Cobra 20XTR Service Manual

26

Accessory Order Form

Tax Table

Ohio,Wisconsin residents add 5%
Indiana, Michigan residents add 6 %
Illinois residents add 8.75%
California residents add 7.25%

Please print clearly

Name___________________________________________________
Address (No P. O. Box)_____________________________________
City____________________________________St ate____________
Zip_____________Telephone (____)__________________________
Credit Card No._________________________Exp . Dat e_________
Customer Signature__________________________________
Circle One: Visa MasterCard Discover

Subtotal

(Tax if applicable)

Shipping/handling

Total

Shipping & Handling*

Amount of Shipping/
Order 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 2-3 weeks for
delivery in the U.S. Prices subject
to change without notice.

Item # Description Cost Ea. Qty. Amount

251-199-9-001 Replacement

Mounting Bracket

634-081-9-001 Replacement

Thumb Screws

741-080-9-001 Replacement

Microphone Bracket

HG M84 4 Pin Premium Noise-

Cancelling Microphone

HG M84W 4 Pin Premium Noise-

Cancelling Microphone
Wood Grain

HG M85 5 Pin Premium Noise-

Cancelling Microphone

HG M73 Replacement

Dynamic Microphone

HG M75 4 Pin Power Microphone

HG M77 Noise Canceling

Microphone

HG S100 Dynamic External Speaker

HG S300 Noise Canceling

External Speaker

HG S500 Noise Canceling With

Talk Back External Speaker

The Cobra® line of
quality products also
includes:

•CB Radios

• microTALK® Radios

•Radar/Laser Detectors

•Safety Alert®
Traffic Warning Systems

•Accessories

• GPS (Global Positioning
System)

• HighGear™ Accessories

•Power Inverters

•VHF Marine Radios

1. CB Transceiver

2. Microphone

3. Tr ansceiver Bracket

4. Microphone Bracket

5. Operating Manual

(not pictured)

6. FCC Rules

(not pictured)

7. Illuminated Antenna

CB Tranceiver

A1

The Citizens Band Story
FCC Information

4

7

2

1

3

Nothing Comes Close To A Cobra®

20 XTR

Street Communicator

Operating Instructions for your

20 XTR

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.)

FCC Regulations

FCC regulations permit only "transmissions" (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.

What’s included with your CB Radio:

©2003 Cobra Electronics Corporation
Printed in China

Part No. 480-079-P

Cobra Electronics Corporation

6500 West Cortland Street

Chicago, IL 60707 USA

20 XTR MANUAL.qxd 4/17/03 4:56 PM Page 1

25

Optional
Accessories

You can find 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 mail this order
form to:
Cobra® Electronics
Attn: Accessories Department
6500 West Cortland Street
Chicago,IL 60707 USA.

Or fax the completed form to
us at 773-622-2269.

You may also order by phone
by calling 773-889-3087 (press
1 from the main menu) 8:00
a.m. to 6:00 p.m.CT, Monday
through Friday.

To order online

please visit our website:
www.cobra.com

Accessories

Dynamic External Speaker

HG S100

Noise Canceling External
Speaker

HG S300

Noise Canceling With Talk
Back External Speaker

HG S500

A2

Controls and Indicators

Thank you for purchasing the Cobra 20 XTR Radio
Transceiver. Properly used,this Cobra product will give
you many years of reliable service.

Customer Assistance

In this user’s manual, you should find all the
information you need to operate your radio. 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,
Monday through Friday (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. [e-mail] (e-mail).

For Assistance Outside the U.S.A.

Contact Your Local Dealer

A3

1

7 6

Our Thanks to You

Customer Assistance

5

10

Front Side

1. Microphone Connector.

2. Off/On/Volume.

3. Squelch.

4. Channel 9/NOR

5. CB/PA

6. Channel Selector

Button.

7. LED Channel Display.

8. S/RF Power Meter.

9. TX Indicator LED.

10. Microphone

Back Side

11. Antenna Connector

12. Public Address

13. Power Cord

14. External Speaker

Connector

4

8

11

13

14

12

2 3

9

Customer
Assistance

20 XTR MANUAL.qxd 4/17/03 4:56 PM Page 4

ANT

EXT

PA

13.8V DC

1

Contents

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

FCC Information/Included Accessories . . . . . . . . . . . . . .A1

Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A2

Customer Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A3

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Installation/Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Mounting/Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

CB Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Turning on Your Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Microphone Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Squelch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Channel Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Channel 9/NOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

CB/PA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

S/RF Power Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

TX Indicator LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Real Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Ignition Noise Interference . . . . . . . . . . . . . . . . . . . . . . . . . .13

Temporary Mobile Operation . . . . . . . . . . . . . . . . . . . . . . .13

Operation to Receive/Transmit . . . . . . . . . . . . . . . . . . . . . .14

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Replacement Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Rules You Should Know . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Channel 9 Emergency Messages . . . . . . . . . . . . . . . . . . . .16

CB Distress Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

CB 10-Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Frequency Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

War rant y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Product Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Order Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Features of This Product

•Antenna Included

•Antenna Illuminates
When PTT Is Pressed

• 40 CB Radio Channels

• Instant Channel 9/NOR

•PA System

•Compact Size

•Dynamic Microphone

•9 Foot Mic Cord

•Front Panel Microphone
Connector

Table of Contents

Features

20 XTR MANUAL.qxd 4/17/03 4:56 PM Page 1

 Connect the red lead of DC power cord to an

accessory 12 volt fuse.

 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.

 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.

 Attach the 4-pin microphone cable to receptacle

on front of unit and install unit in bracket securely.

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.

 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.

 Drill necessary holes and secure mounting bracket

in location.

 Connect the antenna cable plug to the receptacle

marked “ANT”on the back of the unit.

3

Mounting and
Connections

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).

2

Mounting and
Connections

Note

The transceiver is held in the
universal mounting bracket by
two thumb screws,permitting
adjustment at the most
convenient angle.

A universal mounting bracket
is supplied along with self
tapping screws and star
washers.

OperationInstallation Installation

CB Transceiver

20 XTR MANUAL.qxd 4/17/03 4:56 PM Page 2

CB Tranceiver

PA

ANT

EXT

13.8V DC

Installation Instructions

 This magnetic mount antenna has

been tested to withstand normal
high speed driving.The magnet
will hold securely under the
following conditions. Always make
sure the antenna base is on a clean, flat, painted or
unpainted surface. The magnetic base will not hold
on non-metallic or aluminum surfaces. Periodically
clean all parts of antenna to maintain maximum
performance.

 Clean dust and dirt away from area where antenna

will be placed.

 Place antenna on vehicle, roof,trunk lid,or any flat

surface. For best results centrally locate.

 Run coax cable thru to inside of vehicle routed in a

manner where it will not interfere with the driver or
controls and connect to the antenna connector of
the radio.

5

Warning

Warning: This product is intended for off road use.
Please check the laws and regulations in your state,
county and/or municipality regarding installation and
use of this product.

The manufacturer makes no claims as to the edequacy
of use and assumes no liability for any improper use or
installation. Installation and use are solely the
responsibility of the purchaser.

Installation

4

Installation

CB Antenna
Installation

Note

Mobile installations (cars,
trucks, boats,etc) should
be made only with a
non-directional antenna
system.

A standard antenna connector
(Type SO-239) is provided on
the Connector Box for easy
connection to a standard
PL-259 cable termination.

CB Antenna

Do not remove foil covering from bottom of
magnetic base.The foil protects the car finish.

20 XTR MANUAL.qxd 4/17/03 4:56 PM Page 4