Cobra 29 LTD CHR
Contents
How to Use Your
Cobra 29 LTD CHR
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 LTD CHR
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
TalkBack..............................................................................................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 CHR Specifications ............................................................33
Warranty Information .....................................................................34
Optional Accessories .................................................................35-36
Accessory Order Info .......................................................................37
If You Think You Need Service ...................................Back Cover
Features of This Product
• 40 CB Radio Channels
• Special Edition Chrome Cabinet
& Microphone
• Heavy-Duty Dynamic
Microphone
• Full 4 Watts AM RF Power Output
• SWR Calibration Meter
• Talk Back
• Instant Channel 9
• 4-Pin Front Mount Microphone
Connector
• Delta -Tune
• Switchable Automatic Noise
Limiter & Noise Blanker
• Adjustable Dynamike® Boost
• 9 Ft. Mic Cord
• RF Gain
1
Installation
Installation
Location
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
Mounting and Connection
1
Note
The transceiver is held in
the universal mounting bracket
by two thumbscrews which
allow for adjustment at a
convenient angle.
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.
3
Connect the antenna cable plug to the
receptacle marked “ANT” on the back of
the unit.
The bracket includes two
self-tapping screws and star
washers. The mounting must be
mechanically strong,
conveniently located.
2
Drill the holes and secure the bracket.
continued
2
3
Installation
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.
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.
8
Attach the 4-pin microphone cable to
receptacle, on the front of unit and install unit
on bracket securely.
Note
In positive ground vehicles the
red wire goes to the chassis and
the black wire is connected to
the ignition switch.
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.
4
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.
5
Antennas
Ignition Noise Interference
CB Antenna
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.
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 when antenna is
mounted on the mirror bracket.
1
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.
A standard antenna connector is provided
on the transceiver for easy connection.
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 CHR 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.
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
7
Operation
Operation
Turning On
Turning On
Setting Channel Selector
Setting Channel
Selector
Make sure the power cord, antenna and
microphone are connected to their proper
connectors before starting.
1
8
1
The CB/PA button should be in the
CB position.
2
Rotate the On/Off Volume knob
a normal listening level.
Select
one of forty channels and adjust
volume. The selected channel is indicated by
the LED readout directly above the channel
selector knob
clockwise to
9
Operation
Calibrate For
SWR (Standing
Wave Ratio)
Operation
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.
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).
Note
Antenna Indicator LED
will illuminate when TX if
SWR is high.
1
2
Select
3
Push and hold 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).
channel 20.
Switch to the
CAL position.
continued
10
11
Operation
Operation
To Receive
To Receive
Note
The reading will be slightly
higher on Channels 1 and 40
compared to Channel 20.
5
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. The antenna
indicator will light. A slight
antenna height adjustment
(higher or lower) may be
required. Repeat relcalibration
steps.
6
12
While still holding down the mic button, set
the S/RF SWR CAL switch to the SWR position,
to read the SWR reading.
1
Rotate the
On/Off Volume knob clockwise
the green RX/TX LED will be illuminated.
Repeat the same steps two through five
on Channel 1 and 40. This will check SWR for
all channels.
13
Operation
Selecting A
Channel
Operation
Selecting A Channel
1
S-Meter
Switch to
NB-ANL/ANL/OFF (Noise
Blanker/Automatic Noise Limiter) Switch
Note
NOR to select desired channel.
1
S-Meter
Swings proportionately to strength of incoming
signal when receiving.
NB-ANL/ANL/
OFF (Noise
Blanker/
Automatic
Noise Limiter)
Switch
When switched to ANL the Automatic Noise
Limiter is activated. This helps reduce noise
created by the vehicle’s electronics.
The RF noise blanker is very
effective in reducing repetitive
noises such as ignition
interference.
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.
1
14
The S/RF-SWR-CAL switch must be in the
S/RF position to read the meter.
15
Operation
Operation
Bright/Dim Switch
Bright/Dim
Switch
RF Gain Control
The RF Gain is used to optimize reception in
strong or weak signal areas.
RF Gain Control
Note
The RF Gain is used to optimize
reception in weak signal areas.
1
16
Switch to BRT or DIM to control brightness
of the channel indicator and multi-function
meter for day or nighttime driving.
1
Rotate the
RF Gain knob counterclockwise
to reduce gain in strong signal areas. In weak
signal areas turn clockwise to increase gain.
17
Operation
Setting
Delta-Tune
Operation
Setting Delta-Tune
Gate open
Delta-Tune functions as a “fine tune” control
enabling you to capture a more readable signal,
as well as eliminate adjacent channel interference.
2
1
Setting Squelch
Full
counterclockwise rotation opens the
“gate” allowing all signals in.
Rotate
Delta-Tune knob to the center
position for optimum tuning.
Gate set to Desired
Squelch Setting (DSS)
Setting Squelch
Squelch is the “control gate” for incoming signals.
Gate closed
3
1
18
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.
Full
clockwise rotation closes the gate
allowing only very strong signals to enter.
19
Operation
To Transmit
Operation
Transmit
To Transmit
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.
1
Setting
Dynamike®
Setting Dynamike®
Select desired
channel.
1
This controls the microphone sensitivity
(outgoing audio level).
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.
TalkBack
Setting TalkBack
This control is used to adjust the desired amount
of modulation talk back that is present at the
speaker during transmit. At fully counter-clockwise
position the talk back is off.
1
20
Initially, set fully
clockwise so that maximum
voice volume is available. Dynamike® may have
to be reduced in some conditions.
21
Operation
RF Meter
Operation
RF Meter
External Speaker
This meter swings proportionately to the RF
output (outgoing signal) while transmitting.
The external speaker jack is used for remote
receiver monitoring.
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.
1
22
The S/RF-SWR-CAL switch must be in the
S/RF position.
1
Connect an external speaker to the external
speaker jack on the rear panel.
Note
Cobra external speakers are
rated at 10 watts.
23
Operation
PA (Public
Address)
Operation
PA (Public Address)
Note
Speaker should have 8-ohm
impedance and be rated to
handle at least 4.0 watts.
Note
The speaker should be directed
away from the microphone to
prevent acoustic feedback.
1
Note
Connect an external PA speaker to the PA jack
on the rear panel.
3
Push and hold microphone button and speak
in a normal voice. Your voice will now transmit
on the PA speaker.
4
Adjust PA speaker volume with the
Dynamike® control.
Activity on the CB channel will
be heard through the PA
speaker. Adjust volume control
to a normal listening level.
2
24
Set
CB/PA switch to PA position.
25
Home And Office Set-Up
Base Station
Operation
(From 120V AC
House Current)
Temporary Mobile Set-Up
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.
Warning!
Do not attempt to operate this
transceiver by connecting it
directly to 120v ac.
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
Note
For temporary mobile operation you may want to
purchase an optional automobile power adapter
from your COBRA dealer. This adapter and a
magnetic mount antenna allow you to quickly
“install” your transceiver for temporary use.
For further information call
Cobra Customer Service
773.889.3087.
1
26
Temporary
Mobile Set-Up
Simply connect the red (+) and black (-)
leads of the transceiver to the corresponding
terminals of the power pack.
27
How Your CB Can Serve You
•
•
•
•
•
•
•
•
•
A Few Rules
You Should
Know
Channel 9
Emergency
Messages
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
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.”
“Post number 10.
No tornado sighted.”
No
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.
Yes
No
Yes
No
Yes
1. Set to channel 9 for emergencies
Be sure antenna is properly connected.
No
2. CB Distress Data
When transmitting an emergency, you should
request a “REACT BASE” and provide the CB
distress data (called CLIP):
Note
C
L
I
P
If no response on channel 9,
try channels 19 or 14.
all Sign
ocation
njuries
roblem
Identify yourself.
Be exact.
Number. Type. Trapped?
Give details and help needed.
Yes
No
“Out of gas on I-95 at mile
marker 211.”
“Out of gas in my driveway.”
“Four car accident on I-94 at
Exit 11. Send police and
ambulance.”
“Traffic moving smoothly on I-94.”
“Weather Bureau has issued
thunderstorm warning.
Bring sailboat into port.”
“Attention motorists.
Weather Bureau advises snow
tomorrow will accumulate
4 to 6 inches.”
“Fire in building at 539 Main,
Evanston.”
“Halloween patrol number 3.
All quiet.”
Transmit CLIP repeatedly so any monitor can assist.
28
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
10-1
10-2
10-3
10-4
10-5
10-6
10-7
10-8
10-9
10-10
10-11
10-12
10-13
10-16
10-17
10-18
10-19
10-20
10-21
10-22
10-23
10-24
10-25
10-26
10-27
10-28
30
Meaning
Receiving poorly
Receiving well
Stop transmitting
OK, message received
Relay message
Busy, stand by
Out of service, leaving
In service, subject to call
Repeat message
Transmission completed standing by
Talking too rapidly
Visitors present
Advise weather/roads
Make pick up at
Urgent business
Anything for us?
Return to base
My location is
Call by phone
Report in person to
Stand by
Completed last assignment
Can you contact
Disregard last info
Moving to channel
Identify your station
How Your CB Can Serve You
Code
10-29
10-30
10-33
10-34
10-35
10-36
10-37
10-38
10-39
10-41
10-42
10-43
10-44
10-45
10-50
10-60
10-62
10-63
10-64
10-65
10-67
10-70
10-71
10-77
10-81
10-82
10-85
10-91
10-93
10-94
10-99
10-200
Meaning
Time is up for contact
Does not conform to FCC rules
Emergency traffic
Trouble at this station
Confidential information
Correct time is
Wrecker needed at
Ambulance needed
Message delivered
Turn to channel
Traffic accident at
Traffic tie up at
Have a message for
All units within range please report
Break channel
What is next message number?
Unable to copy. Use phone
Net directed to
Net clear
Awaiting your next message/assignment
All units comply
Fire at
Proceed, transmission in sequence
Negative contact
Reserve hotel room for
Reserve room for
My address is
Talk closer to mic
Check my frequency on this channel
Give me a long count
Mission completed, all units secure
Police needed at
31
29 LTD CHR Specifications
Frequency Ranges
The COBRA 29 LTD CHR 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
2
3
4
5
26.965
26.975
26.985
27.005
27.015
21
22
23
24
25
27.215
27.225
27.255
27.235
27.245
6
7
8
9
10
27.025
27.035
27.055
27.065
27.075
26
27
28
29
30
27.265
27.275
27.285
27.295
27.305
11
12
13
14
15
27.085
27.105
27.115
27.125
27.135
31
32
33
34
35
27.315
27.325
27.335
27.345
27.355
16
17
18
19
20
27.155
27.165
27.175
27.185
27.205
36
37
38
39
40
27.365
27.375
27.385
27.395
27.405
32
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 (maximum)
Receive: Squelched, 0.3A;
full audio output, 1.2A (nominal)
Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5/8” D x 7-9/32”W x 2-13/64” H
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 lbs.
Antenna Connector . . . . . . . . . . . . . . . .UHF; SO-239
Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Illuminated; 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 Control . . . . . . . . . . . . . . . . . . . .Adjustable for optimum signal reception
Noise Blanker . . . . . . . . . . . . . . . . . . . . . .RF type
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
when connected
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 receiver;
separate jack provided
(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)
WARNING: This product contains lead, a chemical known to the State of California
to cause cancer and birth defects or other reproductive harm..
Wash hands after handling.
33
Limited One Year Warranty
Optional Accessories
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 one (1) year 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 Electronics
Corporation
6500 West Cortland Street
Chicago, Illinois 60707 USA
www.cobra.com
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,
accompanied by proof of the date of first consumer
purchase, such as a duplicated copy of a sales receipt.
Replacement DC Power Cord
For in vehicle use
426-002-N-001
Replacement Mounting
Bracket
For in vehicle use
251-353-9-001
Replacement Thumb Screws
For in vehicle use
634-081-9-001
Replacement Microphone
Bracket
For in vehicle use
741-080-9-001
21” Base Loaded Magnet
Mount Antenna
38” Base Loaded Magnet
Mount Antenna
HG A1000
HG A1500
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.
This warranty gives you specific legal rights, and you may
also have other rights which vary from state to state.
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
4 Pin Premium NoiseCancelling Microphone
HG M84
4 Pin Premium NoiseCancelling Microphone
Wood Grain
HG M84W
35
Optional Accessories cont.
4 Pin Replacement Dynamic
Microphone
HG M73
Power Microphone
HG M75
4 Pin Noise Canceling
Microphone
HG M77
Dynamic External Speaker
Noise Canceling External
Speaker
HG S300
Noise Canceling With Talk
Back External Speaker
HG S500
HG S100
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 37.
36
29 LTD CHR
Cobra Electronics Corporation
6500 West Cortland Street
Chicago, IL 60707 USA
Operating Instructions for
your Cobra 29 LTD CHR
If You Think You Need Service
The CB Story
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
and Class C remote control frequencies.)
2
For technical assistance, please call our Automated Help Desk which can assist
you by answering the most frequently asked questions about Cobra products.
FCC Regulations
1
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.”
(773) 889-3087
24 hours a day, 7 days a week.
A Consumer Service Representative can be reached at 773.889.3087
8:00 am - 6:00 pm, Monday through Friday, Central Time.
Technical assistance is also available on-line in the Frequently Asked Questions
(FAQ) section at www.cobra.com or by e-mail to productinfo@cobra.com
FCC Warnings
3
If you think you need service call 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 West Cortland Street, Chicago, IL 60707 USA.
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 773.889.3087 for
assistance.
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.
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.
4
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 CHR
©2008 Cobra Electronics Corporation
Version A
Printed in China
Part No. 480-456-P
1.
2.
3.
4.
5.
5
A1
CB transceiver
Microphone
Transceiver bracket
Microphone bracket
Operating Manual
6. DC power cord
7. FCC rules
1. (not shown)
Controls and Indicators
Accessory Order Info
Our Thanks to You
Ordering From U.S.A.
Call 773-889-3087 for pricing or visit www.cobra.com.
Thank you for purchasing the Cobra 29 LTD CHR
CB Radio. Properly used, this Cobra product will
give you many years of reliable service.
1. 4-Pin Microphone Connector
2. Power On/Off/Volume/
Squelch Control
17
3. Dynamike®
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.
4. RF Gain
5. Delta-Tune
6. SWR CAL / Talk Back
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
15 14 13 12 11 10
16
8
9
Cobra Customer Service
Live operators are available
M-F 8:00 am - 6:00 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
For Credit Card Orders
Call 773-889-3087 [Press one from the main menu] 8:00 a.m. to
6:00 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
Item #
Description
426-002-N-001
251-353-9-001
634-081-9-001
741-080-9-001
HG A1000
Replacement DC Power Cord
Replacement Mounting Bracket
Replacement Thumb Screws
Replacement Microphone Bracket
21” Base Loaded,
Magnetic Mount Antenna
38” Base Loaded
Magnetic Mount Antenna
4 Pin Premium Noise-Cancelling
Microphone
4 Pin Premium Noise-Cancelling
Microphone (Wood Grain)
4 Pin Replacement Dynamic
Microphone
4 Pin Noise-Cancelling
Microphone
Power Microphone
Dynamic External Speaker
Noise-Cancelling External
Speaker
Noise-Cancelling with Talk Back
External Speaker
HG A1500
HG M84
HG M84W
13. CB/PA Switch
HG M73
14. NB/ANL ANL Off Switch
HG M77
15. S/RF SWR CAL Switch
1
2
3
4
5
6
7
HG M75
HG S100
HG S300
16. Signal Strength Meter
17. Microphone
HG S500
Back Side
18. Public Address
Speaker Jack
18
19
19. External Speaker Jack
20. Antenna Connector
21. Power Jack
20
A2
21
A3
37
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