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Cobra 19 DX IV Owner's Manual

Made by: Cobra
Type: Owner's Manual
Category: Radio
Pages: 11
Size: 1.24 MB

 

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A1 English

Our Thanks, The CB Story,
and Customer Assistance

Intro

Operation

Customer
Assistance

Warranty

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Introduction

Thank you for purchasing the Cobra 19 DX IV CB Radio
Transceiver. Properly used, this Cobra product will give 
you many years of reliable service.

The Citizens Band 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.)

Customer Assistance

Should you encounter any problems with this product, or not understand 

its many features, please refer to this owner’s manual. If you require further 

assistance after reading this manual, Cobra Electronics offers the following 

customer assistance services:

For Assistance in the U.S.A.

Automated Help Desk English only.

24 hours a day, 7 days a week 773-889-3087 (phone).

Customer Assistance Operators English and Spanish.

8:00 a.m. to 6:00 p.m. CT Mon. through Fri. (except holidays) 773-889-3087 (phone).

Questions English and Spanish.

Faxes can be received at 773-622-2269 (fax).

Technical Assistance English only.

www.cobra.com (on-line: Frequently Asked Questions).

English and Spanish. productinfo@cobra.com (e-mail).

For Assistance Outside the U.S.A.

Contact Your Local Dealer

Intro

Operation

Customer
Assistance

Warranty

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Customer Assistance

© 2005 Cobra

®

Electronics Corporation

6500 West Cortland Street

Chicago, Illinois 60707 USA

www.cobra.com

MOBILE RADIO

19 DX IV

Printed in China

Part No. 480-170-P

Version A

Owner’s Manual

Nothing comes close to a Cobra

®

English

Nothing comes close to a Cobra

®

English

For more information or to 

order any of our products, 

please visit our website:

www.cobra.com

CB Radios

microTALK

®

Radios

Radar/Laser Detectors

Safety Alert

®

Traffic Warning Systems

Handheld GPS Receivers

Mobile GPS Navigation Systems

HighGear

®

Accessories

CobraMarine

VHF Radios

Power Inverters

Accessories

The Cobra line of quality products includes:

 


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Intro

Operation

Customer
Assistance

Warranty

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Customer Service

17

Nothing comes close to a Cobra

®

Order Form and
Optional Accessories 

Intro

Operation

Customer
Assistance

Warranty

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Introduction

A3

Nothing comes close to a Cobra

®

Product Features and 
FCC Regulations

A2 English

Product Features

Intro

Operation

Customer
Assistance

Warranty

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Introduction

Channel 9/
NOR/Channel 19 
Button

CB/PA
Button

On-Off/

Volume Knob

Squelch/

RF Gain Knob

Channel 

Selector Knob

Microphone

Connector

TX Indicator
Icon

S/RF 
Power Meter

LCD Channel
Display

Antenna

Connector

External
Speaker Jack

Public 

Address Jack

Power Connection

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.

Ordering from U.S.A.

Call 773-889-3087 for pricing or visit www.cobra.com.

For credit card orders, complete and return this order 

form to fax number 773-622-2269. Or call 773-889-3087

(Press 1 from the main menu) 8:00 a.m. to 6:00 p.m. CT, 

Monday through Friday.

Make check or money order payable to:  

Cobra Electronics, Attn: Accessories Dept.

6500 West Cortland Street, Chicago, IL 60707 USA

To order online, please visit our website: www.cobra.com

The Cobra 
line of quality
products includes:

CB Radios

microTALK

®

Radios

Radar/Laser Detectors 

Safety Alert

®

Traffic 

Warning Systems

Handheld GPS Receivers

Mobile GPS 
Navigation Systems

HighGear

®

Accessories  

CobraMarine™ VHF
Radios  

Power Inverters

Accessories

Order Form

Name

Address (No P.O. Boxes)

City

State/Province

Zip

Country

Telephone

Credit Card Number

Type:

Visa   

MasterCard   

Discover

Exp. Date

Customer Signature

Item #

U.S. Cost Each

Qty

Amount

U.S. Subtotal

(Tax if Applicable)

Shipping/Handling

Total

Amount Shipping/Handling*

$10.00 or less . . . . . $3.00

$10.01-$25.00 . . . . . $5.50

$25.01-$50.00 . . . . . $7.50

$50.01-$90.00 . . . . $10.50

$90.01-$130.00 . . . $13.50

$130.01-$200.00 . . $16.50

$200.01 plus . . . . . 10% of

purchase

*For AK, HI and PR add

additional $26.95 for FedEx
Next Day or $10.95 for
FedEx 2nd Day. Excludes
weekend and holiday
shipments.

Please allow two to three
weeks for delivery in the
U.S. Prices subject to
change without notice.

Tax Table

California . . . 7.25%
Illinois . . . . . 8.75%
Indiana. . . . . 6%

Michigan . . . 6%
Ohio. . . . . . . 6%
Wisconsin . . 5%

Product Features

Product Features

Features

• 40 CB Radio 

Channels

• Instant 

Channels 9/19

NOR

• PA System

• Compact 

Size

• Dynamic 

Microphone

• Nine Foot 

Microphone 

Cord

• Front Panel 

Microphone 

Connector

• RF Gain

FCC Regulations

FCC Regulations

FCC regulations permit only “transmission” (one-party to another) rather than 
“broadcast” (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.

Intro

Operation

Customer
Assistance

Warranty

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

RX

TX

Audio

Shield

Microphone Connector Detail

Talk 
Button

 


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Intro

Operation

Customer
Assistance

Warranty

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Introduction

1

Nothing comes close to a Cobra

®

Contents

Introduction

Our Thanks to You  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1
The Citizens Band Story  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1
Customer Assistance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1
Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2
FCC Regulations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A3
Warnings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Included in this Package  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Installation and Start-Up

Mounting and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Operating Your Mobile Radio

Operation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Antenna Connector  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
External Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Public Address (PA)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Power  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Turning on Your Mobile Radio  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CB Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Microphone Connector  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Squelch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
RF Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Selecting a Channel  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Channel 9/NOR/Channel 19  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
CB/PA  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
S/RF Power Meter  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
TX Indicator LED  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ignition Noise Interference  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Temporary Mobile Operation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Operating Procedure to Receive  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operating Procedure to Transmit  . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Maintenance/Adjustment  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Frequency Ranges  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Specifications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Warranty

Limited One-Year Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Customer Assistance

Product Service  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Order Form and Optional Accessories  . . . . . . . . . . . . . . . . . . . . . . . . 17

Intro

Operation

Customer
Assistance

Warranty

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Intro

Operation

Customer
Assistance

Warranty

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Intro

Operation

Customer
Assistance

Warranty

Notice

ain Icons

econdary Icons

Caution

Warning

Installation

Customer
Assistance

Operation

Customer
Assistance

Warranty

N

Installation

Customer
Assistance

Customer
Assistance

Warranty

N

Customer
Assistance

 


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2

English

Included in this Package

You should find all of the following items in this package:

Intro

Operation

Customer
Assistance

Warranty

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Introduction

3

Nothing comes close to a Cobra

®

Mounting and Connections

Intro

Operation

Customer
Assistance

Warranty

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Installation and Start-Up

Warnings and 
Included in this Package

Intro

Operation

Customer
Assistance

Warranty

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Introduction

Mounting and Connections

Select a location for the transceiver and microphone bracket that is convenient for

operation. In automobiles, the transceiver is usually mounted to the underneath of

the dash panel, with the microphone bracket beside it.

A universal mounting bracket is supplied along with self

tapping screws and star washers. The transceiver is held

in the universal mounting bracket by two thumb screws,

permitting adjustment at the most convenient angle.

To mount and connect your transceiver:

1. Hold the radio with mounting bracket in the exact

location desired. Remove the mounting bracket 

and use it as a template to mark the location for 

the mounting screws.

2. Drill necessary holes and secure mounting 

bracket in location. 

3. Connect the antenna cable plug to the receptacle

marked “ANT” on the back of the unit.

4. 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 automobile. This is usually the chassis. 

Any convenient location with good electrical 

contact (remove paint) may be used.

NOTE

Before installing the CB radio, visually check the

vehicle battery connections to determine which

battery terminal, positive or negative (positive is

the larger of the two) is grounded to the engine

block (or chassis).

6. Mount the microphone bracket on right side 

of the transceiver or near it using two screws

supplied. When mounting in an automobile, 

place the bracket under the dash so the 

microphone is readily accessible.

7. Attach the four pin microphone cable to receptacle 

on front of unit and install unit in bracket securely.

Intro

Operation

Customer
Assistance

Warranty

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

CB Transceiver

Microphone

Transceiver Bracket

Microphone Bracket

Operating Manual

CB Tranceiver

Transceiver Bracket

Antenna Connector

Fuse Connection

Intro

Operation

Customer 
Assistance

Warr

anty

Notice

Main Icons

Secondary Icons

Caution

War

ning

Installation

Customer 
Assistance

Microphone Connector

Intro

Operation

Customer 
Assistance

Warr

anty

Notice

Main Icons

Secondary Icons

Caution

War

ning

Installation

Customer 
Assistance

REPLACEMENT WARNING

Replacement or substitution of certain parts with replacements other than those
recommended by Cobra may be a violation of the technical regulations of Part 95 
of the FCC rules, or of Type Acceptance requirements of Part 2 of those rules.

When making adjustments, be sure to re-read applicable portions of this instruction manual
to make certain you are following correct procedure and that the radio was properly installed.

Operation

Customer
Assistance

Warranty

Notice

Caution

Warning

Installation

Customer
Assistance

A FEW RULES THAT SHOULD BE OBEYED

1. You are not allowed to carry on a conversation with another station for more than five minutes

at a time without taking a one-minute break to give others a chance to use the channel.

2. You are not allowed to blast others off the air by overpowering them with illegally

amplified transmitter power or illegally high antennas.

3. You are not allowed to use CB to promote illegal activities.

4. You are not allowed to use profanity.

5. You may not play music in your CB.

6. You may not use your CB to sell merchandise or professional service.

Operation

Customer
Assistance

Warranty

Notice

Caution

Warning

Installation

Customer
Assistance

CHANNEL 9 EMERGENCY MESSAGES

Use Channel 9 for emergency messages only. The FCC gives the following examples 
of permitted and prohibited types of communications for use on Channel 9. These are
guidelines and are not intended to be all-inclusive.

Permitted: “A tornado sighted six miles of town.”

Not Permitted: “This is observation post number 10. No tornado sighted.”

Operation

Customer
Assistance

Warranty

Notice

Caution

Warning

Installation

Customer
Assistance

Warnings

 


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Operation

Turning on Your Mobile Radio

Turn the On-Off/Volume knob clockwise to turn 

the power on and set the desired listening volume.

CB Antenna

Only a properly matched Antenna system will 

allow maximum power output. In mobile installations

(cars, trucks, boats, etc.), an Antenna system that is

non-directional should be used. When installed in a

boat, the transceiver will not operate at maximum

efficiency without a ground plate unless the vessel 

has a steel hull. Before installing the transceiver 

in a boat, consult your dealer for information 

regarding an adequate grounding system.

NOTE

Cobra loaded-type antenna models HGA 1000,

HGA 1500 and HGA 2000 are highly recommended

for most installations. Consult your Cobra dealer

for further details (or see order form on page 17).

Three-way combination antennas are available

which allow operation of all three bands (AM-FM

and CB), using a single antenna. However, use 

of this type of antenna usually results in less 

than normal transmit and receive range when 

compared to a standard-type “Single Band”

antenna designed for CB only.

Microphone Connector

Allows for convenient removal of the Microphone plug

when storage is required. The Microphone MUST be

connected to the unit at all times, when in use, for 

proper operation.

Intro

Operation

Customer
Assistance

Warranty

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Operating Your Mobile Radio

5

Nothing comes close to a Cobra

®

4

English

Operation

Operation

Antenna Connector

This female Connector on the rear panel permits

connection of the transmission line cable male 

connector to the transceiver.

External Speaker

The external speaker jack on the rear panel is used 

for an External Speaker. 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 15 watts.

Public Address (PA)

An external PA speaker may be connected 

to the PA speaker jack when used as a public 

address system. The speaker should be directed 

away from the microphone to prevent acoustic 

feed-back. Physical separation or isolation of 

the microphone and speaker must be employed 

when operating the PA at high output levels.

Power

These wires supply Power to the CB radio. 

This cable is permanently attached to the radio. 

If you wish to remove the radio after installation, 

disconnect at fuse holder and ground connector.

Intro

Operation

Customer
Assistance

Warranty

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

On-Off/Volume Knob

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Operation

Intro

Operation

Customer
Assistance

Warranty

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Operating Your Mobile Radio

Microphone Connector

Intro

Operation

Customer 
Assistance

Warr

anty

Notice

Main Icons

Secondary Icons

Caution

War

ning

Installation

Customer 
Assistance

Intro

Operation

Customer
Assistance

Warranty

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Antenna Connector

Intro

Operation

Customer 
Assistance

W

Notice

Secondary Icons

Caution

Wa

Installation

Customer 
Assistance

External Speaker Jack

Intro

Operation

Customer 
Assistance

W

Notice

Main Icons

Seconda

ry Icons

Caution

Wa

Installation

Customer 
Assistance

PA Speaker Jack

Intro

Operation

Customer
Assistance

Warranty

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Power Cable

Intro

Operation

Customer
Assistance

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Main Icons

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Caution

Warning

Installation

Customer
Assistance

 


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Operation

Selecting a Channel

Rotate the Channel knob clockwise 

until desired channel is displayed.

Channel 9/NOR/Channel 19

Set CH 9 to obtain instant access 

to the emergency channel. 

Set NOR position to use the channel knob 

to choose any of the 40 channels.

Set CH 19 to obtain instant access to 

the information and calling channel.

CB/PA

In the CB position, the PA function is disabled 

and the unit will transmit and receive on the 

selected channel. The PA function should not 

be used unless a PA speaker is connected. In the 

PA position, the transmit function is disabled and 

the microphone output will go only to the PA speaker.

S/RF Power Meter

Shows relative transmitter RF output power 

and input signal strength when receiving. 

The Liquid Crystal Display (LCD) segments 

increase with signal strength.

TX Indicator

The TX Indicator will light when in the 

transmit mode. “Busy” will appear when 

there is an incoming signal.

7

Nothing comes close to a Cobra

®

6

English

Operation

Squelch

This control is used to cut off or eliminate receiver background noise in the absence

of an incoming signal. Adjust until the receiver noise disappears. This will require the

incoming signal to be slightly stronger than average receiver noise. Further clockwise

rotation will increase the threshold level which a signal must overcome in order to be

heard. Only strong signals will be heard at a maximum clockwise setting.

Squelch is the “control gate” for incoming signals.

To squelch your radio:

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.

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.

RF Gain

This control is used to adjust receiver sensitivity. Maximum sensitivity allows 

weak signals to be received. However, very strong signals (such as from a nearby

transmitter) can cause distortion at that setting. Adjust until the distortion disappears.

Reducing the receiver’s RF Gain eliminates distortion from very strong incoming signals.

To set RF Gain:

1. Full counterclockwise rotation minimizes 

gain for maximum distortion control.

2. To achieve the desired level of distortion control,

turn the RF Gain knob counterclockwise until 

the distortion is eliminated.

3. After moving away from the strong signal, 

turn the RF Gain knob fully clockwise to 

receive all possible signals.

Channel Selector Knob

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Channel 9/NOR/Channel 19 Button

Intro

Operation

Customer 
Assistance

Warr

anty

Notice

Main Icons

Secondary Icons

Caution

War

ning

Installation

Customer 
Assistance

CB/PA Button

Intro

Operation

Customer
Assistance

Warranty

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

S/RF Power Meter

TX Indicator 

Intro

Operation

Customer 
Assistance

Warr

anty

Notice

Main Icons

Secondary Icons

Caution

War

ning

Installation

Customer 
Assistance

Intro

Operation

Customer
Assistance

Warranty

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Operating Your Mobile Radio

Operation

Operation

Intro

Operation

Customer
Assistance

Warranty

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Operating Your Mobile Radio

Adjust Squelch/RF Gain Knob

Intro

Operation

Customer
Assistance

Warranty

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Adjust Squelch/RF Gain Knob

Intro

Operation

Customer
Assistance

Warranty

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Gate Closed

Strong Signals

Medium Signals

Weak Signals

Noise

Gate Open

Strong Signals

Medium Signals

Weak Signals

Noise

Desired Squelch Setting (DSS)

Strong Signals

Medium Signals

Weak Signals

Noise

 


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9

Nothing comes close to a Cobra

®

8

English

Operation

Operating Procedure to Receive

Be sure that power cord, antenna and microphone 

are connected to the proper connectors before

proceeding further. The CB/PA switch should be 

in the CB position.

To receive:

1. Turn the radio on by rotating the 

On-Off/Volume knob clockwise.

2. Rotate the Squelch/RF Gain knob

counterclockwise until incoming 

signal is heard.

3. Select the desired channel.

4. Set the On-Off/Volume knob and the 

Squelch/RF Gain knob to a comfortable 

listening level.

Operating Procedure to Transmit

Be sure the antenna is properly connected to the radio before transmitting.

Prolonged transmitting without an antenna, or with a poorly matched 

antenna, could cause damage to the transmitter.

To transmit:

1. Select the desired channel.

2. The receiver and transmitter are controlled by 

the Press-to-Talk switch on the microphone. 

Press the switch and the transmitter is activated;

release switch to receive. When transmitting 

(on a clear channel), hold the microphone 

two inches from the mouth and speak clearly 

in a normal voice.

Operation

Ignition Noise Interference

Use of a mobile receiver at low signal levels is normally limited by the presence 

of electrical noise. Under most operating conditions, 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 vehicle

engine turned off. The unit requires very little current and therefore will not

significantly discharge the vehicle battery.

Even though this radio has an automatic noise limiter, in some installations 

ignition interference may be high enough to make good communications 

impossible. Consult your authorized Cobra dealer or a two-way radio technician 

for help in locating and correcting the source of severe noise.

Temporary Mobile Operation

For Temporary Mobile Operation, you may want to purchase an additional cigarette

lighter adapter from your Cobra dealer. This adapter and a magnetic mount antenna

allow you to quickly “install” your transceiver for temporary use.

NOTE

Red Wire is connected to positive side 

of socket center tip. Black Wire is connected 

to negative side contacts.

Radio resets to CH 9 when connected to 

cigarette lighter plug.

When using the unit with cigarette adapter,

turn off when not in use to avoid draining 

the battery.

Intro

Operation

Customer
Assistance

Warranty

Notice

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Secondary Icons

Caution

Warning

Installation

Customer
Assistance

EXT

ANT

13.8V DC

PA

Temporary Mobile Operation

Press-to-Talk Switch

On-Off/Volume Knob

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Adjust Squelch/RF Gain Knob

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ning

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Operating Your CB Radio

11

Nothing comes close to a Cobra

®

Frequency Ranges

10 English

Maintenance/Adjustment

CB

Channel Frequency

Channel

in MHz

1

26.965

2

26.975

3

26.985

4

27.005

5

27.015

6

27.025

7

27.035

8

27.055

9

27.065

10

27.075

11

27.085

12

27.105

13

27.115

14

27.125

15

27.135

16

27.155

17

27.165

18

27.175

19

27.185

20

27.205

CB

Channel Frequency

Channel

in MHz

21

27.215

22

27.225

23

27.255

24

27.235

25

27.245

26

27.265

27

27.275

28

27.285

29

27.295

30

27.305

31

27.315

32

27.325

33

27.335

34

27.345

35

27.355

36

27.365

37

27.375

38

27.385

39

27.395

40

27.405

Frequency Ranges

The Cobra 19 DX IV transceiver represents one of the most advanced AM 

two-way radios for use 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.

Maintenance/Adjustment

Your Cobra CB transceiver is specifically designed for the environment encountered

in mobile installations. The use of all solid state circuitry and its light weight result 

in high reliability. Should a failure occur, however, review the following, then if

necessary, replace parts only with identical parts. Do not substitute.

1. Check connections to the source of power 

and make sure it is the 13.8 VDC required 

to operate your radio.

2. Check the fuses in the DC power cord. 

The main power lead (red) has a two amp 

3AG type fuse in its holder. Use only the 

above specified type and size fuse for 

maximum protection. Failure to do so 

will void the warranty.

3. Make certain the microphone is properly 

plugged in.

4. Make certain the antenna is properly 

assembled and connected.

If you are unable to correct the problem, 

refer to product service on page 14 for 

the correct procedure for warranty and 

post-warranty service from Cobra.

Intro

Operation

Customer
Assistance

Warranty

Notice

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Warning

Installation

Customer
Assistance

Operating Your Mobile Radio

Intro

Operation

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Notice

Secondary Icons

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Warning

Installation

Customer
Assistance

Operating Your Mobile Radio

Check Power Source

Check Fuses in DC Power Cord

Check Microphone Connection

Check Antenna Connection

 


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13

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12 English

Specifications

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 + 65° C

Microphone

Plug-in dynamic

Input Voltage 

13.8VDC nom. (negative ground)

Current Drain

Transmit: AM full mod., 1.4A (maximum)

Receive: Squelched, 0.9 A;

full audio output, 1.2A (nominal)

Size

6

7

8

" D x 6

3

4

" W x 1

7

8

" H

Weight

3.25 lbs.

Antenna Connector

UHF; SO-239

Meter

LCD’s; 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 10dB (S+N)

Selectivity

6 dB @ 7 KHz, 60 dB @ 10KHz

Image Rejection

60 dB, typical

Adjacent-Channel Rejection

50 dB, typical

Automatic Noise Limiter

Built-in

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Warranty

Warranty and Trademark
Acknowledgement

Limited One-Year Warranty

For Products Purchased in the U.S.A.

Cobra Electronics Corporation warrants that its Cobra CB radios, and the component

parts thereof, will be free of defects in workmanship and materials for a period of

one year 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 may 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.

For Products Purchased Outside the U.S.A.

Please contact your local dealer for warranty information.

Trademark Acknowledgement 

Cobra

®

, Nothing comes close to a Cobra

®

and the snake design are registered

trademarks of Cobra Electronics Corporation, USA. Cobra Electronics Corporation™

is a trademark of Cobra Electronics Corporation, USA.

 


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15

Nothing comes close to a Cobra

®

Product Service

14 English

Intro

Operation

Customer
Assistance

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Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Product Service

Product Service

If you have any questions about operation or installing your new 

Cobra product, or if you are missing parts… 

Please call Cobra first! DO NOT RETURN THIS PRODUCT TO THE STORE! 

See customer assistance on page A1.

For Products Purchased in the U.S.A.

If your product should require factory service, please call Cobra first before sending

your radio. This will ensure the fastest turn-around time on your repair. You may be

asked to send your radio to the Cobra factory. It will be necessary to furnish the

following 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 of 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 radio. Include a typed 

or clearly printed name and address of where the radio is to be returned. 

4. Pack radio 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 Priority Mail to avoid loss in 

transit to Cobra Factory Service, Cobra Electronics Corporation, 

6500 West Cortland Street, Chicago, Illinois 60707 U.S.A. 

6. If the radio is in warranty, upon receipt of your radio it will either be 

repaired or exchanged depending on the model. 

Please allow approximately three to four weeks before contacting Cobra 

for status. If the radio 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 773-889-3087 for assistance.

For Products Purchased in Canada

For out of warranty service, ship prepaid this product to: AVS Technologies Inc., 

2100 Trans Canada Hwy S., Montreal, Quebec, H9P 2N4. We reserve the right to 

repair or replace the radio with an equivalent product. Please include the following

information: Date of Purchase, Model Number, Dealer Purchased From, 

Dealer Address, Dealer Phone Number.

For Products Used in Canada

Industry Canada Notice

Operation is subject to the following two conditions: 1) this device may not cause

interference, and 2) this device must accept any interference, including interference

that may cause undesired operation of this device.

For Products Purchased Outside the U.S.A. or Canada

Please contact your local dealer for product service information.

Intro

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Installation

Customer
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Customer Assistance

 


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16 English

Accessories

Intro

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Customer Assistance

21" Base Loaded Magnet 
Mount Antenna

HG A1000

$28.95

38" Base Loaded Magnet 
Mount Antenna

HG A1500

$46.95

54" Base Loaded Magnet 
Mount Antenna

HG A2000

$99.95

Dynamic 
External Speaker

HG S100

$21.95

Noise Canceling 
External Speaker

HG S300

$28.95

Noise Canceling With 
Talk Back External Speaker

HG S500

$32.95

Accessories

Four Pin Noise Canceling 
Microphone

HG M77

$30.95

Four Pin Power 
Microphone 

HG M75

$25.95

Four Pin Replacement 
Dynamic Microphone

HG M73

$19.95

Four Pin Premium 
Noise-Cancelling Microphone

HG M84

$74.95

Four Pin Premium Noise-
Cancelling Microphone 

HG M84W

$74.95

Wood Grain

Replacement 
Microphone Bracket

741-080-9-001

$0.45

Replacement 
Mounting Bracket

251-353-9-001

$4.50

Replacement 
Thumb Screws

634-081-9-001

$0.60