25 WX NW ST Manual 3.3
6/15/99 1:10 PM
Page 1
How to Use Your
Cobra 25 WX NW ST
Contents
Features...........................................................................................1
The CB Story..................................................................................A1
FCC Regulations
FCC Warnings
Included Accessories
Controls & Indicators ................................................................A2
Our Thanks to You ......................................................................A3
SoundTracker™
Customer Support
Installation
Location.......................................................................................2
Mounting and Connection...................................................2
Antennas
CB Antenna................................................................................6
Marine Installation...................................................................6
Ignition Noise Interference ...................................................7
Operating Your 25 WX NW ST
Turning On Your CB.................................................................8
Setting Channel Selector.......................................................9
To Receive ...................................................................................10
Selecting a Channel................................................................10
S-Meter.........................................................................................11
SoundTracker™ System.........................................................12
Activating SoundTracker™ ..................................................13
NB, Off (Noise Blanker) Switch.............................................14
ANL (Automatic Noise Limiter) Switch.............................14
Dim Control................................................................................15
RF Gain Control.........................................................................15
Setting Squelch.........................................................................16
To Transmit.................................................................................18
Transmit.......................................................................................18
RF Meter......................................................................................19
External Speaker.......................................................................19
PA (Public Address)..................................................................20
Weather Channels....................................................................23
Home And Office Set-Up.......................................................24
Temporary Mobile Set-Up.....................................................25
How Your CB Can Serve You...................................................26
A Few Rules You Should Know............................................26
Channel 9 Emergency Messages.......................................26
Weather Channel Messages.................................................27
CB 10 Codes...............................................................................28
Frequency Ranges ......................................................................30
25 WX NW ST Specifications..................................................31
Warranty Information ..............................................................32
Optional Accessories ..........................................................33-34
Order Form ....................................................................................35
If You Think You Need Service .............................Back Cover
Features of This Product
• 40 CB Radio Channels
• SoundTracker ™ System
• Heavy-Duty Dynamic
Microphone
• Full 4 Watts AM RF Power Output
• Instant Channel 19 and 9
• Front Panel 4-Pin Microphone
Connector
• Switchable Noise Blanker
• Adjustable Dynamike Boost
• Tactile Controls
• 7 Weather Channels
• Emergency Weather Alert
• 9 Ft Mic Cord
• Illuminated Front Panel
• Dimmer Control
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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Page 2
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 underside of the dash with the microphone bracket
beside it.
Mounting and
Connection
Mounting and Connection
1
Note
The transceiver is held in the
universal mounting bracket by
two thumbscrews which allow
for adjustment at a convenient
angle.
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.
The bracket includes two selftapping screws and star washers. The mounting must be
mechanically strong, conveniently located.
2
Drill the holes and secure the bracket.
continued
2
3
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Page 4
Installation
Installation
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 t wo)
to the engine block (or chassis).A negatively grounded
vehicle has its negative lead
grounded to the chassis.
Note
When connected to an accessory fuse, unit will self test the
emergency weather alert automatically when ignition is
turned on. Turns itself on & off.
4
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 mar ked
“Power”. Be sure to observe polarity markings.
7
Mount the microphone
bracket on the right side
of the unit (driver’s left)
using two screws supplied. Bracket should be
placed under the dash
so microphone is readily
accessible.
8
Attach the 4-pin microphone cable to receptacle on front of unit and Install unit in bracket
securely.
5
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Page 6
Antennas
Ignition Noise Interference
CB Antenna
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 maxiNote
mum power output. Cobra loaded type antenna
For optimum performance in
models are highly recommended for most instalpassenger cars the ideal anten- lations. For models with Weather Feature (WX), a
na location is on the center of
Dual Band (Center Load/Base Load) antenna is
the roof. Second choice is on the recommended. Consult your Cobra dealer for furcenter of the trunk.
ther details, or call 773.889.3087 and speak to a
Cobra representative.
Note
Because many newer trucks
feature fiberglass door skins, the
outside mirror must be grounded to the chassis via a ground
strap, if the antenna is mounted
on the mirror bracket.
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 25 WX 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.
Note
3-way Combination Antennas
are also available which allow
operation of all three bands
(AM-FM & CB),using a single
antenna. However, this type of
antenna usually results in less
than normal transmit and
receive range when compared
to a standard-type “Single
Band” CB antenna. Call
773.889.3087 for further information.
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.
6
7
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Page 8
Operation
Operation
Turning On
Setting Channel
Selector
Setting Channel Selector
Turning On
Make sure the power cord, antenna and microphone are connected to their proper connec tors
before starting.
1
8
1
The CB/ANL/PA button should be in the
CB/ANL position and CB/WX on CB position.
2
Rotate the On/Off Volume knob
a normal listening level.
Select
one of forty channels and adjust
volume.The selected channel is indicated by
the LED readout directly above the channel
selector knob
clockwise to
9
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Page 10
Operation
To Receive
Operation
S-Meter
S-Meter
To Receive
Swings proportionately to strength of incoming
signal when receiving.
1
Selecting A
Channel
Rotate the
On/Off Volume knob clockwise
the green RT/TX/WX LED will be illuminated.
Selecting A Channel
Note
Switch to 9 (Emergency) or 19
(Information) for instant access
to these channels.
1
10
Switch to
NOR to select desired channel.
11
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Page 12
Operation
Operation
The SoundTracker TM System
Note
SoundTracker™ gives you
clearer, cleaner reception to
improve CB communications
while on the air.
Activating SoundTracker™
While previous systems only “blanket out” or limit
noise in higher sound frequencies, the revolutionary new SoundTrackerTM System 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 SoundTracker TM Works
1
Activating
SoundTracker™
Push and release the
ST button. Red LED
is illuminated when SoundTracker™ is
turned on.
On Reception - “Cuts noise coming in”
With a normal CB, distant signals fall below
the squelch level and are unintelligible. With a
SoundTrackerTM CB, 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.
On Transmission - “Strengthens signals going out”
A SoundTrackerTM CB 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.
12
13
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Page 14
Operation
NB, OFF
(Noise Blanker )
Switch
Operation
NB, OFF (Noise Blanker) Switch
Dim Control
Dim/Dyna
Control
Note
The RF noise blanker is very
effective in reducing repetitive
noises such as ignition interference.
Note
The Dim controls the brightness
of the front panel,signal strength
meter and channel display.
1
When switched to NB position the RF Noise
Blanker is activated, providing increased noise
filtration.
When switched to OFF position Noise
Blanking Filtration will be turned off.
ANL (Automatic ANL (Automatic Noise Limiter) Switch
Noise Limiter)
Switch
1
14
When switched to CB/ANL the Automatic
Noise Limiter is activated.This helps reduce
noise created by the vehicle’s electronics.
1
Rotate the
DIM knob clockwise for
maximum brightness; counter-clockwise
for minimum.
Setting Dynamike
This controls the microphone sensitivity
(outgoing audio level).
1
Setting
Dynamike
Initially, set fully
clockwise so that maximum voice volume is available. Dynamike
may have to be reduced in some conditions.
15
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Page 16
Operation
Setting Squelch
Operation
Gate set to Desired
Squelch Setting (DSS)
Setting Squelch
Squelch is the “control gate” for incoming signals.
Gate closed
3
1
Full
clockwise rotation closes the gate
allowing only very strong signals to enter.
2
Full
counterclockwise rotation 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
clockwise just until the noise stops. This is the
DSS setting.
Gate open
16
17
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Page 18
Operation
To Transmit
Operation
To Transmit
RF Meter
RF Meter
This meter swings proportionately to the RF
output (outgoing signal) while transmitting.
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.
1
Select desired
channel.
Transmit
External Speaker
External Speaker
The external Speaker jack is used for remote
receiver monitoring.
Transmit
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.
1
1
18
Push and hold mic button to transmit.
Transmitter is now activated.When transmitting, hold the microphone two inches from
your mouth and speak in a clear, normal voice.
Release to receive.
Note
Connect an external speaker to the external
speaker jack on the rear panel.
Cobra external speakers are
rated at 10 watts.See
Accessories page 39.
19
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Page 20
Operation
PA (Public
Address)
Operation
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.
1
Connect an external PA speaker to the PA jack
on the rear panel.
3
Push and hold microphone button and speak
in a normal voice.Your voice will sound on the
PA speaker.
4
Adjust PA speaker volume with the
Dynamike control.
Note
Activity on the CB channel will
be heard through the PA speaker. Adjust volume control to a
normal listening level.
2
20
Set
CB/ANL PA switch to PA position.
21
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Page 22
Operation
Weather Radio
Weather
Channels
Operation
What is Weather Radio
What You Should Know About Weather
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.
This enables you to monitor CB frequencies and
still be warned by the National Weather Service
Emergency Alert. When you hear the aler t, place
the CB/WX switch in the WX position. You will
then be able to hear the Weather Warning
Broadcast.
You can completely disable the Emergency
Weather Alert feature by turning the Weather
Channel Selector to the off position.
Your 25 WX NW ST has a special auto squelch circuit for weather transmission which disables your
squelch control.
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.
Operating Weather Channel Selector
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.
22
23
Weather
Information
Note
For a list of weather frequencies
see specification in the
Frequency Ranges section on
page 32.
If you wish to receive a listing of
NOAA ‘Weather Radio
Transmitter locations, contact
your nearest National Weather.
Service Office, or write to:
National Weather Service
(Attn:W/OM11) NOAA
Silver Springs, MD 20910.
For ideal weather reception use
a dual band antenna (center
load/baseload).
25 WX NW ST Manual 3.3
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Page 24
Home And Office Setup
Base Station
Operation
(From 120V AC
House Current)
Temporary Mobile Set-Up
Base Station Operation
(From 120V AC House Current)
To operate your transceiver from home or office
you will need a 13.8 volt DC Power Pack rated at a
minimum of 2 amps, and a properly installed base
station antenna.
Warning!
Do not attempt to operate this
transceiver by connecting it
directly to 120 vac.
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
Note
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.
For further information call
Cobra Customer Service
1.773.889.3087.
1
24
Simply connect the red (+) and black (-)
leads of the transceiver to the corresponding
terminals of the power pack.
25
Temporary
Mobile Set-Up
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Page 26
How Your CB Can Serve You
•
•
•
•
•
•
•
•
•
A Few Rules
You Should
Know
Channel 9
Emergency
Messages
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
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.”
“Post number 10.
No tornado sighted.”
No
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.
Yes
No
Yes
No
Yes
1. Set to channel 9 for emergencies
Be sure antenna is properly connected.
No
2. CB Distress Data
When transmitting an emergency, you should
request a “REACT BASE”and provide the CB
distress data (called CLIP):
Note
C
L
I
P
If no response on channel 9,
try channels 19 or 14.
all Sign
ocation
njuries
roblem
Identify yourself.
Be exact.
Number.Type. Trapped?
Give details and help needed.
Yes
No
“Out of gas on I-95 at mile
marker 211.”
“Out of gas in my driveway.”
“Four car accident on I-94 at
Exit 11. Send police and
ambulance.”
“Traffic moving smoothly on I-94.”
“Weather Bureau has issued
thunderstorm warning.
Bring sailboat into port.”
“Attention motorists.
Weather Bureau advises snow
tomorrow will accumulate
4 to 6 inches.”
“Fire in building at 539 Main,
Evanston.”
“Halloween patrol number 3.
All quiet.”
Transmit CLIP repeatedly so any monitor can assist.
26
27
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Page 28
How 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
provide quick and easy communication,especially
in noisy areas. Following are some of the more
common codes and meanings:
Code
10-1
10-2
10-3
10-4
10-5
10-6
10-7
10-8
10-9
10-10
Meaning
Receiving poorly
Receiving well
Stop transmitting
OK,message received
Relay message
Busy, stand by
Out of service, leaving
In service, subject to call
Repeat message
Transmission completed standing by
10-11
Talking too rapidly
10-12
10-13
10-16
10-17
10-18
10-19
10-20
10-21
10-22
10-23
10-24
10-25
10-26
10-27
10-28
Visitors present
Advise weather/roads
Make pick up at
Urgent business
Anything for us?
Return to base
My location is
Call by phone
Report in person to
Stand by
Completed last assignment
Can you contact
Disregard last info
Moving to channel
Identify your station
28
How Your CB Can Serve You
Code
10-29
10-30
10-33
10-34
10-35
10-36
10-37
10-38
10-39
10-41
10-42
10-43
10-44
10-45
10-50
10-60
Meaning
Time is up for contact
Does not conform to FCC rules
Emergency traffic
Trouble at this station
Confidential information
Correct time is
Wrecker needed at
Ambulance needed
Message delivered
Turn to channel
Traffic accident at
Traffic tie up at
Have a message for
All units within range please repor t
Break channel
What is next message number?
10-62
10-63
10-64
Unable to copy. Use phone
Net directed to
Net clear
10-65
Awaiting your next message/assignment
10-67
10-70
10-71
All units comply
Fire at
Proceed, transmission in sequence
10-77
Negative contact
10-81
10-82
10-85
Reserve hotel room for
Reserve room for
My address is
10-91
Talk closer to mic
10-93
10-94
10-99
Check my frequency on this channel
Give me a long count
Mission completed, all units secure
10-200 Police needed at
29
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Page 30
Frequency Ranges
25 WX NW ST Specifications
The COBRA 25 WX 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
Weather
CB
Freq.
CB
Freq.
Weather Freq.
Channel In MHz Channel In MHz Channel In MHz.
1
2
3
4
5
26.965
26.975
26.985
27.005
27.015
21
22
23
24
25
6
7
8
9
10
27.025
27.035
27.055
27.065
27.075
26
27
28
29
30
1
2
3
4
5
6
27.265 7
27.275
27.285
27.295
27.305
11
12
13
14
15
27.085
27.105
27.115
27.125
27.135
31
32
33
34
35
27.315
27.325
27.335
27.345
27.355
16
17
18
19
20
27.155
27.165
27.175
27.185
27.205
36
37
38
39
40
27.365
27.375
27.385
27.395
27.405
30
27.215
27.225
27.255
27.235
27.245
162.400
162.425
162.450
162.475
162.500
162.525
162.550
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 . . . . . . . . . . . . . . . . . . 13.8VDC 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 6-3/8”W X 2-13/64” H
WEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . .4 LBS.
ANTENNA CONNECTOR . . . . . . . . . . . .UHF; SO-239
METER . . . . . . . . . . . . . . . . . . . . . . . . . . .ILLUMINATED;INDICATES RELATIVE
POWER OUTPUT AND RECEIVED
SIGNAL STRENGTH
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 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
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;SEPAR ATE JACK PROVIDED
Weather
SENSITIVITY . . . . . . . . . . . . . . . . . . . . . . .LESS THAN 1 uV FOR 12 dB SINAD
IF FREQUENCY . . . . . . . . . . . . . . . . . . . .DUAL CONVERSION
1st: - 10.690 MHz
2nd: - 455 KHz
AUDIO OUTPUT . . . . . . . . . . . . . . . . . . .MAXIMUM 500 mW AT 10% DISTORTION
FREQUENCY RESPONSE . . . . . . . . . . . .300 - 3000 HZ AT -6dB
(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)
31
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Page 32
Limited Two Year Warranty
Optional Accessories
COBRA ELECTRONICS CORPORATION warrants that its
COBRA CB Radios, and the component parts thereof, will
be free of defects in wor kmanship 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 fac tory 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 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 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.
Cobra Electronics
Corporation
Replacement DC Power Cord
For in vehicle use
426-002-N-001
$7.50
Replacement Mounting
Bracket
For in vehicle use
251-199-9-001
$4.50
Replacement 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
28” Full Range Center Load,
Magnetic Mount Antenna
For in vehicle use
AT 35
$19.95
25”Glass Mount Antenna
For in vehicle use
AT 55
$27.95
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-400
$27.95
Replacement Dynamic
Microphone
For in vehicle use
CA 73
$12.95
6500 West Cortland Street
Chicago, Illinois 60707
All implied warranties, including warranties of
merchantability and fitness for a particular pur pose
are limited in duration to the length of this war ranty.
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.
32
33
25 WX NW ST Manual 3.3
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Page 34
Accessory Order Form
Optional Accessories
Item #
Description
Cost Ea.
426-002-N-001
251-199-9-001
634-081-9-001
741-080-9-001
AT 35
Replacement DC Power Cord
Replacement Mounting Bracket
Replacement Thumb Screws
Replacement Microphone Bracket
28” Full Range Center Load,
Magnetic Mount Antenna
25” Glass Mount Antenna
39”Full Range Base Load,
Magnetic Mount Antenna
44”Full Range, Center Load,
Dual Band CB/WX Antenna
Replacement Dynamic Microphone
Power Microphone
Noise Canceling/Power Microphone
Echo/Noise Canceling Microphone
Dynamic External Speaker
Noise Canceling External Speaker
Dynamic Noise Canceling
With Talk Back External Speaker
$7.50
$4.50
$0.60
$0.45
AT 55
AT 70
Power Microphone
For in vehicle use
CA 75
$21.95
Noise Canceling/Power
Microphone
For in vehicle use
CA 77
$24.95
Echo/Noise Canceling
Microphone
For in vehicle use
CA 79
$59.95
ATW 400
Shipping & Handling
Dynamic External Speaker
For in vehicle use
CS 100
$14.95
Noise Canceling External
Speaker
For in vehicle use
CS 300
$19.95
Dynamic Noise Canceling
With Talk Back External
Speaker
For in vehicle use
CS 500
$24.95
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 ne xt page, and mail/fax directly
to Cobra.
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.
CA 73
CA 75
CA 77
CA79
CS 100
CS 300
CS 500
Qty. Amount
$19.95
$27.95
$24.95
$27.95
$12.95
$21.95
$24.95
$59.95
$14.95
$19.95
$24.95
Prices subject to change without notice. Subtotal
(Tax if applicable)
Shipping/handling
Total
Tax Table
Illinois residents add 7%
Michigan residents add 4 %
Cook Co.residents add .75% (7.75% total) Ohio residents add 6%
Chicago residents add 1% (8.75% total) Wisconsin residents add 5%
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
8:00 am - 8:00 pm,M-F, CST.
Make check or money order (no stamps)
payable to:
Cobra Accessories Dept.
6500 West Cortland St. Chicago, 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.
34
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25 WX NW ST Manual 3.3
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Page 36
Notes
Notes
Notes
Notes
36
25 WX NW ST Manual 3.3
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Page 38
25 WX NW ST
Cobra Electronics Corporation
6500 West Cortland Street
Chicago, IL60707
If You Think You Need Service
For technical assistance,please call our Automated Help Desk which can assist
you by answering the most frequently asked questions about Cobra products.
Operating Instructions
for your Cobra 25 WX NW ST
CB Radio
(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 follo wing in order to have the product serviced and returned.
1. For Warranty Repair include some form of pr oof-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 w ay of a traceable car rier 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 war ranty, 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.
Cobra Electronics Corp.© 1999
Printed in China
Part No. 480-291-P-001
“Ingenious Products for Easier Communication.”
25 WX NW ST Manual 3.3
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Page 40
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.)
2
FCC Regulations
1
FCC regulations permit only “transmissions”
(one party to another) rather than “broadcasts”
(to a wide audience). Thus, advertising is not
allowed on CB Channels because that is “broadcasting.”
FCC Warnings
All transmitter adjustments other than those
supplied by the manufacturer as front panel
operating controls, must be made by, or under
the supervision of, the holder of an FCC-issued
General Radio-Telephone Operator’s License.
3
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.
4
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 25 WX NW ST
1.
2.
3.
4.
5.
5
A1
CB transceiver
Microphone
Transceiver bracket
Microphone bracket
Operating Manual
6. DC power cord
7. FCC rules
1. (not pictured)
25 WX NW ST Manual 3.3
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Page 41
Controls and Indicators
Our Thanks to You
Thank you for purchasing the Cobra 25 WX NW ST
CB Radio. Properly used, this Cobra product will
give you many years of reliable service.
Cobra Customer Service
1. 4-Pin Microphone Connector
2. Power On/Off/Volume
16
3. Squelch
SoundTracker TM
4. DIM/Dynamike
“Cuts noise coming in...strengthens signals
going out.”
5. Weather Channel Selector
6. Channel Selector
This Patent pending technology dramatically
improves transmission and reception of CB
signals.
7. LED Channel Display
8.
Sound Tracker™ LED
9. RX (Receive)/ TX (Transmit)
/WX Weather LED Indicator
10. Sound Tracker™ On/Off
11. Channel 19/Channel 9/
Normal Switch
12. CB/Weather Switch
14 13 12 11 9
The revolutionary SoundTrackerTM System reconfigures the transmission signal which allows it to
be transferred more efficiently through cluttered
airwaves.
8
7
15
13. NB/Off Switch
10
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
At the same time, it significantly reduces the
amount of static on all incoming CB signals.
14. CB/ANL PA Switch
The end result is a cleaner, clearer sounding
reception of signals and a more powerful
transmission which dramatically improves
CB communications.
15. Signal Strength Meter
16. Microphone
1
Back Side
17. Public Address Speaker Jack
2
4
5
6
3
18. External Speaker Jack
17
18
19. Antenna Connector
20. Power Jack
19
A2
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.
20
A3