5
3
7
9
+30dB
S
H
U
P
E
N
U
T
N
E
M
E
R
NB/ANL
ANL
S/RF
S/RF
SWR
SWR/CAL
3
Initially, set fully clockwise so that maximum
CAL
VOL SQ DYNAMIKE
OFF MIN
voice volume is available. Dynamike may
have to be reduced in some conditions.
Setting
Dynamike
®
15
Operation
ESC
MEM SCAN
CH 9/
19
X/
DIM
SCAN
ESC
MEM SCAN
CH 9/
19
X/
DIM
SCAN
ESC
MEM SCAN
CH 9/
19
X/
DIM
SCAN
ESC
MEM SCAN
CH 9/
19
X/
DIM
SCAN
Menu Mode
Note
Use Dim/Escape button to exit
from any routine back to CB
standby mode.
Menu Mode
Used to program special features. Menu/Enter
knob is used to move cursor to desired feature
to program.
Rotate Menu/Enter knob clockwise to navigate
menu levels.
Press Menu/Enter knob to select feature to be
programmed.
Level 1:
Level 2:
DISPLAY COLOR
BRIGHTNESS
WX ALERT
WX ALERT SCAN
WX AUTO SCAN
CONTRAST
CB/ W
CB/ W
PA
PA
Level 3:
Level 4:
16
KEY TONES
RADIO CHECK
SETTINGS
EXIT
CB/ W
CB/ W
PA
PA
Operation
MEM SCAN
CH 9/
19
CB/ WX/
DIM
SCAN
MEM SCAN
CH 9/
19
CB/ WX/
DIM
SCAN
C
CH 9/
MEM SCAN
CH 9/
19
CB/ WX/
DIM
SCAN
MEM SCAN
CH 9/
19
CB/ WX/
DIM
SCAN
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.
1
2
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.
1
2
RF POWER OUTPUT
PASS
Test 3- Antenna Mismatch Warning: Press
Push-to-Talk button to check antenna/radio for
proper matching.
1
PRESS PTT
BUTTON TO
CHECK ANTENNA
2
ANTENNA
PASS
3
3
RF POWER OUTPUT
FAIL
SCAN
MEM SCAN
CB/ WX/
3
ANTENNA
FAIL
PA
Radio Check
Mode
Note
Press Dim/Escape button to
return to CB standby mode.
If 10 seconds pass or if Enter
button pressed, unit goes to
2nd test.
Note
Press Push-To-Talk within 10
seconds or unit will go to the
next test.
Note
Press Dim/Escape button to
return to CB standby mode. If
10 seconds pass or if Enter button
pressed, go to 3rd test.
Note
Press Dim/Escape button to
return to CB standby mode.
If 10 seconds pass or if Enter
button pressed, testing is
19
complete. Unit will return to
CB Standby mode.
DIM
ES
17
Operation
ESC
MEM WX !
CH 9/
19
IM
ESC
U
S
H
CH 9/
19
DIM
Setting Display
Color Mode
Note
Select EXIT to return to
main menu. Press Dim/Escape
button to return to CB mode.
Setting Display Color Mode
1
Press Menu/Enter knob to select Display Color.
2
TX
RX
DISPLAY COLOR
BRIGHTNESS
WX ALERT
MEM SCAN
CB/ WX/
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
TX
RX
SET COLOR
EXIT
MEM WX !
Press Menu/Enter knob or escape button again
to exit routine.
MEM SCAN
SCAN
PA
SCAN
CB/ WX/
PA
D
18
Operation
Setting Brightness Mode
Press Menu/Enter knob to select Set Brightness
Rotate Menu/Enter knob clockwise to Select
Brightness. Press Menu/Enter knob to select
Day-Bright. Turn Menu/Enter clockwise to
increase brightness and turn counter-clockwise to
decrease brightness.
To set the day bright level, turn the Menu/Enter
knob clockwise to a desired setting and then
press Menu/Enter. To set the Night-Dim level,
repeat instructions above then select Night-Dim.
Press Menu/Enter knob again to exit routine.
Setting Contrast Mode
Press Menu/Enter knob and rotate clockwise to
select Set Contrast. Press Menu/Enter knob
again and rotate clockwise to increase contrast,
counter-clockwise to decrease contrast.
Press Menu/Enter knob to set contrast.
Setting
Brightness
Mode
Note
If an attempt is made to
exceed the highest or lowest
brightness levels, 3 error beeps
will be heard.
Note
Exit will return to menu mode.
ESC will exit and return to CB
Standby.
Note
To select day or night levels,
press and release Dim/Escape
button once levels are set.
Note
To toggle from day to night
settings, see page 24.
Setting
Contrast Mode
Note
If an attempt is made to
exceed the highest or lowest
contrast levels, 3 error beeps
will be heard.
Press Menu/Enter knob again to exit routine.
19
Weather Auto
Operation
Weather
Information
Note
If you wish to receive a listing of NOAA ‘Weather Radio
Transmitter locations, contact
your nearest National Weather
Service Office.
Service Office, or write to:
National Weather Service
(Attn: W/OM11) NOAA
Silver Springs, MD 20910.
For ideal weather reception use
a dual band antenna (center
load/baseload).
Weather Alert
What You Should Know About Weather
If threatening weather is nearby, the National
Weather Service may broadcast a 10 second alert
tone. This tone will be heard through the CB,
even if the CB/WX Control is in the CB mode or
the unit is turned off.
This enables you to monitor CB frequencies and
still be warned by the National Weather Service
Emergency Alert. When you hear the alert, press
the CB/WX/PA button in the WX mode. You
will then be able to hear the Weather Warning
Broadcast.
Your 29 LX LE has a special auto squelch circuit
for weather transmission which disables your
squelch control.
20
R
Operation
Weather Alert Scan
The unit will continually scan all 10 WX channels for
1050 Hz tone. If the tone is detected the unit will
activate WX mode on the channel with the tone.
Default state is Off. Go to Menu mode to choose
On/Off (see page 22):
CH 9/
SCAN
CB/ WX/
PA
T BACK
19
DIM
ESC
CAL
SW
163.275
S
H
U
P
E
N
U
T
E
R
WX !
F GAIN DELTA TUNE
MEM SCAN
Weather Auto Scan
If active while in CB or PA mode, will determine
if the present WX channel is active. If the present
WX
channel is not active, will search for the strongest WX channel and auto change to that channel.
Default is off. Go to Menu mode to choose on/off
(see page 22).
Weather
Channels
What is Weather Radio?
NOAA Weather Radio (NWR) is a
service of the National Oceanic
and Atmospheric Administration
(NOAA), of the U.S. Department
of Commerce. 380 NWR stations are in operation by the
U.S. Government in addition to
several NWR stations that are
maintained by private interest
groups. The capability is to supplement warnings by sirens and
by commercial radio and television.
The 10 National Weather
Channels provide full coverage to keep you informed of
weather conditions, 24 hours a
day, 7 days a week.
21
Operation
ESC
N
CH 9/
19
IM
ESC
N
CH 9/
19
IM
ESC
N
CH 9/
19
IM
Weather Alert
Mode
Note
Press Dim/Escape
button to return to CB mode.
Setting
Weather Alert
Scan
Note
If an alert is detected the unit
will activate WX mode on the
channel with the alert. Use
Menu/Enter knob to select
On/Off and press to set.
Note
Press Dim/Escape
button to return to CB mode.
Setting Weather
Auto Scan
Note
Press Dim/Escape
button to return to CB mode.
Setting Weather Alert Mode
Turns WX Alert On/Off. Default is Off.
Press Menu/Enter knob to select Set WX Alert.
If Weather is On, WX Alert Icon will be displayed.
TX
RX
SET WX ALERT
ON
OFF
S
H
U
P
MEM WX !
E
SCAN
MEM SCAN
CB/ WX/
PA
D
Press Menu/Enter knob to select On/Off and exit
to main menu.
Setting Weather Alert Scan
Press Menu/Enter knob and rotate clockwise to
WX Alert Scan. Press Menu/Enter knob to select
On/Off.
TX
RX
WX ALERT SCAN
ON
OFF
S
H
U
P
MEM WX !
E
SCAN
MEM SCAN
CB/ WX/
PA
D
Press Menu/Enter knob to select On/Off and exit
to main menu.
Setting Weather Auto Scan
Press Menu/Enter knob and rotate clockwise to WX
Auto Scan. Press Menu/Enter knob to select On/Off.
TX
RX
WX AUTO SCAN
ON
OFF
S
H
U
P
MEM WX !
E
SCAN
MEM SCAN
CB/ WX/
PA
D
Press Menu/Enter knob to select On/Off and exit
to main menu.
22
Operation
ESC
CH 9/
19
IM
ESC
CH 9/
19
IM
CH 9/
19
IM
ESC
CH 9/
19
IM
CH 9/
19
IM
Key Tones Mode On and Off
Press Menu/Enter knob and rotate clockwise
to Set Key Tones. Press Menu/Enter to set Key
Tones On/Off.
TX
RX
SET KEY TONES
ON
OFF
SCAN
MEM SCAN
CB/ WX/
PA
Press Menu/Enter knob to select On/Off and
exit to main menu.
Software Version/Factory Settings
Displays current software version and returns
unit to original factory settings. To view software
version, rotate Menu/Enter knob clockwise to
select Settings then Software Version.
TX
RX
SET KEY TONES
RADIO CHECK
SETTINGS
TX
RX
To restore default settings, Press Menu/Enter
knob again. Rotate Menu/Enter knob clockwise
to select Settings then Go To Default.
TX
RX
TX
RX
SOFTWARE VER.
GO TO DEFAULT
SOFTWARE VER.
GO TO DEFAULT
RESTORE DEFAULT
YES
NO
Press Menu/Enter knob to restore default
settings. Choose NO to maintain present
setting with no change.
SCAN
MEM SCAN
CB/ WX/
PA
SCAN
MEM SCAN
CB/ WX/
SCAN
MEM SCAN
CB/ WX/
SCAN
MEM SCAN
CB/ WX/
PA
Key Tones
Mode
Note
Press Dim/Escape
button to return to CB mode.
D
Software
Version/Factory
Settings
D
D
Note
Default display color is green.
D
D
23
Operation
SWR
ESC
MEM SCAN
MEM WX !
CH 9/
19
CB/ WX/
DIM
SCAN
PA
NB-ANL/OFF
(Noise Blanker /
Automatic Noise
Limiter) Button
Note
The RF noise blanker is very
effective in reducing repetitive
noises such as ignition interference.
RF Gain Control
NB-ANL/OFF (Noise Blanker/Automatic
Noise Limiter) Button
NB/ANL
NB/ANL
SWR
ANL
S/RF
S/RF
RF
SWR/CAL
1
When switched to ANL the Automatic Noise
SIG
Limiter is activated. This helps reduce noise
created by the vehicle’s electronics.
When switched to NB/ANL mode the RF Noise
Blanker is also activated, providing increased
noise filtration.
When switched to OFF mode all noise
filtration will be turned off.
3
2
1.5
1
CAL
TX
RX
5
3
7
9
+30dB
S
H
U
P
E
N
U
T
N
E
M
E
R
RF Gain Control
The RF Gain is used to optimize reception in
strong or weak signal areas.
Note
The RF Gain is used to optimize
reception in weak signal areas.
1
Rotate the RF Gain knob counterclockwise to
reduce gain in strong signal areas. In weak
signal areas turn clockwise to increase gain.
24
Operation
E
CH 9/
Program Memory Channels
Set first channel. Press and hold Scan/MemScan
button. Memory icon will appear. Select second
channel, press and hold Scan/MemScan button
again until Memory icon appears. Repeat above
steps to enter up to 10 channels in memory.
CH 9/
SCAN
TX
RX
MEM
S
H
U
P
E
N
U
T
N
E
M
P
U
N
1
E
R
S
H
U
E
N
T
E
R
F GAIN DELTA TUNE
MEM WX !
F GAIN DELTA TUNE
SCAN
MEM SCAN
CB/ WX/
T BACK
Pressing the Scan/Memory Scan button
toggles from Off to Scan All Channels to
Memory Channel Only Scan and back to Off.
SCAN
MEM WX !
H
E
N
T
E
R
F GAIN DELTA TUNE
MEM SCAN
CB/ WX/
PA
T BACK
Press Dim/Escape button to end Scan and
2
return to CB mode.
MEM SCAN
CB/ WX/
PA
T BACK
PA
19
DIM
CAL
CH 9/
ESC
SWR
19
DIM
ESC
SWR
CAL
19
DIM
ESC
SWR
CAL
Program Memory
Channels
Note
The radio should be
squelched before scan
features are activated.
Note
Keying the microphone will
stop the scan feature.
Note
If more than 10 channels are
attempted to be programmed,
3 error beeps will be heard and
“Memory Full” will be displayed
for 10 seconds or until any
button is pushed.
Note
To remove a channel from
memory, go to the unwanted
memory channel then press
and hold the scan button until
the MEM icon turns off.
Note
If in WX mode the unit will
scan Weather channels.
25
Operation
R
ESC
CH 9/
19
DIM
ESC
S
CH 9/
19
DIM
Scan CB
Channels
Scan Memory
Channels
Dimmer Control
Scan CB Channels
To scan all 40 CB channels, the unit must be
squelched. Press and release Scan/Mem Scan
button once.
CB SCAN
27.405
Scan Memory Channels
To scan memory channels, press and release
Scan/Mem Scan button twice.
CB MEM SCAN
27.405
MEM
Dimmer Control
CH 9/
SCAN
CB/ WX/
PA
19
DIM
ESC
MEM SCAN
MEM WX !
H
E
N
T
E
1
Press Dim/Esc button to toggle between day
and night settings.
See setting instructions on page 19.
26
SCAN
MEM SCAN
CB/ WX/
PA
SCAN
MEM SCAN
CB/ WX/
PA
Operation
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
G AT E C L OS ED
Setting Squelch
Squelch is the “control gate” for incoming signals.
1
Full clockwise rotation closes the gate
allowing only very strong signals to enter.
Setting Squelch
Gate closed
Gate open
STRONG SIGNALS
STRONG SIGNALS
STRONG SIGNALS
MEDIUM SIGNALS
MEDIUM SIGNALS
MEDIUM SIGNALS
WEAK SIGNALS
WEAK SIGNALS
WEAK SIGNALS
2
Full counterclockwise rotation opens the “gate”
allowing all signals in.
27
NOISE
NOISE
NOISE
G AT E
O PE N
Operation
Setting Squelch
Continued
Gate set to Desired
Squelch Setting (DSS)
STRONG SIGNALS
MEDIUM SIGNALS
WEAK SIGNALS
NOISE
S/RF Meter
3
To achieve the Desired Squelch Setting (DSS),
turn the Squelch control counterclockwise
until you hear noise. Now turn the control
G AT E
clockwise just until the noise stops. This is the
DSS setting.
S/RF Meter
This meter swings proportionately to the RF
output (outgoing signal) while transmitting.
1
The S/RF-SWR-CAL button must be in the
S/RF mode.
28
Operation
External Speaker
The external speaker jack is used for remote
receiver monitoring.
1
Connect an external speaker to the external
speaker jack on the rear panel.
External Speaker
Note
The external speaker should
have 8-ohm impedance and
be rated to handle at least 4.0
watts. When the external speaker is plugged in, the internal
speaker is automatically disconnected. See accessory page 41.
Note
Cobra external speakers are
rated at 10 watts.
29
Operation
E
PA (Public
Address)
Note
Speaker should have 8-ohm
impedance and be rated to
handle at least 4.0 watts.
Note
The speaker should be directed
away from the microphone to
prevent acoustic feedback.
Note
Activity on the CB channel will
be heard through the PA speaker. Adjust Volume Control to a
normal listening level.
PA (Public Address)
1
Connect an external PA speaker to the PA jack
on the rear panel.
SCAN
MEM SCAN
CB/ WX/
S
H
U
P
E
N
U
N
T
E
R
F GAIN DELTA TUNE
PA
T BACK
CH 9/
19
DIM
ESC
SWR
CAL
2
Press CB/WX/PA button to select PA.
30
PUSH &
HOLD
3
Push and hold microphone button and speak
in a normal voice. Your voice will now transmit
on the PA speaker.
Operation
4
Adjust PA speaker volume with the
Dynamike® control.
31
Home And Office Set-Up
Base Station
Operation
(From 120V AC
House Current)
Warning!
Do not attempt to operate this
transceiver by connecting it
directly to 120V AC.
Note
For further information call
Cobra Customer Service
1.773.889.3087.
Base Station Operation
(From 120V AC House Current)
To operate your transceiver from home or office
you will need a 13.2 volt DC Power Pack rated at
a minimum of 2 amps, and a properly installed
base station antenna.
+ —
1
Simply connect the red (+) and black (-)
leads of the transceiver to the corresponding
terminals of the power pack.
32
Temporary Mobile Set-Up
2
Plug power cable into back of unit marked
“Power”. Be sure to observe polarity markings.
3
Connect properly installed and matched base
station antenna.
Temporary Mobile Operation
For temporary mobile operation you may want
to purchase an optional cigarette lighter adapter
from your COBRA dealer. This adapter and a
magnetic mount antenna allow you to quickly
“install” your transceiver for temporary use.
Temporary
Mobile Set-Up
33
How Your CB Can Serve You
• Warn of traffic problems
• Provide weather and road data
• Provide help in event of an emergency
• Provide direct contact with home or office
• Assist police by reporting erratic drivers
• Get “local information” to find destination
• Communicate with family and friends
• Suggest spots to eat and sleep
• Keep you alert while traveling
A Few Rules
You Should
Know
A Few Rules You Should Know
A. Conversations cannot last more than 5 minutes
with another station. A one minute break is
required to let others use the channel.
B. You cannot blast others off the air by use of
illegally amplified transmitters or illegally
high antennas.
C. You cannot use CB to promote illegal activities.
D. Profanity is not allowed.
E. You may not transmit music with a CB.
F. Selling of merchandise and/or services is
prohibited.
Channel 9
Emergency
Messages
Note
If no response on channel 9,
try channels 19 or 14.
1. Set to channel 9 for emergencies
Be sure antenna is properly connected.
2. CB Distress Data
When transmitting an emergency, you should
request a “REACT BASE” and provide the CB
distress data (called CLIP):
C all Sign Identify yourself.
L ocation Be exact.
I njuries Number. Type. Trapped?
P roblem Give details and help needed.
Transmit CLIP repeatedly so any monitor can assist.
34
How Your CB Can Serve You
The FCC gives these examples of permitted and
prohibited messages for channel 9. These are
only guidelines and not all-inclusive:
Permitted Example Message
Yes “Tornado sighted six miles north
of town.”
No “Post number 10.
No tornado sighted.”
Yes “Out of gas on I-95 at mile
marker 211.”
No “Out of gas in my driveway.”
Yes “Four car accident on I-94 at
Exit 11. Send police and
ambulance.”
No “Traffic moving smoothly on I-94.”
Yes “Weather Bureau has issued
thunderstorm warning.
Bring sailboat into port.”
No “Attention motorists.
Weather Bureau advises snow
tomorrow will accumulate
4 to 6 inches.”
Yes “Fire in building at 539 Main,
Evanston.”
No “Halloween patrol number 3.
All quiet.”
35
How Your CB Can Serve You
CB 10-Codes
Citizen Bands have adopted the “10-CODES” for
standard questions and answers. These codes
provide quick and easy communication, especially
in noisy areas. Following are some of the more
common codes and meanings:
Code Meaning
10-1 Receiving poorly
10-2 Receiving well
10-3 Stop transmitting
10-4 OK, message received
10-5 Relay message
10-6 Busy, stand by
10-7 Out of service, leaving
10-8 In service, subject to call
10-9 Repeat message
10-10 Transmission completed standing by
10-11 Talking too rapidly
10-12 Visitors present
10-13 Advise weather/roads
10-16 Make pick up at
10-17 Urgent business
10-18 Anything for us?
10-19 Return to base
10-20 My location is
10-21 Call by phone
10-22 Report in person to
10-23 Stand by
10-24 Completed last assignment
10-25 Can you contact
10-26 Disregard last info
10-27 Moving to channel
10-28 Identify your station
36
Code Meaning
10-29 Time is up for contact
10-30 Does not conform to FCC rules
10-33 Emergency traffic
10-34 Trouble at this station
10-35 Confidential information
10-36 Correct time is
10-37 Wrecker needed at
10-38 Ambulance needed
10-39 Message delivered
10-41 Turn to channel
10-42 Traffic accident at
10-43 Traffic tie up at
10-44 Have a message for
10-45 All units within range please report
10-50 Break channel
10-60 What is next message number?
10-62 Unable to copy. Use phone
10-63 Net directed to
10-64 Net clear
10-65 Awaiting your next message/assignment
10-67 All units comply
10-70 Fire at
10-71 Proceed, transmission in sequence
10-77 Negative contact
10-81 Reserve hotel room for
10-82 Reserve room for
10-85 My address is
10-91 Talk closer to mic
10-93 Check my frequency on this channel
10-94 Give me a long count
10-99 Mission completed, all units secure
10-200 Police needed at
37
Frequency Ranges
The Cobra 29 LX LE transceiver represents one of
the most ad vanced AM two-way radios used as a
Class D station in the Citizens Radio Service. This
unit features advanced Phase Lock Loop (PLL)
circuitry providing complete cov er age of all 40 CB
chan nels.
Channel Channel
CB Freq. CB Freq. WX Freq.
Channel In MHz Channel In MHz Channel In MHz
1 26.965 21 27.215 1 162.550
2 26.975 22 27.225 2 162.400
3 26.985 23 27.255 3 162.475
4 27.005 24 27.235 4 162.425
5 27.015 25 27.245 5 162.450
6 162.500
6 27.025 26 27.265 7 162.525
7 27.035 27 27.275 8 161.650
8 27.055 28 27.285 9 161.775
9 27.065 29 27.295 10 163.275
10 27.075 30 27.305
11 27.085 31 27.315
12 27.105 32 27.325
13 27.115 33 27.335
14 27.125 34 27.345
15 27.135 35 27.355
16 27.155 36 27.365
17 27.165 37 27.375
18 27.175 38 27.385
19 27.185 39 27.395
20 27.205 40 27.405
38
29 LX LE Specifications
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)
39
Limited Two Year Warranty
COBRA ELECTRONICS CORPORATION warrants that its
Cobra CB Radios, and the com po nent parts thereof, will be
free of defects in workmanship and materials for period
of two (2) years from the date of first consumer purchase.
This war ran ty may be enforced by the first consumer
pur chas er, pro vid ed that the product is utilized within
the U.S.A.
Cobra will, without charge, repair or replace, at its option,
de fec tive CB radios, products or com po nent parts upon
de liv ery to the Cobra factory Service Department, ac compa nied by proof of the date of first consumer pur chase,
such as a du pli cat ed copy of a sales receipt.
You must pay any initial shipping charges required to ship
the product for warranty service, but the return charges
will be at Cobra’s expense, if the product is repaired or
replaced under warranty.
Exclusions: This limited warranty does not apply; 1) to any
product dam aged by accident; 2) in the event of misuse or
abuse of the product or as a result of un au tho rized alterations or repairs; 3) if the serial number has been altered,
defaced or re moved; 4) if the owner of the product resides
outside the U.S.A.
Cobra Electronics
Corporation
6500 West Cortland Street
Chicago, Illinois 60707
www.cobra.com
All implied warranties, including war ran ties of
mer chant abil i ty and fitness for a par tic u lar purpose
are limited in duration to the length of this warranty.
Cobra shall not be liable for any incidental, con se quential or oth er dam ag es; including, without lim i ta tion,
damages re sult ing from loss of use or cost of in stal la tion.
Some states do not allow limitations on how long an
implied warranty lasts and/or do not allow the ex clu sion
or limitation of incidental or con se quen tial dam ag es, so
the above lim i ta tions may not apply to you.
40
Optional Accessories
You can find quality Cobra products and accessories at your local Cobra dealer, or in the
U.S.A., you can order directly from Cobra. See ordering info on page 38.
Replacement DC Power Cord
For in vehicle use
426-002-N-001
Replacement Microphone
Bracket
For in vehicle use
741-080-9-001
Dynamic External
Speaker
HG S100
Replacement Mounting
Bracket
For in vehicle use
251-353-9-001
21” Base Loaded Magnet
Mount Antenna
HG A1000
Noise Canceling
External Speaker
HG S300
Replacement Thumb Screws
For in vehicle use
634-081-9-001
38” Base Loaded Magnet
Mount Antenna
HG A1500
Noise Canceling
With Talk Back
External Speaker
HG S500
41
If You Think You Need Service
For technical assistance, please call our Automated Help Desk which can assist
you by answering the most frequently asked questions about Cobra products.
(773) 889-3087
A Consumer Service Representative can be reached through this same number
8:00 am - 5:30 pm, Monday through Friday, Central Time.
Technical assistance is also available on-line in the Frequently Asked Questions (FAQ) section at
www.cobraelec.com or by e-mail to productinfo@cobra.com
If you think you need service call 1.773.889.3087
“If your product should require factory service please call Cobra first before sending your unit in.
This will ensure the fastest turn-around time on your repair.”
You may be asked to send your unit to the Cobra factory. It will be necessary to furnish the following in order to have the product serviced and returned.
1. For Warranty Repair include some form of proof-of-purchase, such as a mechanical reproduction
or carbon or a sales receipt. If you send the original receipt it cannot be returned.
2. Send the entire product.
3. Enclose a description of what is happening with the unit. Include a typed or clearly print name
and address of where the unit is to be returned.
4. Pack unit securely to prevent damage in transit. If possible, use the original packing material.
5. Ship prepaid and insured by way of a traceable carrier such as United Parcel Service (UPS) or First
Class Mail: to avoid loss in transit to: Cobra Factory Service, Cobra Electronics Corporation, 6500
W. Cortland St., Chicago, IL 60707.
6. If the unit is in warranty, upon receipt of your unit it will either be repaired or exchanged
depending on the model. Please allow approximately 3 to 4 weeks before contacting us for
status. If the unit is out of warranty a letter will automatically be sent informing you of the
repair charge or replacement charge. If you have any questions, please call 1.773.889.3087 for
assistance.
24 hours a day, 7 days a week.
Trademark Info
Cobra®, Dynamike®, Nothing Comes Close to a Cobra® and the snake design are registered
trademarks of Cobra Electronics Corporation, USA.
Cobra Electronics Corporation™ is a trademark of Cobra Electronics Corporation, USA.
29 LX LE
Operating Instructions for your
Cobra 29 LX LE
50th Anniversary CB Radio
©2010 Cobra Electronics Corporation
Printed in China
Part No. 480-647-P-001 Version B
Limited Edition
Nothing Comes Close to a Cobra®
The CB Story
cb tranceiver
The Citizens Band lies between the shortwave
broadcast and 10-meter Amateur radio bands,
2
1
and was established by law in 1949. The Class D
two-way communications service was opened in
1959. (CB also includes a Class A citizens band
and Class C remote control frequencies.)
NB/ANL
3
2
1.5
NB/ANL
CAL
SWR
ANL
S/RF
S/RF
RF
SWR
CAL
5
3
7
9
1
SIG
SWR/CAL
+30dB
VOL SQ DYNAMIKE RF GAIN DELTA TUNE
OFF MIN
3
4
5
Operating Instructions for your
Cobra 29 LX LE
50th Anniversary CB Radio
©2010 Cobra Electronics Corporation
Printed in China
Part No. 480-647-P-001 Version A
Nothing Comes Close to a Cobra®
6
TX
RX
S
H
U
P
E
N
U
N
E
M
29 LX LE
Limited Edition
MEM WX !
T
E
R
MIN OFF
CH 9/
SCAN
19
MEM SCAN
CB/WX/
PA
T BACK
MAX
FCC Regulations
DIM
ESC
FCC regulations permit only “transmissions”
SWR
CAL
(one party to another) rather than “broadcasts”
(to a wide audience). Thus, advertising is not
allowed on CB Channels because that is “broadcasting.”
FCC Warnings
All transmitter adjustments other than those
supplied by the manufacturer as front panel
operating controls, must be made by, or under
the supervision of, the holder of an FCC-issued
General Radio-Telephone Operator’s License.
Replacement or substitution of transistors, regular diodes or other parts of a unique nature, with
parts other than those recommended by Cobra,
may cause violation of the technical regulations
of Part 95 of the FCC Rules, or violation of Type
Acceptance requirements of Part 2 of the Rules.
You should read and understand Part 95 (included
with this unit) of the FCC Rules and Regulations,
before operating your Cobra radio, even though
the FCC no longer requires you to obtain an operator’s license.
What’s Included with Your 29 LX LE
1. CB transceiver 5. Operating Manual
2. Microphone 6. DC power cord
3 Transceiver bracket 7. FCC rules (not shown)
4. Microphone bracket 8. Certificate of Authenticity
(not shown)
A1
Controls and Indicators
Front Side
1. 4-Pin Microphone
Connector
2. Power On/Off, Volume
3. Squelch
4. Dynamike
5. Menu/Enter/Channel
Selector
6. RF Gain
7. Delta Tune
8. Talk Back Control
9. SWR Calibration
10. Dim/Escape Button
11. Channel 9/Channel 19
Button
12. Scan/Memory Scan
13. CB/WX Weather/PA Button
14. LCD Display
15. RX (Receive)/TX (Transmit),
Indicators
16. Signal Strength Meter
17. NB/ANL Button
18. S/RF SWR CAL Button
19. 1Microphone
Back Side
20. Public Address Speaker
Jack
21. External Speaker Jack
22 Antenna Connector
23. Power Jack
18
1
17
NB/ANL
S/RF
SWR/CAL
OFF MIN
16
3
2
1.5
NB/ANL
SWR
ANL
S/RF
RF
SWR
CAL
5
3
7
9
1
SIG
VOL SQ DYNAMIKE RF GAIN DELTA TUNE
2
+30dB
4
3
FCC ID:BBO3K229LTD
COBRA
MADE IN CHINA
19
13
7
12
SCAN
MEM SCAN
CB/WX/
PA
T BACK
CH 9/
11
19
DIM
10
ESC
SWR
CAL
8
15
14
CAL
TX
RX
MEM WX !
S
H
U
P
E
N
U
T
N
E
E
R
M
MAX
MIN OFF
5
6
9
21
20
ANT
22
PA.SP. EXT.SP.
+ POWER–
23
A2
Our Thanks to You
Assistance
Warranty
Customer
Assistance
Thank you for purchasing the Cobra 29 LX LE
50th Anniversary Limited Edition CB Radio.
Properly used, this Cobra product will give you
many years of reliable service.
Customer Support
Should you encounter any problems with the
product or not understand its many features,
please refer to this owner’s manual. If , after
referring to the manual, you still need help,
call Cobra Customer Service at 773.889.3087.
NOTE
This device complies with part 15 of the FCC Rules. Operation
is subject to the following two (2) conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received,
including interference that may cause undesired operation.
The manufacturer is not responsible for any radio or tv interference caused by unauthorized modifications to this equipment. Such modifications could void the user’s authority to
operate the equipment.
Cobra Customer Service
Live operators are available
M-F 8:00 am - 5:30 pm Central
Time at: 773-889-3087
Automated Technical
Assistance available 24 hours a
day, seven days a week. E-mail
questions to: productinfo@
cobra.com
Cobra on the World Wide Web:
Frequently Asked Questions
(FAQ) can be found on-line at:
www.cobra.com
A3
Optional Accessories
Ordering From U.S.A.
Call 773-889-3087 for pricing or visit www.cobra.com.
For Credit Card Orders
Call 773-889-3087 [Press one from the main menu] 8:00 a.m.
to 5:30 p.m. Central Time, Monday through Friday.
Make Check or Money Order Payable To
Cobra Electronics, Attn: Accessories Dept.,
6500 West Cortland Street, Chicago, IL 60707 U.S.A.
To Order Online
Please visit our website: www.cobra.com
42
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