How to Use Your
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 Interface .................................................................7
Operating Your 29 LTD Classic
Turning On Your CB........................................................................8
Setting Channel Selector.............................................................9
Calibrate For SWR (Standing Wave Ratio)..............................10
To Receive..........................................................................................13
Selecting a Channel.......................................................................14
S-Meter ...............................................................................................14
NB-ANL/ANL/Off (Noise Blanker/Automatic.........................15
Noise Limiter Switch)
Bright/Dim Switch..........................................................................16
RF Gain Control................................................................................17
Setting Delta-Tune.........................................................................18
Setting Squelch ...............................................................................18
To Transmit ........................................................................................20
Setting Dynamike...........................................................................20
Transmit..............................................................................................21
RF Meter.............................................................................................22
External Speaker .............................................................................23
PA (Public Address) ........................................................................24
Home And Office Set-Up .............................................................26
Temporary Mobile Set-Up...........................................................27
How Your CB Can Serve You..........................................................28
A Few Rules You Should Know ..................................................28
Channel 9 Emergency Messages..............................................28
CB 10 Codes......................................................................................30
Frequency Ranges.............................................................................32
29 LTD Classic Specifications .......................................................33
Warranty Information.....................................................................34
Notes........................................................................................................35
Optional Accessories .......................................................................38
Order Form ...........................................................................................40
If You Think You Need Service...................................Back Cover
Cobra 29 LTD Classic
Features of This Product
• 40 CB Radio Channels
• Heavy-Duty Dynamic
Microphone
• Full 4 Watts AM RF Power Output
• SWR Calibration Meter
• Instant Channel 9
• 4-Pin Microphone Connector
• Delta -Tune
• Switchable Automatic Noise
Limiter & Noise Blanker
• Adjustable Dynamike Boost
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK DO NOT REMOVE COVER (OR BACK)
NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL
!
!
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
Installation
ANT
PA.SP. EXT.SP.
+POWER –
DATE OF
MFG :JUNE 98
FCC ID:BBO3K229LTD
COBRA
MADE IN CHINA
SERIAL NO.:806135776
PRECISION ENGINEERED PRODUCT OF
COBRA ELECTRONICS CORP. CHICAGO, ILL.60707
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.
3
Connect the antenna cable plug to the receptacle marked “ANT” on the back of the unit.
continued
Note
In positive ground vehicles the
red wire goes to the chassis and
the black wire is connected to
the ignition switch.
3
Installation
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.
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
ANT
PA.SP. EXT.SP.
+ POWER–
FCC ID:BBO3K229LTD
COBRA
MADE IN CHINA
SIG 1 3 5 7 9 +30dB
2 3 CAL
RF
SWR
RF
DYNAMIKE
RFGAIN
D
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
C
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
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 side of unit and install unit on
bracket securely.
5
ANT
PA.SP. EXT.SP.
+ POWER–
DATE OF
MFG :JUNE 98
FCC ID:BBO3K229LTD
COBRA
MADE IN CHINA
SERIAL NO.:806135776
PRECISION ENGINEERED PRODUCT OF
COBRA ELECTRONICS CORP. CHICAGO, ILL.60707
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..
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. 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 LTD Classic 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
DYNAMIKE
RFGAIN
D
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
B
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
RF
DYNAMIKE
RFGAIN
DELTATUNE
S
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
R
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
Turning On
Turning On
Make sure the power cord,antenna and microphone are connected to their proper connectors
before starting.
1
The CB/PA button should be in the
CB position.
2
Rotate the On/Off Volume knob clockwise to
a normal listening level.
8
Operation
RFGAIN
DELTATUNE
SWR CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
Setting Channel Selector
1
Select one of forty channels and adjust
volume.The selected channel is indicated by
the LED readout directly above the channel
selector knob
Setting Channel
Selector
9
RFGAIN
DELTATUNE
SWR CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
Operation
DYNAMIKE
RFGAIN
D
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
B
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
Calibrate For
SWR (Standing
Wave Ratio)
Note
Antenna Indicator LED will
illuminate when TX if SWR is
high.
Calibrate for SWR (Standing Wave Ratio)
SWR calibration is done to properly adjust the
length of the antenna and to monitor the quality
of the coaxial cable and all RF connections.
This calibration is critical in order to achieve optimum performance.
1
Select channel 20.
2
Switch to the CAL position.
10
3
PUSH &
HOLD
RFGAIN
DELTATUNE
SWR CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
SIG 1 3 5 7 9 +30dB
2 3 CALSWR
RF
Push and hold
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).
mic button.
4
While holding mic
button adjust the
SWR CAL knob so the
meter needle swings
to the CAL ▼ mark on
the meter (located on the right).
continued
11
Operation
DYNAMIKE
RFGAIN
D
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
B
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
Note
The reading will be slightly higher on Channels 1 and 40 compared to Channel 20.
Note
When switched to SWR position
the meter needle 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 relcalibration steps.
5
While still holding down the mic button, set
the S/RF SWR CAL switch to the SWR position,
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.
12
Operation
RF
DYNAMIKE
RFGAIN
DELTATUNE
S
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
R
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
To Receive
1
Rotate the On/Off Volume knob clockwise
the green RT/TX LED will be illuminated.
To Receive
13
Operation
DELTATUNE
SWR CAL
BRT
DIM
CH9
NOR
RX/TX
DYNAMIKE
R
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
C
SQUELCHVOLUME
SIG 1 3 5 7 9 +30dB
2 3 CALSWR
RF
Selecting A
Channel
S-Meter
Selecting A Channel
1
Switch to NOR to select desired channel.
S-Meter
Swings proportionately to strength of incoming
signal when receiving.
1
The S/FR-SWR-CAL switch must be in the
S/RF position to read the meter.
14
Operation
DYNAMIKE
RFGAIN
D
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
B
D
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
NB-ANL/ANL/OFF (Noise
Blanker/Automatic Noise Limiter) Switch
1
When switched to ANL the Automatic Noise
Limiter is activated.This helps reduce noise
created by the vehicle’s electronics.
When switched to NB/ANL position the RF
Noise Blanker is also activated,providing
increased noise filtration.
When switched to OFF position all noise
filtration will be turned off.
NB-ANL/ANL/
OFF (Noise
Blanker/
Automatic
Noise Limiter)
Switch
Note
The RF noise blanker is very
effective in reducing repetitive
noises such as ignition interference.
15
Operation
IN
DELTATUNE
SWR CAL
BRT
DIM
CH9
NOR
RX/TX
Bright/Dim
Switch
Bright/Dim Switch
1
Switch to BRT or DIM to control brightness
of the channel indicator and multi-function
meter for day or nighttime driving.
16
Operation
DYNAMIKE
RFGAIN
DELTATUNE
S
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
R
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
RF Gain Control
The RF Gain is used to optimize reception in
strong or 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.
RF Gain Control
Note
The RF Gain is used to optimize
reception in weak signal areas.
Turn counterclockwise to reduce
gain.
17
Operation
DYNAMIKE
RFGAIN
DELTATUNE
SWR CAL
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
MIN MAX MIN MAX
SQUELCH
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
G AT E C LO S ED
DYNAMIKE
RFGAIN
DELTATUNE
SWR CAL
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
Setting DeltaTune
Setting Squelch
Gate closed
Setting Delta-Tune
Delta-Tune functions as a “fine tune”control
enabling you to capture a more readable signal,
as well as eliminate adjacent channel interference.
1
Rotate Delta-Tune knob to the center position for optimum tuning.
Setting Squelch
Squelch is the “control gate” for incoming signals.
1
Full clockwise rotation closes the gate
allowing only very strong signals to enter.
18
2
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
G AT E
O PEN
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
G AT E
DYNAMIKE
RFGAIN
DELTATUNE
SWR CAL
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
DYNAMIKE
RFGAIN
DELTATUNE
SWR CAL
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
Full counterclockwise rotation opens the
“gate” allowing all signals in.
Operation
Gate open
Gate set to Desired
Squelch Setting (DSS)
3
To achieve the Desired Squelch Setting (DSS),
turn the Squelch control
until you hear noise. Now turn the control
clockwise just until the noise stops. This is the
DSS setting.
counterclockwise
19
Operation
RFGAIN
DELTATUNE
SWR CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
DYNAMIKE
RFGAIN
DELTATUNE
SWR CAL
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
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.
Setting
Dynamike
To Transmit
1
Select desired channel.
Setting Dynamike
This controls the microphone sensitivity
(outgoing audio level).
20
1
Initially,set fully clockwise so that maximum voice volume is available.Dynamike
may have to be reduced in some conditions.
Operation
PUSH &
HOLD
Transmit
1
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.
Transmit
21
Operation
DYNAMIKE
RFGAIN
DELTATUNE
SWR CAL
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
SQUELCH
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CALSWR
RF
RF Meter
RF Meter
This meter swings proportionately to the RF
output (outgoing signal) while transmitting.
1
The S/RF-SWR-CAL switch must be in the
S/RF position.
22
Operation
ANT
PA.SP. EXT.SP.
+ POWER –
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.
Note
Cobra external speakers are
rated at 10 watts.
23
Operation
DYNAMIKE
RFGAIN
DELTATUNE
SWR CAL
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
ANT
PA.SP. EXT.SP.
+ POWER –
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
When the volume control is
rotated clockwise, activity on
the CB channel will be heard
through the PA speaker.
PA (Public Address)
1
Connect an external PA speaker to the PA jack
on the rear panel.
2
Set CB/PA switch to PA position.
24
3
DYNAMIKE
RFGAIN
DELTATUNE
SWR CAL
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
PUSH &
HOLD
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.
25
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 120 vac.
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 13.8 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.
26
Temporary Mobile Set-Up
ANT
PA.SP. EXT.SP.
+POWER–
DATE OF
MFG :JUNE 98
FCC ID:BBO3K229LTD
COBRA
MADE IN CHINA
SERIAL NO.:806135776
PRECISION ENGINEERED PRODUCT OF
COBRA ELECTRONICS CORP. CHICAGO, ILL.60707
ANT
PA.SP. EXT.SP.
+ POWER–
FCC ID:BBO3K229LTD
COBRA
MADE IN CHINA
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 cigar 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
27
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.
28
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.”
29
How Your CB Can Serve You
CB 10-Codes
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
30
How Your CB Can Serve You
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
31
Frequency Ranges
The COBRA 29 LTD Classic transceiver represents
one of the most advanced 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 coverage of all 40 CB
channels.
Channel Channel
CB Freq. CB Freq.
Channel In MHz Channel In MHz
1 26.965 21 27.215
2 26.975 22 27.225
3 26.985 23 27.255
4 27.005 24 27.235
5 27.015 25 27.245
6 27.025 26 27.265
7 27.035 27 27.275
8 27.055 28 27.285
9 27.065 29 27.295
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
32
29 LTD Classic Specifications
GENERAL
CHANNELS . . . . . . . . . . . . . . . . . . . . . . . . CB - 40 CH
FREQUENCY RANGE. . . . . . . . . . . . . . . . CB - 26.965 TO 27.405 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 . . . . . . . . . . . . . . . . . . . 13.8VDC nom. (positive or negative ground)
CURRENT DRAIN TRANSMIT: AM FULL MOD., 1.5A
SIZE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5/8”D X 7-9/32”W X 2-13/63” H
WEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 LBS.
ANTENNA CONNECTOR . . . . . . . . . . . .UHF; SO-239
METER . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ILLUMINATED; INDICATES RELATIVE
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 10DB (S+N) /N
SELECTIVITY . . . . . . . . . . . . . . . . . . . . . . .6 DB @ 7 KHZ, 60 DB @ 10KHZ
IMAGE REJECTION . . . . . . . . . . . . . . . . . .80 DB, TYPICAL
ADJACENT-CHANNEL REJECTION . . .60 DB,T YPICAL
IF FREQUENCIES . . . . . . . . . . . . . . . . . . .DOUBLE CONVERSION: 1ST: 10.695 MHZ
AUTOMATIC GAIN CONTROL (AGC) .LESS THAN 10 DB CHANGE IN AUDIO
RF GAIN CONTROL . . . . . . . . . . . . . . . . .ADJUSTABLE FOR OPTIMUM SIGNAL
NOISE BLANKER . . . . . . . . . . . . . . . . . . . .RF T YPE
SQUELCH . . . . . . . . . . . . . . . . . . . . . . . . . .ADJUSTABLE;THRESHOLD LESS THAN 1µV
AUDIO OUTPUT POWER . . . . . . . . . . . .4 WATTS
FREQUENCY RESPONSE . . . . . . . . . . . .300 TO 3000 HZ
DISTORTION . . . . . . . . . . . . . . . . . . . . . . .LESS THAN 5% @3 WATTS @ 1000 HZ
BUILT-IN SPEAKER . . . . . . . . . . . . . . . . . .8 OHMS, 5W
EXTERNAL SPEAKER (NOT SUPPLIED) .8 OHMS; DISABLES INTERNAL SPEAKER
PA SYSTEM
POWER OUTPUT . . . . . . . . . . . . . . . . . . .4 WATTS INTO EXTERNAL SPEAKER
EXTERNAL SPEAKER FOR PA . . . . . . . .8 OHMS, WHEN PA-CB SWITCH IS IN PA,
(NOT SUPPLIED) . . . . . . . . . . . . . . . . . . .THE PA SPEAKER ALSO MONITORS THE
(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)
(MAXIMUM) RECEIVE: SQUELCHED, 0.3A;
FULL AUDIO OUTPUT,1.2A (NOMINAL)
POWER OUTPUT AND RECEIVED
SIGNAL STRENGTH
2ND: 455 KHZ
OUTPUT FOR INPUTS FROM 10 TO 50,000
MICROVOLTS
RECEPTION
WHEN CONNECTED
RECEIVER; SEPARATE JACK PROVIDED
33
RF
Limited Two Year Warranty
22
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aa
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aa
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QQUUALITY SEALALITY SEAL
COBRA ELECTRONICS CORPORATION warrants that its
COBRA CB Radios, and the component 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 warranty may be enforced by the first consumer
purchaser,provided that the product is utilized within
the U.S.A.
COBRA will, without charge, repair or replace, at its option,
defective CB radios,products or component parts upon
delivery to the COBRA factory Service Department, accom-
Cobra Electronics
Corporation
6500 West Cortland Street
Chicago,Illinois 60707
panied by proof of the date of first consumer purchase,
such as a duplicated 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 damaged by accident; 2) in the event of misuse or
abuse of the product or as a result of unauthorized alterations or repairs; 3) if the serial number has been altered,
defaced or removed; 4) if the owner of the product resides
outside the U.S.A.
All implied warranties,including warranties of
merchantability and fitness for a particular purpose
are limited in duration to the length of this warranty.
COBRA shall not be liable for any incidental,consequential or other damages; including,without limitation, damages resulting from loss of use or cost of installation.
Some states do not allow limitations on how long an
implied warranty lasts and/or do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations may not apply to you.
34
RF
Notes
Notes
35
Notes
Notes
36
Notes
Notes
37
Optional Accessories
Replacement DC Power Cord
For in vehicle use
426-002-N-001 $7.50
Replacement Microphone
Bracket
For in vehicle use
741-080-9-001 $0.45
39” Full Range Base Load,
Magnetic Mount Antenna
For in vehicle use
AT 70 $24.95
Replacement Mounting
Bracket
For in vehicle use
251-353-9-001 $4.50
28” Full Range Center Load,
Magnetic Mount Antenna
For in vehicle use
AT 35 $19.95
44” Full Rnage,Center Load,
Dual Band CB/WX Antenna
Allows greater transmission
range while in a moving vehicle.
ATW-400 $27.95
Replacement Thumb Screws
For in vehicle use
634-081-9-001 $0.60
25” Glass Mount Antenna
For in vehicle use
AT 55 $27.95
Replacement Dynamic
Microphone
For in vehicle use
CA 73 $12.95
38
Optional Accessories
NOISE CANCELLING AND TALK BACK VOLUME
NOISE CANCELLING
NOISE CANCELLING AND TALK BACK VOLUME
NOISE CANCELLING
NOISE CANCELLING AND TALK BACK VOLUME
Power Microphone
For in vehicle use
CA 75 $21.95
Dynamic External Speaker
For in vehicle use
CS 100 $14.95
Noise Canceling/Power
Microphone
For in vehicle use
CA 77 $24.95
Noise Canceling External
Speaker
For in vehicle use
CS 300 $19.95
Echo/Noise Canceling
Microphone
For in vehicle use
CA 79 $59.95
Dynamic Noise Canceling
With Talk Back External
Speaker
For in vehicle use
CS 500 $24.95
You Can Find These Fine Accessories At Your Local
Cobra CB Dealer
If you wish, you can order directly from Cobra.
Order by phone
Call 1.773.889.3087
(Press 1 from the main menu) 8 a.m.-8 p.m. M-F CST.
Order by mail or fax
Please fill out order form on next page, and mail/fax directly
to Cobra.
39
Accessory Order Form
Item # Description Cost Ea. Qty. Amount
426-002-N-001 Replacement DC Power Cord $7.50
251-353-9-001 Replacement Mounting Bracket $4.50
634-081-9-001 Replacement Thumb Screws $0.60
741-080-9-001 Replacement Microphone Bracket $0.45
AT 35 28”Full Range Center Load,
AT 55 25”Glass Mount Antenna $27.95
AT 70 39”Full Range Base Load,
ATW 400 44” Full Range,Center Load,
CA 73
CA 75 Power Microphone $21.95
CA 77
CA79 Echo/Noise Canceling Microphone $59.95
CS 100 Dynamic External Speaker $14.95
Shipping & Handling
Amount of Shipping/
Order Handling
$25.00 and under $4.75 minimum
$25.01-$40.00 $6.95
$40.01-$80.00 $9.00
$80.01-$120.00 $10.00
$120.01-$160.00 $11.50
$160.01 and up $14.25
For AK,HI and PR please add
an additional $15.00 for UPS
shipments.
CS 300 Noise Canceling External Speaker $19.95
CS 500 Dynamic Noise Canceling
Prices subject to change without notice.
Tax Table
Illinois residents add 7%
Cook Co.residents add .75% (7.75% total)
Chicago residents add 1% (8.75% total)
Indiana residents add 5%
For credit card orders fill out order form
and fax to: 1.773.622.2269
or call 1.773.889.3087
(Press 1 from the main menu)
Please print clearly
Name
Address (No P.O.Box)
City State
Zip
Telephone ( )
Credit Card No. Exp.Date
Customer Signature
Circle One: Visa MasterCard Discover
Allow 4 to 6 weeks for delivery.Offer valid in Continental U.S.only.
Magnetic Mount Antenna $19.95
Magnetic Mount Antenna $24.95
Dual Band CB/WX Antenna $27.95
Replacement Dynamic Microphone
Noise Canceling/Power Microphone
$12.95
$24.95
With Talk Back External Speaker $24.95
Subtotal
Michigan residents add 4 %
Ohio residents add 6%
Wisconsin residents add 5%
8:00 am - 8:00 pm, M-F, CST.
Make check or money order (no stamps)
payable to:
Cobra Accessories Dept.
6500 West Cortland St.Chicago, IL 60707
(Tax if applicable)
Shipping/handling
Total
40
Cobra Electronics Corporation
6500 West Cortland Street
Chicago, IL 60707
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
Technical assistance is also available on-line in the Frequently Asked Questions (FAQ) section
at www.cobraelec.com or by e-mail to productinfo@cobraelec.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.
8:00 am -
8:00 pm, Monday through Friday, CST.
Cobra Electronics Corp.© 1999
Printed in Thailand
Part No. 545-024-N-001
29 LTD Classic
Operating Instructions
for your Cobra 29 LTD Classic
CB Radio
“Ingenious Products for Easier Communication.”
SIG1 3 57 9 +30dB
2 3 CAL
RF
SWR
RF
DYNAMIKE
RFGAIN
DELTATUNE
SWR CAL
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
The CB Story
cb tranceiver
The Citizens Band lies between the shortwave
broadcast and 10-meter Amateur radio bands,
and was established by law in 1949.The Class D
two-way communications service was opened in
1959. (CB also includes a Class A citizens band
2
and Class C remote control frequencies.)
3
4
5
1
FCC Regulations
FCC regulations permit only “transmissions”
(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 LTD Classic
1. CB transceiver 6. DC power cord
2. Microphone 7. FCC rules
3. Transceiver bracket 1. (not shown)
4. Microphone bracket
5. Operating Manual
A1
ANT
PA.SP. EXT.SP.
+ POWER–
DATE OF
MFG :JUNE 98
FCC ID:BBO3K229LTD
COBRA
MADE IN CHINA
SERIAL NO.:806135776
PRECISION ENGINEERED PRODUCT OF
COBRA ELECTRONICS CORP. CHICAGO, ILL.60707
Controls and Indicators
SIG1 3 5 79 +30dB
2 3 CAL
RF
SWR
RF
DYNAMIKE
RFGAIN
DELTATUNE
SWR CAL
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
1. Power On/Off,Volume Control
2. Squelch Control
3. Dynamike
4. RF Gain
5. Delta-Tune
6. SWR CAL
7. Channel Selector
8. LED Channel Display
9. ANT Indicator
10. RX (Receive)/ TX (Transmit)
LED Indicator
11. Channel 9/ Normal Switch
12. Dimmer Switch
13. CB/PA Switch
14 . NB/ANL ANL Off Switch
15. S/RF SWR CAL Switch
16. Signal Strength Meter
17. Microphone
Back Side
18. Public Address Speaker
Jack
19. External Speaker Jack
20. Antenna Connector
21. Power Jack
16
1
14
15
2 3 4
17
11
12
13
5 6 7
10
9
18 19
8
20 21
A2
Our Thanks to You
Thank you for purchasing the Cobra 29 LTD
Classic CB Radio. Properly used, this Cobra product will give you many years of reliable service.
Customer Support
Should you encounter any problems with the
product or not understand its many features,
please refer to this owner’s manual. If , after
referring to the manual, you still need help,
call Cobra Customer Service at 773.889.3087.
Cobra Customer Service
Live operators are available
M-F 8:00 am - 8:00 pm CST at:
773.889.3087
Automated Technical Assistance
available 24 hours a day,seven
days a week. E-mail questions
to:
productinfo@cobraelec.com
Cobra on the World Wide Web:
Frequently Asked Questions
(FAQ) can be found on-line at:
www.cobraelec.com
A3
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