Cobra 29ltd Hd Le Cb Tranciever Manual

							Operation Operation
1716
RF Gain Control Bright/Dim
SwitchRF Gain Control
The RF Gain is used to optimize reception in
strong or weak signal areas.
Bright/Dim Switch
Note
The RF Gain is used to optimize
reception in weak signal areas.
Switch to     BRT or DIM to control brightness
of the channel indicator and multi-function
meter for day or nighttime driving.
Rotatethe       RF Gain knob counterclockwise
to reduce gain in strong signal areas. In weak 
signal areas turn clockwiseto increase gain.1
1 
						

							Full      clockwiserotation closes the gate 
allowing only very strong signals to enter.
Full      counterclockwiserotation opens the
“gate” allowing all signals in.
To achieve the Desired Squelch Setting (DSS),
turn the Squelch control       counterclockwise
until you hear noise. Now turn the control
clockwisejust until the noise stops. This is the
DSS setting.
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.
Setting Squelch 
Squelch is the “control gate” for incoming signals.
19
Setting 
Delta-Tune
18
Operation
Operation
1
2
1
3
RotateDelta-Tune knob to the center
position for optimum tuning.
Gate open
Gate set to Desired 
Squelch Setting (DSS)
Gate closed
Setting Squelch 
						

							Setting Dynamike
This controls the microphone sensitivity 
(outgoing audio level).
To Transmit
21
To Transmit Transmit
20
Setting
Dynamike
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.
Operation
Operation
1
Selectdesired      channel.1
Initially, set fully       clockwiseso that
maximum voice volume is available. Dynamike
may have to be reduced in some conditions.
Transmit
Push and holdmic button to transmit.
Transmitter is now activated. When
transmitting, hold the microphone two inches
from your mouth and speak in a clear, normal
voice.Releaseto receive.1 
						

							Operation Operation
RF Meter
2322
External SpeakerRF Meter
This meter swings proportionately to the RF
output (outgoing signal) while transmitting.
External Speaker
The external speaker jack is used for remote
receiver monitoring.
The      S/RF-SWR-CAL switch must be in the
S/RF position.
1
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.
Connect an external speaker to the external
speaker jack on the rear panel.1 
						

							Operation Operation
PA (Public
Address)
2524
PA (Public Address)
Connect an external PA speaker to the PA jack
on the rear panel.
Set     CB/PA switch to PA position.Push and holdmicrophone button and speak
in a normal voice. Your voice will now transmit
on the PA speaker.
AdjustPA speaker volume with the 
Dynamike control.
Note
Speaker should have 8-ohm
impedance and be rated to 
handle at least 4.0 watts.
Note
The speaker should be directed
away from the microphone to
prevent acoustic feedback.
Note
Activity on the CB channel will
be heard through the PA
speaker. Adjust volume control
to a normal listening level.
1
2
3
4 
						

							Temporary Mobile Set-Up
27
Base Station
Operation
(From 120V AC
House Current)
Temporary
Mobile Set-Up
Temporary Mobile Operation
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.
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.
Home And Office Set-Up
26
Warning! 
Do not attempt to operate this
transceiver by connecting it
directly to 120 vac.
Note
For further information call
Cobra Customer Service
773.889.3087.
1
Connect properly installed and matched base
station antenna.
Simply connect the red (+) and black (-) 
leads of the transceiver to the corresponding
terminals of the power pack.Plug power cable into back of unit marked
“Power”.Be sure to observe polarity markings.
2
3 
						

							How Your CB Can Serve You How Your CB Can Serve You
2928
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.”
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):
Call SignIdentify yourself.
LocationBe exact.
InjuriesNumber. Type. Trapped?
ProblemGive details and help needed.
Transmit CLIPrepeatedly so any monitor can assist.
Channel 9
Emergency
Messages
Note
If no response on channel 9,
try channels 19 or 14.
•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.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.
A Few Rules 
Yo u  S hould 
Know 
						

							How Your CB Can Serve You How Your CB Can Serve You
3130
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 atCB 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
CB 10-Codes 
						

							29 LTD HD LE Specifications Frequency Ranges
3332
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)
The COBRA 29 LTD HD LE 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.
126.965 21 27.215
226.975 22 27.225
326.985 23 27.255
427.005 24 27.235
527.015 25 27.245
627.025 26 27.265
727.035 27 27.275
827.055 28 27.285
927.065 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
Channel Channel
CB Freq. CB Freq.
Channel In MHz Channel In MHz 
						

							RFOptional Accessories
35
Replacement DC Power Cord 
For in vehicle use
426-002-N-001 $7.50Replacement Mounting
Bracket
For in vehicle use
251-353-9-001 $4.50Replacement Thumb Screws
For in vehicle use
634-081-9-001 $0.60
Replacement Microphone
Bracket
For in vehicle use
741-080-9-001 $0.45
Limited Two Year Warranty
34
COBRA ELECTRONICS CORPORATIONwarrants 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,
accompanied 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 Cobras 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.
Cobra Electronics
Corporation
6500 West Cortland Street
Chicago, Illinois 60707 USA
www.cobra.com
2YearWarranty
QUALITY SEAL
21” Base Loaded Magnet
Mount Antenna
HG A1000 $28.9538” Base Loaded Magnet
Mount Antenna
HG A1500 $28.95
54” Base Loaded Magnet
Mount Antenna
HG A2000 $28.954 Pin Premium Noise-
Cancelling Microphone
HG M84 $74.954 Pin Premium Noise-
Cancelling Microphone
Wood Grain
HG M84W $74.95