Cobra Electronics 25 NW User Manual

How to Use Your

Contents
Features

The CB Story..................................................................................A1

Controls & Indicators................................................................A2

Our Thanks to You ......................................................................A3

Installation

Antennas

Ignition Noise Interference ...................................................7

Operating Your 25 NW

How Your CB Can Serve You...................................................25

Frequency Ranges......................................................................29

25 NW Specifications................................................................30

Warranty Information..............................................................31

Optional Accessories.................................................................32

Order Form ....................................................................................34

If You Think You Need Service .............................Back Cover

...........................................................................................1

FCC Regulations
FCC Warnings
Included Accessories

Customer Support

Location.......................................................................................2

Mounting and Connection...................................................2

CB Antenna ................................................................................6

Marine Installation...................................................................6

Turning On Your CB.................................................................8

Setting Channel Selector.......................................................9

To Receive...................................................................................10

Selecting a Channel ................................................................10

S-Meter.........................................................................................11

Dimmer Control........................................................................12

RF Gain Control.........................................................................12

Setting Squelch.........................................................................13

To Transmit .................................................................................15

Setting Dynamike ....................................................................16

Transmit.......................................................................................17

RF Meter ......................................................................................17

External Speaker.......................................................................18

PA (Public Address)..................................................................19

ANL (Automatic Noise Limiter) Switch.............................21

NB, OFF (Noise Blanker) Switch ...........................................21

Temporary Mobile Set-Up.....................................................22

Home And Office Set-Up.......................................................23

A Few Rules You Should Know............................................25

Channel 9 Emergency Messages .......................................25

CB 10 Codes...............................................................................27

Cobra 25 NW

Features of This Product

• 40 CB Radio Channels

• 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

• Switchable Automatic
Noise Limiter

• Adjustable Dynamike Boost

• Tactile Controls

• Illuminated Front Panel

• Dimmer 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

PERSONNEL

!

!

1

Installation

CB Transceiver

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 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

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.

2

2

Drill the holes and secure the bracket.

3

ANT

PA.SP. EXT.SP.

+POWER —

FCC ID:BBO3K229LTD

COBRA

MADE IN CHINA

SERIAL NO.:806135776
PRECISION ENGINEERED PRODUCT OF
COBRA ELECTRONICS CORP. CHICAGO, ILL.60707

Connect the antenna cable plug to the recep­tacle marked “ANT” on the back of the unit.

Installation

continued

3

Installation

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.

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.

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.

4

6

ANT

PA.SP. EXT.SP.

+POWER –

JUNE 98

FCC ID:BBO3K229LTD

COBRA

MADE IN CHINA

SIG 1 3 5 7 9 +30dB

RF

MIN MAX MIN MAXOFF

SHIELD

AUDIO

RX

TX

1

2

3

4

Plug power cable into back of unit marked
“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.

Installation

Microphone
Connector

8

Attach the 4-pin microphone cable to recepta­cle on front of unit and Install unit in bracket
securely.

5

ANT

PA.SP. EXT.SP.

+POWER—

FCC ID:BBO3K229LTD

COBRA

MADE IN CHINA

SERIAL NO.:806135776
PRECISION ENGINEERED PRODUCT OF
COBRA ELECTRONICS CORP. CHICAGO, ILL.60707

Antennas

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 a 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

773.889.3087 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.

6

Ignition Noise Interference

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 NW 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.

7

Operation

SIG 1 3 5 7 9 +30dB

RF

MIN MAX

MIN MAX

OFF

25 NW LTD CLASSIC

LTD CLASSIC

Turning On

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.

2

Rotate the On/Off Volume knob clockwise to
a normal listening level.

8

Operation

MIN MAX

MIN MAX

LTD CLASSIC

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

Setting Channel
Selector

9

Operation

25 NW

LTD CLASSIC

LTD CLASSIC

To Receive

Selecting A
Channel

Note

Switch to 9 (Emergency) or 19
(Information) for instant access
to these channels.

To Receive

1

Rotate the On/Off Volume knob clockwise
the green RX/TX LED will be illiuminated.

Selecting A Channel

1

Switch to NOR to select desired channel.

10

Operation

S-Meter

Swings proportionately to strength of incoming
signal when receiving.

S-Meter

11

Operation

SIG 1 3 5 7 9 +30dB

RF

MIN MAX

MIN MAX

OFF

25 NW

LTD CLASSIC

SQL

MIN MAX

MIN MAX

LTD CLASSIC

Dimmer Control

Note

The Dim controls the brightness
of the front panel, signal strength
meter and channel display.

RF Gain Control

Note

The RF Gain is used to optimize
reception in weak signal areas.

Dimmer Control

1

Rotate the DIM knob clockwise for
maximum brightness; counter-clockwise
for minimum.

RF Gain Control

The RF Gain is used to optimize reception in
strong or 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.

12

Operation

NOISE

WEAK SIGNALS

MEDIUM SIGNALS

STRONG SIGNALS

G AT E CL OS E D

NOISE

WEAK SIGNALS

MEDIUM SIGNALS

STRONG SIGNALS

NOISE

WEAK SIGNALS

MEDIUM SIGNALS

STRONG SIGNALS

G AT E 

O PE N

NOISE

WEAK SIGNALS

MEDIUM SIGNALS

STRONG SIGNALS

SIG 1 3 5 7 9 +30dB

RF

MIN MAX

MIN MAX

OFF

CLASSIC

SIG 1 3 5 7 9 +30dB

RF

MIN MAX

MIN MAX

OFF

LTD CLASSIC

Setting Squelch

Squelch is the “control gate”for incoming signals.

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.

Setting Squelch

Gate closed

Gate open

13

Operation

NOISE

WEAK SIGNALS

MEDIUM SIGNALS

STRONG SIGNALS

G AT E

SIG 1 3 5 7 9 +30dB

RF

MIN MAX

MIN MAX

OFF

LTD CLASSIC

Gate set to Desired
Squelch Setting (DSS)

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.

14

Operation

MIN MAX

MIN MAX

LTD CLASSIC

To Transmit

1

Select desired channel.

To 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.

15

Operation

SIG 1 3 5 7 9 +30dB

RF

MIN MAX

MIN MAX

OFF

LTD CLASSIC

Setting
Dynamike

Setting Dynamike

This controls the microphone sensitivity
(outgoing audio level).

1

Initially,set fully clockwise so that maxi­mum voice volume is available.Dynamike
may have to be reduced in some conditions.

16

Operation

PUSH &
HOLD

Transmit

1

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.

RF Meter

This meter swings proportionately to the RF
output (outgoing signal) while transmitting.

Transmit

RF Meter

17

Operation

ANT

PA.SP. EXT.SP.

+POWER –

FCC ID:BBO3K229LTD

COBRA

MADE IN CHINA

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 15 watts.See
accessories page 33.

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.

18

Operation

ANT

PA.SP. EXT.SP.

+POWER –

FCC ID:BBO3K229LTD

COBRA

MADE IN CHINA

SIG 1 3 5 7 9 +30dB

RF

MIN MAX

MIN MAX

OFF

25 NW CLASSIC

LTD

PA (Public Address)

1

Connect an external PA speaker to the PA jack
on the rear panel.

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.

2

Set CB PA switch to PA position.

19

Operation

SIG 1 3 5 7 9 +30dB

RF

MIN MAX

MIN MAX

OFF

LTD CLASSIC

PUSH &
HOLD

3

Push and hold microphone button and speak
in a normal voice.Your voice will sound on the
PA speaker.

4

20

Adjust PA speaker volume with the

Dynamike control.

Operation

SIG 1 3 5 7 9 +30dB

RF

MIN MAX

MIN MAX

OFF

25 NW LTD CLASSIC

SIG 1 3 5 7 9 +30dB

RF

VOL SQL

MIN MAX

MIN MAX

OFF

LTD

CLASSIC

ANL (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.

NB, OFF (Noise Blanker) Switch

ANL (Automatic
Noise Limiter)
Switch

NB, OFF
(Noise Blanker)
Switch

Note

The RF noise blanker is very
effective in reducing repetitive
noises such as ignition interfer­ence.

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.

21

Temporary Mobile Set-Up

ANT

PA.SP. EXT.SP.

+POWER–

DATE OF 
MFG :JUNE 98

FCC ID:BBO3K229LTD

COBRA

MADE IN CHINA

SERIAL NO.:806135776
PRECISION ENGINEERED PRODUCT OF
COBRA ELECTRONICS CORP. CHICAGO, ILL.60707

Temporary
Mobile Set-Up

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.

22

Home And Office 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.

1

Simply connect the red (+) and black (-)
leads of the transceiver to the corresponding
terminals of the power pack.

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.

23

Home And Office Set-Up

ANT

PA.SP. EXT.SP.

+POWER –

FCC ID:BBO3K229LTD

COBRA

MADE IN CHINA

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.

24

How Your CB Can Serve You

• Warn of traffic problems

• Provide weather and road data

• Provide help in event of an emergency

• Provide direct contact with home or office

• Assist police by reporting erratic drivers

• Get “local information” to find destination

• Communicate with family and friends

• Suggest spots to eat and sleep

• Keep you alert while traveling

A Few Rules You Should Know

A. Conversations cannot last more than 5 minutes

with another station. A one minute break is
required to let others use the channel.

B. You cannot blast others off the air by use of

illegally amplified transmitters or illegally

high antennas.
C. You cannot use CB to promote illegal activities.
D. Profanity is not allowed.
E. You may not transmit music with a CB.
F. Selling of merchandise and/or services is

prohibited.

A Few Rules
You Should
Know

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 CLIP repeatedly so any monitor can assist.

Channel 9
Emergency
Messages

Note

If no response on channel 9,
try channels 19 or 14.

25

How Your CB Can Serve You

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.”

26

How Your CB Can Serve You

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 Meaning

10-1 Receiving poorly
10-2 Receiving well
10-3 Stop transmitting
10-4 OK, message received
10-5 Relay message
10-6 Busy,stand by
10-7 Out of service, leaving
10-8 In service, subject to call
10-9 Repeat message
10-10 Transmission completed standing by
10-11 Talking too rapidly
10-12 Visitors present

10-13 Advise weather/roads
10-16 Make pick up at
10-17 Urgent business
10-18 Anything for us?
10-19 Return to base
10-20 My location is
10-21 Call by phone
10-22 Report in person to
10-23 Stand by
10-24 Completed last assignment
10-25 Can you contact
10-26 Disregard last info
10-27 Moving to channel
10-28 Identify your station

CB 10-Codes

27

How Your CB Can Serve You

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

28

Frequency Ranges

The COBRA 25 NW 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

29

25 NW Specifications

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 6-3/8” W X 2-13/64” 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,T YPICAL

IF FREQUENCIES . . . . . . . . . . . . . . . . . . .DOUBLE CONVERSION: 1ST:10.695 MHZ

AUTOMATIC GAIN CONTROL (AGC) .LESS THAN 10 dB CHANGE IN AUDIO

RF GAIN RANGE . . . . . . . . . . . . . . . . . . . .40 dB

NOISE BLANKER . . . . . . . . . . . . . . . . . . . .RF T YPE

SQUELCH . . . . . . . . . . . . . . . . . . . . . . . . . .ADJUSTABLE;THRESHOLD LESS THAN 1µV

AUDIO OUTPUT POWER . . . . . . . . . . . .4 WAT TS

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

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 AND RECEIVED
SIGNAL STRENGTH

2ND: 455 KHZ

OUTPUT FOR INPUTS FROM 10 TO 50,000
MICROVOLTS

WHEN CONNECTED

RECEIVER; SEPARATE JACK PROVIDED

30

Limited Two Year Warranty





QUALITYQUALITY SEALSEALQUALITY SEAL



2

Y

e

a

r

W

a

r

r

a

n

t

y

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,
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.

This warranty gives you specific legal rights,and you may
also have other rights which vary from state to state.

Exclusions: This limited warranty does not apply; 1) to any
product damaged by accident; 2) in the event of misuse
or abuse of the product or as a result of unauthorized
alterations or repairs; 3) if the serial number has been
altered,defaced or removed; 4) if the owner of the product
resides outside the U.S.A.

All implied warranties,including warranties of
merchantability and fitness for a particular purpose
are limited in duration to the length of this warranty.

COBRA shall not be liable for any incidental,
consequential or other damages; including, without
limitation, damages resulting from loss of use or cost
of installation.

Some states do not allow limitations on how long
an implied warranty lasts and/or do not allow the
exclusion or limitation of incidental or consequential
damages, so the above limitations may not apply
to you.

Cobra Electronics
Corporation

6500 West Cortland Street
Chicago,Illinois 60707

31

Optional Accessories

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

4 Pin Premium Noise­Cancelling Microphone

HG M84 $74.95

Replacement Mounting
Bracket

For in vehicle use
251-199-9-001 $4.50

21” Base Loaded Magnet
Mount Antenna

HG A1000 $28.95

4 Pin Premium Noise­Cancelling Microphone

Wood Grain
HG M84W $74.95

Replacement Thumb Screws

For in vehicle use
634-081-9-001 $0.60

38” Base Loaded Magnet
Mount Antenna

HG A1500 $46.95

5 Pin Premium Noise­Cancelling Microphone

HG M85 $74.95

32

Optional Accessories

4 Pin Replacement Dynamic
Microphone

HG M73 $19.95

Dynamic External Speaker

HG S100 $21.95

54” Base Loaded Magnet
Mount Antenna

HG A2000 $99.95

Power Microphone

HG M75 $25.95

Noise Canceling External
Speaker

HG S300 $28.95

4 Pin Noise Canceling
Microphone

HG M77 $30.95

Noise Canceling With Talk
Back External Speaker

HG S500 $32.95

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.-6 p.m. M-F CST.

Order by mail or fax

Please fill out order form on next page, and mail/fax directly
to Cobra.

33

Accessory Order Form

Item # Description Cost Ea. Qty. Amount

426-002-N-001 Replacement DC Power Cord $7.50
251-199-9-001 Replacement Mounting Bracket $4.50
634-081-9-001 Replacement Thumb Screws $0.60
741-080-9-001 Replacement Microphone Bracket $0.45
HG A1000 21”Base Loaded,

HG A1500 38”Base Loaded

HG A2000 54”Base Loaded

HG M84 4 Pin Premium Noise-Cancelling

HG M84W 4 Pin Premium Noise-Cancelling

HG M85 5 Pin Premium Noise-Cancelling

HG M73 4 Pin Replacement Dynamic

HG M77 4 Pin Noise-Cancelling

HG M75 Power Microphone $25.95
HG S100 Dynamic External Speaker $21.95

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.

HG S300 Noise-Cancelling External

HG S500 Noise-Cancelling with Talk Back

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

Name
Address (No P.O.Box)

City State
Zip
Telephone ( )
Credit Card No. Exp.Date
Customer Signature
Circle One: Visa MasterCard Discover

Allow 2 to 3 weeks for delivery.

Magnetic Mount Antenna $28.95

Magnetic Mount Antenna $46.95

Magnetic Mount Antenna $99.95

Microphone $74.95

Microphone (Wood Grain) $74.95

Microphone $74.95

Microphone $19.95

Microphone $30.95

Speaker $28.95

External Speaker $32.95

Subtotal

Michigan residents add 4 %
Ohio residents add 6%
Wisconsin residents add 5%

8:00 am - 6:00 pm, M-F, CST.
Make check or money order (no stamps)
payable to:
Cobra Accessories Dept.
6500 West Cortland St.Chicago, IL 60707

(Tax if applicable)
Shipping/handling

Total

34

The Cobra line of quality products
also includes:

™

• MicroTalk

Radios

• Radar Detectors

• SafetyAlert

®

Traffic Warning Systems

™

• HighGear

• HighGear

CB Accessories

™

Power Inverters

Nothing comes close to a Cobra

™

Cobra Electronics Corporation
6500 West Cortland Street
Chicago, IL 60707

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.

[phone]

A Consumer Service Representative can be reached through this same number

Technical assistance is also available on-line in the Frequently Asked Questions (FAQ) section at

www.cobraelectronics.com or by e-mail to [e-mail]

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.

24 hours a day,7 days a week.

8:00 am - 6:00

pm, Monday through Friday, CST.

Cobra Electronics Corp.© 2001
Printed in China

Part No. 25 NW MAN

Operating Instructions

25 NW

LTD

CLASSIC

RF GAIN DYNA

DIM

for your Cobra 25 NW

CB Radio

25 NW LTD CLASSIC

LTD CLASSIC

“Ingenious Products for Easier Communication.”

25 NW 

CB Radio

“Ingenious Products for Easier Communication.”

Operating Instructions
for your Cobr

25 NW

RF GAIN DYNA

DIM

SIG1 3 5 79 +30dB

RF

MIN MAX MIN MAXOFF

LTD CLASSIC

The CB Story

CB Transceiver

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.)

3

4

5

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.”

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.

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 25 NW

1. CB transceiver 6. DC power cord

2. Microphone 7. FCC rules

3. Transceiver bracket 1. (not pictured)

4. Microphone bracket

5. Operating Manual

A1

ANT

PA.SP. EXT.SP.

+POWER–

DATE OF 
MFG :JUNE 98

FCC ID:BBO3K229LTD

COBRA

MADE IN CHINA

SERIAL NO.:806135776
PRECISION ENGINEERED PRODUCT OF
COBRA ELECTRONICS CORP. CHICAGO, ILL.60707

Controls and Indicators

SIG1 3 5 7 9 +30dB

RF

MIN MAX MIN MAXOFF

LTD CLASSIC

1. 4-Pin Microphone Connector

2. Power On/Off/Volume

3. Squelch

4. RF Gain/DynaMike

5. Dim

6. Channel Selector

7. LED Channel Display

8. RX (Receive)/ TX (Transmit)

LED Indicator

9. Channel 19/Channel 9/

Normal Switch

10. CB/PA Switch

11. NB/Off Switch

12. ANL/Off Switch

13. Signal Strength Meter

14. Microphone

Back Side

15. Public Address Speaker Jack

16. External Speaker Jack

17. Antenna Connector

18. Power Jack

13

1

9

10

11

12

2 4 5

3

14

8

7

6

15 16

A2

17 18

Our Thanks to You

Thank you for purchasing the Cobra 25 NW CB
Radio. Properly used,this Cobra product will give
you many years of reliable service.

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 - 6:00 pm CST at:

773.889.3087

Automated Technical Assistance
available 24 hours a day,seven
days a week. E-mail questions
to: productinfo@cobraelec­tronics.com

Cobra on the World Wide Web:
Frequently Asked Questions
(FAQ) can be found on-line at:
www.cobraelectronics.com

A3