Cobra 29ltd Hd Le Cb Tranciever Manual

							29 LTD HD LE
Operating Instructions 
for your Cobra 29 LTD HD LEEditionCB Radio
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.)
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 HD LE
1.CB transceiver6.DC power cord
2.Microphone7.FCC rules
3.Transceiver bracket1.(not shown)
4.Microphone bracket
5.Operating Manual
29 LTD HD LE
Cobra Electronics Corporation
6500 West Cortland Street
Chicago, IL 60707 USA
©2002 Cobra Electronics Corporation
Printed in China
Part No. 480-053-P
Operating Instructions 
for your Cobra 29 LTD HD LE
Edition
CB Radio
The CB Story
A1
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 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, CST.Technical assistance is also available on-line in the Frequently Asked Questions (FAQ) section
at www.cobra.com or by e-mail to [email protected]
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.
If You Think You Need Service
3
2
4
5
1 
						

							1.4-Pin Microphone Connector
2.Power On/Off/Volume/
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
Thank you for purchasing the Cobra 29 LTD HD LE
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.
Controls and Indicators
Cobra Customer Service
Live operators are available 
M-F 8:00 am - 6:00 pm CST at:
773.889.3087 
Automated Technical Assistance
available 24 hours a day, seven
days a week. E-mail questions
to: [email protected]
Cobra on the World Wide Web:
Frequently Asked Questions
(FAQ) can be found on-line at:
www.cobra.com
Our Thanks to You
A3A21
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©2002 H-D, All Rights Reserved
Manufactured by Cobra Electronics Corporation
under licence from Harley-Davidson Motor
Company 
						

							How to Use Your 
Cobra 29 LTD HD 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 Interface.................................................................7
Operating Your 29 LTD HD LE
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 HD LE Specifications.........................................................33
Warranty Information.....................................................................34
Optional Accessories.................................................................35-36
Order Form...........................................................................................37
If You Think You Need Service...................................Back Cover
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 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
32
Mounting and
ConnectionMounting and Connection
Hold the radio with the mounting bracket in
the exact desired location. If there is no
interference, remove the bracket and use it as
a template to mark the location for the
mounting screws.
Location
Plan 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.
Note
The transceiver is held in 
the universal mounting bracket
by two thumbscrews which
allow for adjustment at a
convenient angle.
The bracket includes two 
self-tapping screws and star
washers. The mounting must be
mechanically strong,
conveniently located.
continued Drill the holes and secure the bracket.
2
1
Connect the antenna cable plug to the
receptacle marked “ANT” on the back of 
the unit.3 
						

							Installation Installation
54
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
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.
In a negative grounded vehicle, connect the
red lead of the DC power cord to an accessory
12 volt fuse.
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
5
Plug power cable into back of unit marked
“Power”.Be sure to observe polarity markings.
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.6
7
Attach the 4-pin microphone cable to 
receptacle, on the front of unit and install unit
on bracket securely.8
SIG 1 3 5 7 9 +30dB23
CAL
RF SWRRF 
						

							Ignition Noise Interference Antennas
Use of a mobile receiver at low signal levels is
normally limited by the presence of electrical
noise. The primary source of noise in automobiles
is from the alternator and ignition system.
Typically, when 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 HD 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.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.
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.
CB Antenna
7
Note
For optimum performance in
passenger cars the ideal
antenna location is on the
center of the roof. Second
choice is on the
center of the trunk.
Note
Because many newer trucks 
feature fiberglass door skins, the
outside mirror must be
grounded to the chassis via a
ground strap when antenna is
mounted on the mirror bracket.
Note
3-way Combination 
Antennas are also available
which allow operation of all
three bands (AM-FM & CB),
using a single antenna.
However, this type of antenna
usually results in less than
normal transmit and receive
range when compared to a
standard-type “Single  Band” CB
antenna. Call 773-889-3087 for
further information.
6
1A standard antenna connector is provided 
on the transceiver for easy connection. 
						

							The     CB/PA button should be in the 
CB position.
Operation
9
Operation
Turning On Setting Channel
Selector 
8
Turning On 
Make sure the power cord, antenna and
microphone are connected to their proper
connectors before starting.
Setting Channel Selector 
2
1
Rotate the On/Off Volume knob       clockwiseto
a normal listening level.
Selectone of forty channels and adjust 
volume. The selected channel is indicated by
the LED readout directly above the channel
selector knob1 
						

							Operation Operation
Calibrate For
SWR (Standing
Wave Ratio)
1110
Note
Antenna Indicator LED 
will illuminate when TX if 
SWR is high.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).
continued Switchto the     CAL position.
2
1
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.
Selectchannel 20.
Push and holdmic button.3
While holdingmic 
button adjustthe 
SWR CAL knob so the
meter needle swings
to the CAL ▼mark on
the meter (located on the right).4 
						

							Operation
13
Operation
12
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. The antenna
indicator will light. A slight
antenna height adjustment
(higher or lower) may be
required. Repeat relcalibration
steps.
Repeat the same steps two through five 
on Channel 1 and 40. This will check SWR for
all channels.6
While still holding down the mic button, set
the S/RF SWR CAL switch to the SWR position,
to read the SWR reading.5
Rotate the       On/Off Volume knob clockwise
the green RX/TX LED will be illuminated.
To  Receive
1
To Receive 
						

							The     S/FR-SWR-CAL switch must be in the
S/RF position to read the meter.
Operation
15
Operation
14
1
S-MeterS-Meter
Swings proportionately to strength of incoming
signal when receiving.Switchto    NOR to select desired channel.
1
Selecting A
ChannelSelecting A ChannelNB-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.
When switchedto    ANL the Automatic Noise 
Limiter is activated. This helps reduce noise
created by the vehicle’s electronics.
When switchedto    NB/ANL position the RF
Noise Blanker is also activated, providing
increased noise filtration.
When switchedto    OFF position all noise
filtration will be turned off.
NB-ANL/ANL/OFF (Noise
Blanker/Automatic Noise Limiter) Switch 
1