Cobra 29 LTD Classic AM/FM Series Professional CB Radio User Manual
- June 10, 2024
- Cobra
Table of Contents
Cobra 29 LTD Classic AM/FM Series Professional CB Radio User Manual
Our Thanks, The CB Story, and Customer Assistance
Citizens Band Radio History
Invented by Al Gross in 1945, the CB radio originally served as a method of
communication for troops during World War II. After the war, Gross worked to
make two-way radios a way of communication for personal use and the CB radio
service was established by law in the U.S. in 1949. It wasn’t until the 1970s
that technology advanced and the CB market caught on as a method of
communication between drivers to report police speed traps and road hazards.
The Citizens Band Radio Service consists of 40 channel frequencies that are
mostly 10 kHz apart. Transmitter power is limited to 4 watts in the US, and
range can vary depending on the terrain and quality of the product. Currently,
the Citizens Band service does not require a license for operation, regardless
of age, as long as the rules of operation established by the Federal
Communication Commission (FCC) are followed.
Petition For FCC Part 65 Rule Changes
In 2016, Cobra petitioned the FCC to revise Part 95 rules to allow CB radios
to use frequency modulation (FM). Cobra contended that FM offers improved
speech quality and lower noise interference, which improves the standard of
two-way radios and is a benefit to the customer. Through the direct efforts of
Cobra Electronics and the enthusiastic support from loyal customers and the
distribution network the FCC granted the request. In 2021, Part 95 officially
was updated to include FM as an option for two-way radio use. Today, thanks to
Cobra Electronics’ petitions to improve the quality of the Citizens Band Radio
Service, users can enjoy the benefits of CB radio communication in a range of
industries.
Customer Support
Service, Orders & Product Questions
For service, product questions and service hours call
800-543-1608 or go to
www.cobra.com
For Assistance Outside the U.S.A.
Contact Your Local Dealer
29 LTD AM/FM Pro Series Features
29 LTD CHROME
29 LTD NIGHTWATCH
Product Features and FCC Regulations
FCC Compliance
Any changes or modifications not expressly approved by Cobra Electronics could void your authority to operate the equipment. This device complies with Part 15 of the FCC rules. Operation is subject to the following two 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. FCC Compliance Any changes or modifications not expressly approved by Cobra Electronics could void your authority to operate the equipment.
Installation
Location
Plan for the location of the CB 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 to a convenient angle. The bracket includes two self-tapping screws and star washers. The mounting must be mechanically strong and conveniently located
Mounting and Connection
-
Hold the radio with the mounting bracket in the exact desired location. If there is no interference, remove the bracket and use it as a template to mark the location for the mounting screws.
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Drill the holes and secure the bracket.
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Connect the antenna cable plug to the receptacle marked “ANT” on the back of the unit.
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Connect the red lead of the DC power cord to an accessory 12 volt fuse or directly to the battery.
NOTE: Connecting to an accessory fuse prevents the unit from being left on accidentally, and also permits operating the unit without running the engine. -
Connect the black lead to the negative side of the vehicle electrical system. This is usually the chassis. Any convenient location with a good electrical contact (remove paint) may be used.
NOTE: Before installing the CB radio, visually check the vehicle’s battery connection to determine which terminal is positive or negative. A negatively grounded vehicle has its negative lead grounded to the chassis. -
Plug power cable into back of unit marked “Power”. Be sure to observe polarity markings.
-
The microphone can be mounted to either side of the CB using the supplied screws. Alternatively the microphone can be mounted to the dash or any convenient location.
-
Attach the microphone to the front of the CB.
NOTE: If the microphone is not connected, audio will not be heard at the speaker. NORMAL 29 LTD CLASSIC PUSH AM/F
Antennas
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
800-543-1608 and speak to a Cobra
representative. A standard antenna connector is provided on the transceiver
for easy connection.
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. Because many newer trucks feature
fiberglass door skins, the outside mirror must be grounded to the chassis via
a ground strap when the antenna is mounted on the mirror bracket. 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.
Cobra offers CB antenna and mounting solutions that can be purchased online. Please visit www.cobra.com, or if you’d like to speak with an expert, please call 1-800-543-1608 and our Customer Care Group can assist
Operation
Turning On Your CB
Make sure the power cord, antenna and microphone are connected to their proper
connectors before starting
-
The CB/PA button should be in the CB position.
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Rotate the On/Off Volume knob clockwise to a normal listening level
Setting AM/FM
29 LTD Series AM/FM CBs allows for communications on either AM or FM modes.
Each mode operates under Channels 1 – 40. AM is the default mode. To change to
FM mode, press and release the channel selector knob to choose FM. Once
selected a green indicator will appear to the right of the displayed channel
and indicate you are in FM Mode.
Setting Channel Selector
Select one of forty channels. The selected channel is indicated by the LED
read out directly above the channel selector knob
FCC Statement
FCC Part 15.19 Warning Statement
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS
SUBJECT TO THE FOLLOWING TWO CONDITIONS:
- THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND
- THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.
FCC Part 15.21 Warning Statement
NOTE: THE GRANTEE IS NOTRESPONSIBLE FOR ANY CHANGES OR MODIFICATIONS NOTEXPRESSLY APPROVED BY THE PARTY RESPONSIBLE FOR COMPLIANCE. SUCH MODIFICATIONS COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT.
FCC Part 15.105(b) Warning Statement
NOTE: This equipment has been tested and found to comply with the limits for
a Class B digital device, pursuant to part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference in
a residential installation. This equipment generates uses and can radiate
radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more
of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help
IC RSS-GEN, Sec 8.4 Warning Statement
NGLISH: This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions:
- this device may not cause interference, and
- this device must accept any interference, including interference that may cause undesired operation of the device.
IC RSS-GEN, Sec 8.3 Warning Statement
This radio transmitter (identify the device by certification number, or model number if Category II) has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Immediately following the above notice, the manufacturer shall provide a list of all antenna types approved for use with the transmitter, indicating the maximum permissible antenna gain (in dBi) and required impedance for each.
RF Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
minimum distance 40cm between the radiator & your body. The device is in
compliance with RF exposure guidelines, users can obtain Canadian information
on RF exposure and compliance. The minimum distance from body to use the
device is 40cm.