29 NW ST manual3.3 6/15/99 12:50 PM Page 1
How to Use Your
Contents
Features..................................................................................................1
The CB Story.........................................................................................A1
FCC Regulations
FCCWarnings
Included Accessories
Controls & Indicators.......................................................................A2
Our Thanks toYou.............................................................................A3
SoundTracker
Customer Support
Installation
Location.............................................................................................2
Mounting and Connection.........................................................2
Antennas
CB Antenna.......................................................................................6
Marine Installation.........................................................................6
Ignition Noise Interference ..........................................................7
Operating Your 29 NW ST
Turning On Your CB........................................................................8
Setting Channel Selector.............................................................9
Calibrate For SWR (Standing Wave Ratio)..............................10
To Receive..........................................................................................12
Selecting a Channel.......................................................................13
S-Meter...............................................................................................13
SoundTracker™System................................................................14
Activating SoundTracker™..........................................................15
NB-ANL/ANL/Off (Noise Blanker/Automatic.........................16
Noise Limiter Switch)
Tone Hi/Nor.......................................................................................17
RF Gain Control................................................................................17
Dimmer Switch................................................................................18
Setting Squelch...............................................................................18
ToTransmit........................................................................................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
HowYour 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 NW ST Specifications.................................................................33
Warranty Information.....................................................................34
Optional Accessories.................................................................35-36
Order Form...........................................................................................37
IfYou Think You Need Service...................................Back Cover
™
Cobra 29 NW ST
Features of This Product
• 40 CB Radio Channels
• SoundTracker™System
• Heavy-Duty Dynamic
Microphone
• Full 4 Watts AM RF Power Ou t p u t
• SWR Calibration Meter
• Instant Channel 19 and 9
• Front Panel 4-Pin Microphone
Connector
• Delta -Tune
• Switchable Automatic Noise
Limiter & Noise Blanker
• Adjustable Dynamike Boost
• Tactile Controls
• Illuminated Front Panel
• Dim Control
• RF Gain
• 9 ft.Mic Cord
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
P E R S O N N E L
!
!
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29 NW ST manual3.3 6/15/99 12:50 PM Page 2
InstallationInstallation
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 inte rfe re with the dri ver 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.
3
Connect the antenna cable plug to the receptacle marked “ANT” on the back of the unit.
2
Drill the holes and secure the bracket.
continued
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29 NW ST manual3.3 6/15/99 12:50 PM Page 4
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.
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.
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.
InstallationInstallation
8
Attach the 4-pin microphone cable to receptacle on front of unit and Install unit in bracket
securely.
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29 NW ST manual3.3 6/15/99 12:50 PM Page 6
Ignition Noise InterferenceAntennas
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 via ground
strap,if the 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 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.
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 NW ST 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.
6
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29 NW ST manual3.3 6/15/99 12:50 PM Page 8
Operation
Turning On Setting Channel
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.
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
Operation
Selector
2
Ro t ate the On/Off Volume knob c l oc kw i s eto
a normal listening level.
8
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29 NW ST manual3.3 6/15/99 12:50 PM Page 10
OperationOperation
Calibrate For
SWR (Standing
Wave Ratio)
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
Switchto the CAL position.
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).
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
The reading will be slightly higher on Channels 1 and 40 compared to Channel 20.
continued
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Operation
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.
To Receive
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.
To Receive
Selecting A Channel
1
Switch to NOR to select desired channel.
S-Meter
Swings proportionately to strength of incoming
signal when receiving.
Operation
Selecting A
Channel
Note
Switch to 9 (Emergency) or 19
(Information) for instant access
to these channels.
S-Meter
1
Rotate the On/Off Volume knob clockwise
the green RT/TX LED will be illuminated.
12
1
The S/RF-SWR-CAL switch must be in the
S/RF position to read the meter.
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OperationOperation
Note
SoundTracker™ gives you
clearer,cleaner reception to
improve CB communications
while on the air.
The SoundTrackerTMSystem
While previous systems only “blanket out”or limit
noise in higher sound frequencies,the revolutionary new SoundTrackerTMSystem actually reduces
noise while leaving the signal intact in the reception mode. In the transmission mode, it actually
strengthens the signal,providing you with a
significant reduction in noise on reception
and transmission.
Sound clarity is measured by the ratio
of the signal level to the noise level.
The higher the signal-to-noise ratio,
the better the sound.
How SoundTrackerTMWorks
On Reception - “Cuts noise coming in”
With a normal CB,distant signals fall below
the squelch level and are unintelligible.With a
SoundTrackerTMCB,the noise level is cut up to
90%,which increases the signal-to-noise ratio
and dramatically improves signal clarity.This also
allows you to significantly reduce the squelch
level,which greatly expands your listening range.
OnTransmission - “Strengthens signals going out”
A SoundTrackerTMCB strengthens the transmit
signal by more effectively using the available RF
power output of the CB.The result is improved
transmission signal clarity and an expanded
transmission range.
Activating SoundTracker™
1
Push and release the ST button.Red LED
is illuminated when SoundTracker™ is
turned on.
Activating
SoundTracker
™
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29 NW ST manual3.3 6/15/99 12:50 PM Page 16
OperationOperation
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.
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.
Tone Hi/Nor
This switch is used to shape the Audio Response
to the operators preference.
1
When set in HI the treble is increased.
RF Gain Control
The RF Gain is used to optimize reception in
strong or weak signal areas.
Tone Hi/Nor
RF Gain Control
Note
The RF Gain is used to optimize
reception in 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.
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Operation Operation
Dimmer Switch
Note
The Dimmer controls the
brightness of the front panel,
signal strength meter and
channel display.
Setting Squelch
Gate closed
Dimmer Switch
1
Ro t a tethe Dimmer knob cloc kwise for maxi-
mum bri g ht n e s s ;co u nte r - c l oc kwise for minimum.
Setting Squelch
Squelch is the “control gate”for incoming signals.
2
Full counterclockwise rotation opens the
“gate”allowing all signals in.
3
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.
Gate open
Gate set to Desired
Squelch Setting (DSS)
1
Full clockwise rotation closes the gate
allowing only very strong signals to enter.
18
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29 NW ST manual3.3 6/15/99 12:50 PM Page 20
Operation Operation
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.
Setting
Dynamike
ToTransmit
1
Select desired channel.
Setting Dynamike
This controls the microphone sensitivity
(outgoing audio level).
Transmit
1
Push and hold mic button to transmit.
Transmitter is now activated.When transmit-
ting,hold the microphone two inches from
your mouth and speak in a clear, normal voice.
Release to receive.
1
Initially,set fully clockwise so that maximum voice volume is available.Dynamike
may have to be reduced in some conditions.
20
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29 NW ST manual3.3 6/15/99 12:50 PM Page 22
OperationOperation
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.
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.See accessories page 39.
22
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29 NW ST manual3.3 6/15/99 12:50 PM Page 24
OperationOperation
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
Activity on the CB channel
will be heard through the PA
speaker.Adjust Volume Control
for normal listening level.
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.
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.
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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.
Temporary Mobile Set-Up
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 cigarette 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
1
Simply connect the red (+) and black (-)
leads of the transceiver to the corresponding
terminals of the power pack.
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How Your CB Can Serve YouHow Your CB Can Serve You
A Few Rules
You Should
Know
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. Co nve r s ations cannot last more than 5 minute s
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.
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 C L I P re pe atedly so any monitor can assist.
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.”
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How Your CB Can Serve YouHow 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
p rovide quick and easy co m m u n i cat i o n ,e s pe c i a l l y
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
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
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29 NW ST SpecificationsFrequency Ranges
The COBRA 29 NW ST 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
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)
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,TYPICAL
IF FREQUENCIES . . . . . . . . . . . . . . . . . .DOUBLE CONVERSION:1ST:10.695 MHZ
AUTOMATIC GAIN CONTROL (AGC) .LESS THAN 10 dBCHANGE IN AUDIO
RF GAIN RANGE . . . . . . . . . . . . . . . . . . .40 dB
NOISE BLANKER . . . . . . . . . . . . . . . . . . .RF TYPE
SQUELCH . . . . . . . . . . . . . . . . . . . . . . . . .A D J U S TA B L E ;THRESHOLD LESS THAN 1µV
AUDIO OUTPUT POWER . . . . . . . . . . .4WATTS
FREQUENCY RESPONSE . . . . . . . . . . . .300 TO 3000 HZ
DISTORTION . . . . . . . . . . . . . . . . . . . . . .LESS THAN 7% @3 WATTS @ 1000 HZ
BUILT-IN SPEAKER . . . . . . . . . . . . . . . . .8 OHMS,5W
E XTERNAL SPEAKER (NOT SUPPLIED) 8 OHMS;DISABLES INTERNAL SPEAKER
PA SYSTEM
POWER OUTPUT . . . . . . . . . . . . . . . . . .4 WATTS INTO EXTERNAL SPEAKER
EXTERNAL SPEAKER FOR PA . . . . . . . .8 OHMS, 4 W MIN.
(NOT SUPPLIED) . . . . . . . . . . . . . . . . . .THE PA SPEAKER ALSO MONITORS THE
(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)
RECEIVE:SQUELCHED, 0.3A;
FULL AUDIO OUTPUT,1.2A (NOMINAL)
POWER OUTPUT,RECEIVED
SIGNAL STRENGTH AND VSWR
2ND:455 KHZ
OUTPUT FOR INPUTS FROM 10 TO 50,000
MICROVOLTS
WHEN CONNECTED
RECEIVER;SEPARATE JACK PROVIDED
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29 NW ST manual3.3 6/15/99 12:50 PM Page 34
Limited Two Year Warranty
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 alter-
ations 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 install at i o n .
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
Optional Accessories
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
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
Some states do not allow limitations on how long an
implied warranty lasts and/or do not allow the exclu-
sion or limitation of incidental or consequential damages,so the above limitations may not apply to you.
39”Full Range Base Load,
Magnetic Mount Antenna
For in vehicle use
AT 70 $24.95
44”Full Range,Center Load,
Dual Band CB/WX Antenna
Allows greater transmission
range while in a moving vehicle.
ATW- 4 0 0 $ 2 7 . 9 5
3534
Replacement Dynamic
Microphone
For in vehicle use
CA 73 $12.95
29 NW ST manual3.3 6/15/99 12:50 PM Page 36
Optional Accessories
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
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.
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
Shipping & Handling
Amount of Shipping/
Order Handling
$25.00 and under $4.75 minimum
$25.01-$40.00 $6.95
$40.01-$80.00 $9.25
$80.01-$120.00 $10.25
$120.01-$160.00 $11.75
$160.01 and up $14.50
For AK,HI and PR please add
an additional $15.00 for UPS
shipments.
Accessory Order Form
Item # Description Cost Ea. Qty. Amount
4 2 6 - 0 0 2 - N - 0 0 1 Re p l a ce m e nt DC Power Co r d $ 7 . 5 0
2 5 1 - 3 5 3 - 9 - 0 0 1 Re p l a ce m e nt Mo u nting Bra c ke t $ 4 . 5 0
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,
Magnetic Mount Antenna $19.95
AT 55 25”Glass Mount Antenna $27.95
AT 70 39”Full Range Base Load,
Magnetic Mount Antenna $24.95
ATW 400 44”Full Range,Center Load,
Dual Band CB/WX Antenna $27.95
CA 73
CA 75 Power Microphone $21.95
CA 77
CA79 Echo/Noise Canceling Microphone $59.95
CS 100 Dynamic External Speaker $14.95
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
Replacement Dynamic Microphone
Noise Canceling/Power Microphone
With Talk Back External Speaker $24.95
Michigan residents add 4 %
Ohio residents add 6%
Wisconsin residents add 5%
8:00 am - 8:00 pm,M-F,CST.
Ma ke check or money order (no stamps)
payable to:
Cobra Accessories Dept.
6500 West Co rtland St .Ch i ca g o,IL 60707
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.
$12.95
$24.95
Subtotal
(Tax if applicable)
Shipping/handling
Total
3736
29 NW ST manual3.3 6/15/99 12:50 PM Page 38
Notes
Notes
Notes
Notes
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29 NW ST manual3.3 6/15/99 12:50 PM Page 40
Notes
Notes
40
29 NW ST manual3.3 6/15/99 12:50 PM Page 41
Cobra Electronics Corporation
6500 West Cortland Street
Chicago, IL60707
29 NW ST
IfYou Think You Need Service
For te c h n i cal assistance,please call our Au to m a ted Help Desk which can assist
you by answering the most fre q u e n t ly asked questions about Co b ra prod u ct s.
(773) 889-3087
24 hours a day,7 days a week.
A Consumer Service Representative can be reached through this same number 8:00 am - 8:00
pm,Monday through Friday,CST.
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.
O pe rating Instru ctions
for your Co b ra 29 NW ST
CB Radio
Cobra Electronics Corp.© 1999
Printed in China
Part No. 480-191-P-001
“Ingenious Prod u cts for Easier Co m m u n i cat i o n .”
29 NW ST manual3.3 6/15/99 12:50 PM Page 43
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.)
The CB Story
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.”
FCCWarnings
All transmitter adjustments other than those
3
4
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 NW ST
5
1. CB transceiver 6. DC power cord
2. Microphone 7. FCC rules
3. Transceiver bracket 1. (not shown)
4. Microphone bracket
5. Operating Manual
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29 NW ST manual3.3 6/15/99 12:50 PM Page 44
Controls and Indicators
1. 4 - Pin Mi c ro p h o n e
Co n n e cto r
2. Power On/Off,Volume
3. Squelch
4. Dynamike
5. RF Gain
6. Dimmer
7. SWR CAL
8. Channel Selector
9. LED Channel Display
1 0 . Sound Tracker™ LED
11 . RX (Receive)/ TX (Transmit)
LED Indicator
12 . Sound Tracker™ On/Off
13 . Channel 19/Channel 9/
Normal Switch
14 . Tone Hi/Nor
1 5 . CB/PA Switch
16 . NB/ANL ANL Off Switch
17 . S/RF SWR CAL Switch
1 8 . Signal Strength Meter
1 9 . Microphone
Back Side
2 0 . Public Address Speaker
Jack
2 1 . External Speaker Jack
2 2 . Antenna Connector
2 3 . Power Jack
1 8
1
1 6
1 7
2 4 5
3
1 9
1 3
1 1
1 41 5
6 7 8
2 0 2 1
2 2 2 3
1 0
1 2
Our Thanks to You
Thank you for purchasing the Cobra 29 NW ST CB
Radio.Properly used,this Cobra product will give
you many years of reliable service.
SoundTracker
TM
“Cuts noise coming in...strengthens signals
going out.”
This Patent pending technology dramatically
improves transmission and reception of CB
signals.
The revolutionary SoundTrackerTMSystem reconfigures the transmission signal which allows it to
be transferred more efficiently through cluttered
airwaves.
9
At the same time,it significantly reduces the
amount of static on all incoming CB signals.
The end result is a cleaner, clearer sounding
reception of signals and a more powerful
transmission which dramatically improves
CB communications.
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
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