How to Use Your
Cobra 29 WX NW BT
Contents
Features..................................................................................................1
The CB Story.........................................................................................A1
FCC Regulations
FCC Warnings
Included Accessories
Features of This Product
•
•
•
•
•
•
7 Weather Channels
Controls & Indicators.......................................................................A2
Our Thanks to You .............................................................................A3
Emergency Weather Alert
Bluetooth® Connectivity
40 CB Radio Channels
SoundTracker® System
™
SoundTracker
Customer Support
Installation
Location .............................................................................................2
Mounting and Connection .........................................................2
Antennas
CB Antenna.......................................................................................6
Marine Installation .........................................................................6
Ignition Noise Interference ..........................................................7
Operating Your 29 WX NW BT
Heavy-Duty Dynamic
Microphone
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
NB-ANL/ANL/Off (Noise Blanker/Automatic.........................16
Noise Limiter Switch)
•
•
•
•
Full 4 Watts AM RF Power Output
SWR Calibration Meter
Instant Channel 19 and 9
Front Panel 6-Pin Microphone
Connector
CB/WX Switch...................................................................................17
RF Gain Control................................................................................17
Dimmer Switch................................................................................18
Setting Squelch ...............................................................................18
To Transmit........................................................................................20
•
Switchable Automatic Noise
Limiter & Noise Blanker
®
Setting Dynamike .........................................................................20
•
•
•
•
•
•
Adjustable Dynamike Boost
Tactile Controls
Transmit..............................................................................................21
RF Meter.............................................................................................22
External Speaker .............................................................................23
PA (Public Address) ........................................................................24
Weather Channels ..........................................................................26
Home And Office Set-Up .............................................................28
Temporary Mobile Set-Up ...........................................................29
How Your CB Can Serve You..........................................................30
A Few Rules You Should Know..................................................30
Channel 9 Emergency Messages..............................................30
Weather Channel Messages .......................................................31
CB 10 Codes......................................................................................32
Frequency Ranges.............................................................................34
29 WX NW BT Specifications ........................................................35
Warranty Information .....................................................................36
Optional Accessories .................................................................37-38
Order Form ...........................................................................................39
If You Need Service/Trademark Info ......................Back Cover
9 Ft Mic Cord
Illuminated Front Panel
Dimmer Control
RF Gain
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
PERSONNEL
1
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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 under-
side of the dash with the microphone bracket
beside it.
Mounting and Connection
Mounting and
Connection
1
Hold the radio with the mounting bracket in
the exact desired location. If there is no inter-
ference, remove the bracket and use it as a
template to mark the location for the mount-
ing screws.
Note
The transceiver is held in the
universal mounting bracket by
two thumbscrews which allow
for adjustment at a convenient
angle.
3
Connect the antenna cable plug to the recep-
tacle marked “ANT” on the back of the unit.
The bracket includes two self-
tapping screws and star wash-
ers. The mounting must be
mechanically strong, conve-
niently located.
2
Drill the holes and secure the bracket.
continued
2
3
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Installation
Installation
Note
Before installing the CB radio,
visually check the vehicle’s
battery connection to deter-
mine which terminal, positive
or negative, is grounded (pos-
itive is the larger of the two)
to the engine block (or chas-
sis). A negatively grounded
vehicle has its negative lead
grounded to the chassis.
6
7
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 sup-
plied. Bracket should be
placed under the dash
so microphone is readily
accessible.
Note
Connecting to an accessory fuse
prevents the unit from being left
on accidentally, and also per-
mits operating the unit without
running the engine.
4
5
Note
In a negative grounded vehicle, connect the
red lead of the DC power cord to an accessory
12 volt fuse.
In positive ground vehicles the
red wire goes to the chassis and
the black wire is connected to
the ignition switch.
Connect the black lead to the negative side of
the vehicle. This is usually the chassis. Any con-
venient location with a good electrical contact
(remove paint) may be used.
Note
OFF
When connected to an accesso-
ry fuse, unit will self test the
emergency weather alert auto-
matically when ignition is
8
Attach the 6-pin microphone cable to recepta-
cle on front of unit and Install unit in bracket
securely.
turned on. Turns itself on & off.
4
5
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Antennas
CB Antenna
Note
Ignition Noise Interference
Use of a mobile receiver at low signal levels is
CB Antenna
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 back-
ground 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 signifi-
cantly discharge the vehicle’s battery.
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 maxi-
mum power output. Cobra loaded type antenna
models are highly recommended for most instal-
lations. For models with Weather Feature (WX), a
Dual Band (Center Load/Base Load) antenna is
recommended. Consult your Cobra dealer for fur-
ther details, or call 773.889.3087 and speak to a
Cobra representative.
For optimum performance in
passenger cars the ideal anten-
na location is on the center of
the roof. Second choice is on the
center of the trunk.
Note
Even though the Cobra 29 WX NW BT has an
automatic noise limiter, in some installations igni-
tion interference may be high enough to make
good communications impossible. Many possibili-
ties 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.
Because many newer trucks
feature fiberglass door skins, the
outside mirror must be ground-
ed to the chassis via a ground
strap, if the antenna is mounted
on the mirror bracket.
Note
1
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 informa-
tion.
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.
6
7
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Operation
Operation
Turning On
Setting Channel Selector
Turning On
Setting Channel
Selector
Make sure the power cord, antenna and micro-
phone are connected to their proper connectors
before starting.
29 WX NW
NB/
ANL
ANL
CH19
CH9
CB
CB
ANT
RX/TX
WX
WX
PA
OFF
NOR
RF GAIN
WEATHER T BACK
SWR CAL
29 WX N
M
3
4
SWR
RRF
2
3
CAL
S/RF
SWR
CAL
NB/
ANL
ANL
CB
2
5
1
6
7
SIG 1
3
5
7
9
+30dB
PA
OFF
RF GAIN
VOL
SQL DYNA
DIM
AX MIN
MAX
1
Select
one of forty channels and adjust
OFF
MIN
MAX MIN
MAX
volume. The selected channel is indicated by
the LED readout directly above the channel
selector knob
1
The CB/PA button should be in the
CB position.
29 WX N
SWR
RRF
2
3
CAL
NB/
ANL
ANL
S/RF
SWR
CAL
CB
SIG 1
3
5
7
9
+30dB
PA
OFF
RF GAIN
VOL
SQL DYNA
DIM
OFF
MIN
MAX MIN
MAX
2
Rotate the On/Off Volume knob
a normal listening level.
clockwise to
8
9
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Operation
Operation
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 opti-
mum performance.
PUSH &
HOLD
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).
29 WX NW
NB/
ANL
ANL
CH19
CH9
CB
CB
ANT
RX/TX
WX
WX
PA
OFF
NOR
RF GAIN
WEATHER T BACK
SWR CAL
M
3
4
2
5
3
Push and hold mic button.
1
6
7
AX MIN
MAX
Note
29 WX NW
The reading will be slightly high-
er on Channels 1 and 40 com-
pared to Channel 20.
NB/
ANL
ANL
CH19
CH9
CB
CB
ANT
RX/TX
WX
1
Select
channel 20.
WX
PA
OFF
NOR
RF GAIN
WEATHER T BACK
SWR CAL
M
3
4
2
5
1
6
7
29 WX NW
SWR
RRF
2
3
CAL
S/RF
SWR
CAL
NB/
ANL
ANL
CB
MAX MIN
MAX
SIG 1
3
5
7
9
+30dB
W
PA
OFF
RF GAIN
VOL
SQL DYNA
DIM
4
While holding mic
button adjust the
SWR
RF
2
3
CAL
1
SWR CAL knob so the
meter needle swings
SIG 1
3
5
7 9 +30dB
OFF
MIN
MAX MIN
MAX
to the CAL M mark on
the meter (located on the right).
2
Switch to the CAL position.
continued
10
11
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Operation
Operation
Selecting A Channel
Selecting A
Channel
29 WX N
SWR
RRF
2
3
CAL
S/RF
SWR
CAL
NB/
ANL
ANL
CB
SIG 1
3
5
7
9
+30dB
29 WX NW
PA
OFF
NB/
ANL
ANL
CH19
CH9
CB
CB
Note
RF GAIN
VOL
SQL DYNA
DIM
ANT
RX/TX
WX
Note
Switch to 9 (Emergency) or 19
(Information) for instant access
to these channels.
WX
PA
OFF
NOR
When switched to SWR posi-
tion 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 recalibration
steps.
RF GAIN
WEATHER T BACK
SWR CAL
M
3
4
2
5
OFF
MIN
MAX MIN
MAX
1
6
7
MAX MIN
MAX
5
6
While still holding down the mic button, set
the S/RF SWR CAL switch to the SWR position,
to read the SWR reading.
1
Switch to NOR to select desired channel.
Repeat the same steps two through five on
Channel 1 and 40. This will check SWR for all
channels.
S-Meter
S-Meter
Swings proportionately to strength of incoming
signal when receiving.
To Receive
To Receive
29 WX N
SWR
RRF
2
3
CAL
NB/
ANL
ANL
S/RF
SWR
CAL
CB
SWR
RRF
2
3
CAL
NB/
ANL
ANL
S/RF
SWR
SIG 1
3
5
7
9
+30dB
PA
OFF
SIG 1
3
5
7 9 +30dB
RF GAIN
VOL
SQL DYNA
DIM
OFF
CAL
VOL
SQL DYNA
DIM
OFF
MIN
MAX MIN
MAX
1
The S/RF-SWR-CAL switch must be in the
S/RF position to read the meter.
1
Rotate the
On/Off Volume knob clockwise
the green RT/TX LED will be illuminated.
12
13
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Operation
Operation
To Answer Calls
®
Note
Bluetooth
Bluetooth
Note
1
Press and release the BT Button when the cell phone ring
is heard through the 29 WX NW BT speaker. The BT LED will
light steadily to indicate a call is in progress.
For best audio quality while
using the Bluetooth feature,
place your cell phone at least
12 inches away from the
29 WX NW BT.
Calls on a Bluetooth enabled cell phone can be
routed through the 29 WX NW BT speaker or
external speaker accessory.
2
3
Speak into the 29 WX NW BT microphone.The CB function of
the unit and PTT Button will be disabled while a call is in
progress.
When cell phone calls are in
progress using the Bluetooth
feature, the CB functions of
the unit are disabled.
End the call by press and release of the BT Button.
A tone will sound and the BT LED will flash briefly.
BT LED
Indicator
CH19
ANT
RX/TX
WX
To Initiate Calls
CH9
Dial a number according to the cell phone manufacturer’s
instructions. The key press and other tones will be heard
through the 29 WX NW BT speaker.
1
2
BT Button
Press Send on the cell phone. The BT LED will light steadily
to indicate a call is in progress; and after a few seconds,
you will hear the ring tone for the number you dialed.
3
4
Once connected, speak into the 29 WX NW BT microphone.
End the call by press and release of the BT Button.
The BT LED will flash briefly.
To Pair with a Cell Phone
1
With 29 WX NW BT power On, press and hold the BT Button
for six seconds to enter Standby mode. A tone will sound
and the BT LED will flash for one minute to confirm entry
to Standby.
5
Redial a number by press and hold of the BT Button for
two seconds. A tone will sound; and after a few seconds,
you will hear the ring tone for the number you dialed.
Note
The external microphone can
be plugged into the rear of
the unit and clipped to a
pocket or lapel for hands-free
speech during calls.
Note
To Enable or Disable Voice Dialing
2
From Standby, press and hold the BT Button for four
seconds to enter Pairing mode.
If the paired cell phone supports voice dialing, press and
release the BT Button twice to toggle between enabling
and disabling this feature.
If no further pairing steps are
taken, the unit will time-out
and return to Standby after
five minutes. During the pair-
ing process, press and
A. First time pairing with a cell phone:
I. A tone will sound and the BT LED will flash rapidly
to confirm Pairing mode.
II. Follow the cell phone manufacturer's instruction
to enable its Bluetooth function and enter the PIN
(Personal Identification Number) 0000.
III. Successful pairing will be indicated by a tone and
brief flashing of the BT LED to confirm entry to
Connected mode. A pair record will also be established
for subsequent connections.
To Turn Off The Bluetooth Function
Press and hold the BT Button for six seconds to turn off
the Bluetooth function. Two short tones will sound and
the BT LED will turn Off and remain Off.
When the external
release the BT Button to can-
cel the pairing process.
microphone is plugged in,
the main microphone will not
pick up speech during calls
but will be fully functional
for CB operation.
To Re-pair The 29 WX NW BT To The Cell Phone
If pairing is lost while the 29 WX NW BT power is On, press and hold
the BT Button for four seconds to re-pair with the cell phone.
B. Subsequent pairings with a cell phone:
I. Follow any cell phone manufacturer instructions,
if needed, to enable the Bluetooth function.
II. Successful pairing will be indicated by a tone
and brief flashing of the BT LED to confirm entry
to Connected mode.
If the 29 WX NW BT is turned Off, it will retain the Bluetooth address
and automatically re-pair with the last cell phone used when
it is turned back On.
15
14
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Operation
Operation
NB-ANL/ANL/OFF (Noise
Blanker/Automatic Noise Limiter) Switch
NB-ANL/ANL/
OFF (Noise
Blanker/
RF Gain Control
The RF Gain is used to optimize reception in
strong or weak signal areas.
RF Gain Control
Automatic
Noise Limiter)
Switch
29 WX NW
SWR
RRF
2
3
CAL
29 WX NW
S/RF
SWR
CAL
NB/
ANL
ANL
CB
CB
SWR
RRF
2
3
CAL
S/RF
SWR
CAL
NB/
ANL
ANL
CH19
CH9
CB
CB
SIG 1
3
5
7
9
+30dB
WX
PA
OFF
SIG 1
3
5
7
9
+30dB
WX
OFF
NOR
RF GAIN
W
VOL
SQL DYNA
DIM
Note
RF GAIN
WEATHER
VOL
SQL DYNA
DIM
2
3
4
2
5
The RF Gain is used to optimize
reception in weak signal areas. .
1
1
OFF
MIN
MAX MIN
MAX
OFF
MIN
MAX MIN
MAX
Note
The RF noise blanker is very
effective in reducing repetitive
noises such as ignition interfer-
ence.
1
When switched to ANL the Automatic Noise
Limiter is activated. This helps reduce noise
created by the vehicle’s electronics.
1
Rotate the
RF Gain knob counterclockwise
to reduce gain in strong signal areas. In weak
signal areas turn clockwise to increase gain.
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.
16
17
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Operation
Operation
Gate open
Dimmer Switch
Dimmer Switch
29 WX NW
SWR
RRF
2
3
CAL
S/RF
SWR
CAL
NB/
ANL
ANL
CH19
CH9
CB
CB
STRONG SIGNALS
MEDIUM SIGNALS
WEAK SIGNALS
NOISE
SIG 1
3
5
+30dB
WX
PA
OFF
NOR
RF GAIN
WEATHER
VOL
SQL DYNA
DIM
3
4
2
5
1
29 WX NW
SWR
RRF
2
3
CAL
S/RF
S
CAL
NB/
ANL
ANL
CH19
CH9
CB
CB
Note
R
OFF
MIN
MAX MIN
MAX
SIG 1
3
5
7
9
+30dB
The Dimmer controls the
brightness of the front panel,
signal strength meter and
channel display.
WX
PA
NOR
RF GAIN
WEATHER T BACK
VOL
SQL DYNA
DIM
2
3
4
Full
counterclockwise rotation opens the
2
5
“gate” allowing all signals in.
1
6
7
OFF
MIN
MAX MIN
MAX
29 WX NW
SWR
RRF
2
3
CAL
S/RF
SWR
CAL
NB/
ANL
ANL
CH19
CH9
CB
1
CB
Rotate the
Dimmer knob clockwise for maxi-
SIG 1
7
9
+30d
mum brightness;counter-clockwise for minimum
WX
PA
OFF
NOR
RF GAIN
WEATHER
VOL
SQL DYNA
DIM
3
4
Gate set to Desired
Setting Squelch
Squelch is the “control gate” for incoming signals.
2
5
Setting Squelch
Squelch Setting (DSS)
1
OFF
MIN
MAX MIN
MAX
STRONG SIGNALS
MEDIUM SIGNALS
WEAK SIGNALS
NOISE
Gate closed
29 WX NW
SWR
RRFF
2
3
CAL
S/RF
SWR
CAL
NB/
ANL
ANL
CH19
CH9
STRONG SIGNALS
CB
CB
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.
SIG 1
3
5
7
WX
PA
OFF
NOR
RF GAIN
WEATHER
VOL
SQL DYNA
DIM
MEDIUM SIGNALS
WEAK SIGNALS
NOISE
3
4
2
5
1
OFF
MIN
MAX MIN
MAX
1
Full
clockwise rotation closes the gate
allowing only very strong signals to enter.
18
19
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Operation
Operation
To Transmit
Transmit
To Transmit
Transmit
29 WX NW
NB/
ANL
ANL
CH19
CH9
Caution!
CB
CB
ANT
PUSH &
HOLD
RX/TX
WX
Be sure the antenna is properly
connected to the radio before
transmitting. Prolonged trans-
mitting without an antenna, or
a poorly matched antenna,
could cause damage to the
transmitter.
WX
PA
OFF
NOR
RF GAIN
WEATHER T BACK
SWR CAL
M
3
4
2
5
1
6
7
AX MIN
MAX
Be sure to read the F.C.C. Rules
and Regulations included with
this unit before transmitting.
1
Select desired
channel.
1
Setting Dynamike®
This controls the microphone sensitivity
(outgoing audio level).
Push and hold mic button to transmit.
Setting
Dynamike
®
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.
29 WX NW
SWR
RRF
2
3
CAL
S/RF
SWR
CAL
NB/
ANL
ANL
CH19
CH9
CB
CB
SIG 1
3
5
7
9
+30dB
WX
PA
OFF
NOR
RF GAIN
WEATHER
VOL
SQL DYNA
DIM
3
4
2
5
1
OFF
MIN
MAX MIN
MAX
1
Initially, set fully
clockwise so that maxi-
mum voice volume is available. Dynamike
may have to be reduced in some conditions.
20
21
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Operation
Operation
External Speaker
Note
RF Meter
External Speaker
The external speaker jack is used for remote
receiver monitoring.
RF Meter
This meter swings proportionately to the RF
output (outgoing signal) while transmitting.
29 WX N
SWR
RRF
2
3
CAL
S/RF
SWR
CAL
NB/
ANL
ANL
The external speaker should
have 8-ohm impedance and be
rated to handle at least 4.0
watts. When the external speak-
er is plugged in, the internal
speaker is automatically discon-
nected. See accessory page 37.
CB
SIG 1
3
5
7
9
+30dB
PA
OFF
RF GAIN
VOL
SQL DYNA
DIM
OFF
MIN
MAX MIN
MAX
Note
1
1
The S/RF-SWR-CAL switch must be in the
S/RF position.
Connect an external speaker to the external
speaker jack on the rear panel.
Cobra external speakers are
rated at 10 watts.
23
22
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Operation
Operation
PA (Public Address)
PA (Public
Address)
PUSH &
HOLD
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
Connect an external PA speaker to the PA jack
3
on the rear panel.
Push and hold microphone button and speak
in a normal voice.Your voice will now transmit
on the PA speaker.
Note
Activity on the CB channel will
be heard through the PA speak-
er. Adjust Volume Control to a
normal listening level.
29 WX N
SWR
RRF
2
3
CAL
S/RF
SWR
CAL
NB/
ANL
ANL
CB
29 WX NW
SIG 1
3
5
7
9
+30dB
SWR
RRF
2
3
CAL
S/RF
SWR
CAL
NB/
ANL
ANL
CH19
CH9
PA
OFF
CB
CB
RF GAIN
VOL
SQL DYNA
DIM
SIG 1
3
5
7
9
+30dB
WX
PA
OFF
NOR
RF GAIN
WEATHER
VOL
SQL DYNA
DIM
3
4
2
5
OFF
MIN
MAX MIN
MAX
1
OFF
MIN
MAX MIN
MAX
2
Set CB/PA switch to PA position.
4
Adjust PA speaker volume with the
Dynamike control.
24
25
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Operation
Operation
What is Weather Radio
What You Should Know About Weather
Weather Radio
Weather
Information
NOAA Weather Radio (NWR) is a service of the
National Oceanic and Atmospheric Administration
(NOAA), of the U.S. Department of Commerce. 380
NWR stations are in operation by the U.S.
Government in addition to several NWR stations
that are maintained by private interest groups. The
capability is to supplement warnings by sirens and
by commercial radio and television. The 7 National
Weather Channels provide full coverage to keep
you informed of weather conditions, 24 hours a
day, 7 days a week.
If threatening weather is nearby, the National
Weather Service may broadcast a 10 second alert
tone. This tone will be heard through the CB, even
if the CB/WX Switch is in the CB mode or the unit
is turned off.
Note
This enables you to monitor CB frequencies and
still be warned by the National Weather Service
Emergency Alert. When you hear the alert, place
the CB/WX switch in the WX position.You will
then be able to hear the Weather Warning
Broadcast.
For a list of weather frequencies
see specification in the
Frequency Ranges section on
page 34.
If you wish to receive a listing of
NOAA ‘Weather Radio
Transmitter locations, contact
your nearest National Weather.
Operating Weather Channel Selector
You can completely disable the Emergency
Weather Alert feature by turning the Weather
Weather
Channels
ø
Channel Selector to the position.
29 WX NW
NB/
ANL
ANL
CH19
CH9
CB
CB
Your 29 WX NW BT has a special auto squelch cir-
cuit for weather transmission which disables your
squelch control.
ANT
RX/TX
WX
Service Office, or write to:
National Weather Service
(Attn: W/OM11) NOAA
Silver Springs, MD 20910.
PA
OFF
NO
RF GAIN
WEATHER BACK
SWR CAL
M
3
4
2
5
If you are using the CB mode, remember to
change the CB/WX Switch from CB to WX every so
often to make sure you are continually tuned to
the clearest/closest weather band channel in case
an alert is broadcast.
1
6
7
AX MIN
MAX
For ideal weather reception use
a dual band antenna (center
load/baseload).
When CB/WX is on WX position Weather Receiver
is activated.
1
Place CB/WX Switch in the WX position.
2
Turn the Weather Channel Selector (1-7) until
you find the Weather Channel with the clear-
est reception. Sometimes more than one
channel can be received, however, the closest
broadcast to you will be the one with the
clearest signal.
27
26
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Home And Office Set-Up
Temporary Mobile Set-Up
Base Station Operation
(From 120V AC House Current)
To operate your transceiver from home or office
you will need a 13.2 volt DC Power Pack rated at a
minimum of 2 amps, and a properly installed base
station antenna.
Base Station
Operation
(From 120V AC
House Current)
2
3
Plug power cable into back of unit marked
“Power”. Be sure to observe polarity markings.
+
—
Warning!
Connect properly installed and matched base
station antenna.
Do not attempt to operate this
transceiver by connecting it
directly to 120V AC.
Temporary Mobile Operation
For temporary mobile operation you may want to Mobile Set-Up
Temporary
Note
purchase an optional cigarette lighter adapter
For further information call
Cobra Customer Service
1.773.889.3087.
from your COBRA dealer. This adapter and a mag-
netic mount antenna allow you to quickly “install”
your transceiver for temporary use.
1
Simply connect the red (+) and black (-)
leads of the transceiver to the corresponding
terminals of the power pack.
28
29
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How Your CB Can Serve You
How Your CB Can Serve You
• Warn of traffic problems
• Provide weather and road data
The FCC gives these examples of permitted and
prohibited messages for channel 9. These are
only guidelines and not all-inclusive:
• 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
Permitted Example Message
Yes
“Tornado sighted six miles north
of town.”
• Keep you alert while traveling
No
“Post number 10.
A Few Rules You Should Know
No tornado sighted.”
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.
Yes
“Out of gas on I-95 at mile
marker 211.”
B. You cannot blast others off the air by use of
illegally amplified transmitters or illegally
high antennas.
No
“Out of gas in my driveway.”
Yes
“Four car accident on I-94 at
Exit 11. Send police and
ambulance.”
C. You cannot use CB to promote illegal activities.
D. Profanity is not allowed.
E. You may not transmit music with a CB.
No
“Traffic moving smoothly on I-94.”
F. Selling of merchandise and/or services is
prohibited.
Yes
“Weather Bureau has issued
thunderstorm warning.
Bring sailboat into port.”
1. Set to channel 9 for emergencies
Channel 9
Emergency
Messages
Be sure antenna is properly connected.
No
“Attention motorists.
Weather Bureau advises snow
tomorrow will accumulate
4 to 6 inches.”
2. CB Distress Data
When transmitting an emergency, you should
request a “REACT BASE” and provide the CB
distress data (called CLIP):
Note
Yes
No
“Fire in building at 539 Main,
Evanston.”
C all Sign Identify yourself.
L ocation Be exact.
I njuries Number. Type. Trapped?
P roblem Give details and help needed.
If no response on channel 9,
try channels 19 or 14.
“Halloween patrol number 3.
All quiet.”
Transmit CLIP repeatedly so any monitor can assist.
30
31
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How Your CB Can Serve You
How Your CB Can Serve You
Code Meaning
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:
CB 10-Codes
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
Code Meaning
10-37 Wrecker needed at
10-38 Ambulance needed
10-39 Message delivered
10-41 Turn to channel
10-1
10-2
10-3
10-4
10-5
10-6
10-7
10-8
10-9
Receiving poorly
Receiving well
Stop transmitting
OK, message received
Relay message
10-42 Traffic accident at
10-43 Traffic tie up at
Busy, stand by
10-44 Have a message for
10-45 All units within range please report
10-50 Break channel
Out of service, leaving
In service, subject to call
Repeat message
10-60 What is next message number?
10-62 Unable to copy. Use phone
10-63 Net directed to
10-10 Transmission completed standing by
10-11 Talking too rapidly
10-12 Visitors present
10-64 Net clear
10-13 Advise weather/roads
10-16 Make pick up at
10-65 Awaiting your next message/assignment
10-67 All units comply
10-17 Urgent business
10-18 Anything for us?
10-19 Return to base
10-70 Fire at
10-71 Proceed, transmission in sequence
10-77 Negative contact
10-20 My location is
10-81 Reserve hotel room for
10-82 Reserve room for
10-21 Call by phone
10-22 Report in person to
10-23 Stand by
10-85 My address is
10-91 Talk closer to mic
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
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
32
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Frequency Ranges
29 WX NW BT Specifications
GENERAL
CHANNELS . . . . . . . . . . . . . . . . . . . . . . . . CB - 40 CH
FREQUENCY RANGE CB - 26.965 TO 27.405 MHZ
WX - 162.400 TO 162.550 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 . . . . . . . . . . . . . . . . . . . 13.2VDC nom. (positive or negative ground)
The COBRA 29 WX NW BT 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.
CURRENT DRAIN
TRANSMIT: AM FULL MOD., 1.5A (MAXIMUM)
RECEIVE: SQUELCHED, 0.3A;
FULL AUDIO OUTPUT, 1.2A (NOMINAL)
Channel
Freq.
Channel
Freq.
CB
CB
WX
Freq.
SIZE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5/8” D X 7-9/32”W X 2-13/63” H
WEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 LBS.
Channel In MHz Channel In MHz Channel In MHz
ANTENNA CONNECTOR . . . . . . . . . . . .UHF; SO-239
METER . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ILLUMINATED; INDICATES RELATIVE
POWER OUTPUT RECEIVED
1
2
3
4
5
26.965 21
26.975 22
26.985 23
27.005 24
27.015 25
27.215
27.225
27.255
27.235
27.245
1
2
3
4
5
6
7
162.400
162.425
162.450
162.475
162.500
162.525
162.550
SIGNAL STRENGTH, AND VSWR
Bluetooth Range
33' (10 meters)
TRANSMITTER
POWER OUTPUT . . . . . . . . . . . . . . . . . . .4 WATTS
MODULATION . . . . . . . . . . . . . . . . . . . . .AM (AMPLITUDE MODULATION)
FREQUENCY RESPONSE . . . . . . . . . . . .300 TO 3000 HZ
OUTPUT IMPEDANCE . . . . . . . . . . . . . . .50 OHMS, UNBALANCED
6
7
8
9
27.025 26
27.035 27
27.055 28
27.065 29
27.075 30
27.265
27.275
27.285
27.295
27.305
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
10
AUTOMATIC GAIN CONTROL (AGC) .LESS THAN 10 dB CHANGE IN AUDIO
OUTPUT FOR INPUTS FROM 10 TO 50,000
MICROVOLTS
RF GAIN RANGE . . . . . . . . . . . . . . . . . . . .40 dB
NOISE BLANKER . . . . . . . . . . . . . . . . . . . .RF TYPE
SQUELCH . . . . . . . . . . . . . . . . . . . . . . . . . .ADJUSTABLE;THRESHOLD LESS THAN 1µV
AUDIO OUTPUT POWER . . . . . . . . . . . .4 WATTS
FREQUENCY RESPONSE . . . . . . . . . . . .300 TO 3000 HZ
DISTORTION . . . . . . . . . . . . . . . . . . . . . . .LESS THAN 7% @3 WATTS @ 1000 HZ
BUILT-IN SPEAKER . . . . . . . . . . . . . . . . . .8 OHMS, 5W
EXTERNAL SPEAKER (NOT SUPPLIED) .8 OHMS; DISABLES INTERNAL SPEAKER
WHEN CONNECTED
11
12
13
14
15
27.085 31
27.105 32
27.115 33
27.125 34
27.135 35
27.315
27.325
27.335
27.345
27.355
16
17
18
19
20
27.155 36
27.165 37
27.175 38
27.185 39
27.205 40
27.365
27.375
27.385
27.395
27.405
PA SYSTEM
POWER OUTPUT . . . . . . . . . . . . . . . . . . .4 WATTS INTO EXTERNAL SPEAKER
EXTERNAL SPEAKER FOR PA . . . . . . . .8 OHMS 4 WATTS MIN.
(NOT SUPPLIED) . . . . . . . . . . . . . . . . . . . .THE PA SPEAKER ALSO MONITORS THE
RECEIVER; SEPARATE JACK PROVIDED
(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)
34
35
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Limited Two Year Warranty
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 38.
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.
Replacement Mounting
Bracket
Replacement Thumb Screws
Replacement DC Power Cord
For in vehicle use
634-081-9-001
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-
For in vehicle use
426-002-N-001
For in vehicle use
251-353-9-001
panied by proof of the date of first consumer purchase,
such as a duplicated copy of a sales receipt.
Cobra Electronics
Corporation
6500 West Cortland Street
Chicago, Illinois 60707
www,cobra.com
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.
21” Base Loaded Magnet
Mount Antenna
38” Base Loaded Magnet
Mount Antenna
Replacement Microphone
Bracket
For in vehicle use
741-080-9-001
HG A1000
HG A1500
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, conse-
quential or other damages; including, without limita-
tion, damages resulting from loss of use or cost of instal-
lation.
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 dam-
ages, so the above limitations may not apply to you.
Dynamic External
Speaker
Noise Canceling
With Talk Back
External Speaker
Noise Canceling
External Speaker
Replacement External
Bluetooth Microphone
MNA MIC
HG S100
HG S500
HG S300
36
37
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Notes
Optional Accessories
Ordering From U.S.A.
For Credit Card Orders
Call 773-889-3087 [Press one from the main menu] 8:00 a.m.
to 5:30 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
38
39
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29 WX NW BT
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.)
If You Think You Need Service
2
For technical assistance, please call our Automated Help Desk which can assist
you by answering the most frequently asked questions about Cobra products.
1
(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 - 5:30 pm, Monday through Friday, Central Time.
Technical assistance is also available on-line in the Frequently Asked Questions (FAQ) section at
Operating Instructions
for your Cobra 29 WX NW BT
29 WX NW
SWR
2
3
CAL
S/RF
SWR
CAL
NB/
ANL
ANL
CH19
CH9
CB
CB
R
R
F
F
RX/TX ANT
WX
FCC Regulations
SIG
1
3
5
7
9
+30dB
WX
PA
OFF
NOR
RF GAIN
WEATHER
T
BACK
SWR CAL
VOL
SQL DYNA
DIM
3
4
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 “broad-
casting.”
2
5
1
6
7
CB Radio
OFF
MIN
MAX MIN
MAX
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.”
3
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.
You may be asked to send your unit to the Cobra factory. It will be necessary to furnish the follow-
ing 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.
4
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.
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.
cb tranceiver
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.
5
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.
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 oper-
ator’s license.
Trademark Info
What’s Included with Your 29 WX NW BT
Cobra®, Dynamike®, Nothing Comes Close to a Cobra® and the snake design are registered
trademarks of Cobra Electronics Corporation, USA.
1. CB transceiver
2. Microphone
6. Operating Manual
7. DC power cord
6
Cobra Electronics Corporation™ is a trademark of Cobra Electronics Corporation, USA.
The Bluetooth® word mark and logo are registered trademarks owned by Bluetooth SIG, Inc.
©2008 Cobra Electronics Corporation
Printed in China
Part No. 480-532-P-001 Version A
3. External Bluetooth® Mic 8. FCC rules
4. Transceiver bracket
5. Microphone bracket
(not shown)
Nothing Comes Close to a Cobra®
A1
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Controls and Indicators
Our Thanks to You
1. 6-Pin Microphone
Thank you for purchasing the Cobra 29 WX NW BT
CB Radio. Properly used, this Cobra product will
give you many years of reliable service.
Connector
2. Power On/Off, Volume
3. Squelch
Cobra Customer Service
19
Live operators are available
M-F 8:00 am - 5:30 pm Central
Time at: 773-889-3087
4. Dynamike
Customer Support
5. Dimmer
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.
6. RF Gain
Automated Technical Assistance
available 24 hours a day, seven
days a week. E-mail questions
7. Weather Channel Selector
8. Talk Back Selector
9. SWR Calibration
10. Channel Selector
11. LED Channel Display
NOTE
Cobra on the World Wide Web:
Frequently Asked Questions
(FAQ) can be found on-line at:
15 14
13
16
17
NB/
ANL
ANL
18
12
This device complies with part 15 of the FCC Rules.
Operation is subject to the following two (2) 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.
29 WX NW
12. ANT/Bluetooth® Indicator
SWR
2
3
CAL
S/RF
CH19
CB
CB
11
R
R
F
F
ANT
RX/TX
WX
19
SWR
CAL
CH9
SIG
1
3
5
7
9
+30dB
WX
PA
OFF
NOR
13. RX (Receive)/TX (Transmit),
RF GAIN
WEATHER T BACK
SWR CAL
VOL
SQL DYNA
DIM
3
4
WX (Weather) LED Indicator
2
5
1
6
7
14. Channel 19/Channel 9/
OFF
MIN
MAX MIN
MAX
Normal Switch
The manufacturer is not responsible for any radio or tv inter-
ference caused by unauthorized modifications to this equip-
ment. Such modifications could void the user’s authority to
operate the equipment.
1
6
7
8
10
2
3
4
5
15. CB/WX Weather Switch
16. CB/PA Switch
9
17. NB/ANL ANL Off Switch
18. S/RF SWR CAL Switch
19. Signal Strength Meter
Microphone
Back Side
22
20 21
20. External Mic Jack
21. Public Address Speaker
Jack
22. External Speaker Jack
23. Antenna Connector
24. Power Jack
24
23
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A2
A3
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