Cobra 20XTR Street Communicator Operating Instructions Manual

Cobra 20xtr: operating instruction

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20 XTR MANUAL.qxd
4/17/03
4:56 PM
Page 1
Accessory Order Form
Item #
Description
The Cobra® line of
251-199-9-001
Replacement
Mounting Bracket
quality products also
634-081-9-001
Replacement
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HG M73
Replacement
System)
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HG M77
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Operating Instructions for your
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Discover
©2003 Cobra Electronics Corporation
Printed in China
Part No. 480-079-P
The Citizens Band Story
FCC Information
20 XTR
2
3
4
Nothing Comes Close To A Cobra®
7
Cobra Electronics Corporation
6500 West Cortland Street
Chicago, IL 60707 USA
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
1
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
CB Tranceiver
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:
1.
CB Transceiver
5.
Operating Manual
(not pictured)
2.
Microphone
6.
FCC Rules
3.
Transceiver Bracket
(not pictured)
4.
Microphone Bracket
7.
Illuminated Antenna
A1

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Summary of Contents for Cobra 20XTR Street Communicator

  • Page 1 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.
  • Page 2: Controls And Indicators

    Power Cord External Speaker Connector 13.8V DC Our Thanks to You Customer Assistance Thank you for purchasing the Cobra 20 XTR Radio Transceiver. Properly used, this Cobra product will give you many years of reliable service. Customer Customer Assistance Assistance In this user’s manual, you should find all the...
  • Page 3: Table Of Contents

    20 XTR MANUAL.qxd 4/17/03 4:56 PM Page 1 Table of Contents Features Contents Features of This Product • Antenna Included The CB Story ......... .A1 FCC Information/Included Accessories .
  • Page 4 20 XTR MANUAL.qxd 4/17/03 4:56 PM Page 2 Operation Installation Mounting and Mounting and Connections Connections Select a location for the transceiver and microphone bracket that is convenient for operation. In Note automobiles, the transceiver is usually mounted to the The transceiver is held in the underneath of the dash panel, with the microphone universal mounting bracket by...
  • Page 5: Cb Antenna

    20 XTR MANUAL.qxd 4/17/03 4:56 PM Page 4 Installation CB Antenna CB Antenna Installation Do not remove foil covering from bottom of magnetic base. The foil protects the car finish. Note Mobile installations (cars, trucks, boats, etc) should be made only with a non-directional antenna Installation Instructions system.
  • Page 6: Operation

    20 XTR MANUAL.qxd 4/17/03 4:56 PM Page 6 Operation Turning on Turning on Your Radio Turn volume control clockwise to turn power on and set the desired listening volume. Microphone Microphone Connector Connector Allows for convenient removal of the microphone plug when storage is required.
  • Page 7: Squelch

    20 XTR MANUAL.qxd 4/17/03 4:56 PM Page 8 Operation Setting Setting Squelch Squelch Squelch is the “control gate” for incoming signals. Full clockwise rotation closes the gate Gate closed allowing only very strong signals to enter. STRONG SIGNALS MEDIUM SIGNALS WEAK SIGNALS Full counterclockwise rotation opens the “gate”...
  • Page 8: Channel Selection

    20 XTR MANUAL.qxd 4/17/03 4:56 PM Page 10 Operation Selecting a Channel Channel Rotate channel knob clockwise until desired channel is Selection displayed. Channel 9/NOR Channel Set CH 9 to obtain instant access emergency channel. 9/NOR In NOR position, all 40 CB channels are selected by the channel button.
  • Page 9: Ignition Noise Interference

    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 COBRA dealer or a 2-way radio technician for help in locating and correcting the source of severe noise.
  • Page 10: Maintenance

    Maintenance Maintenance and Adjustment 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.
  • Page 11: 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 said rules.
  • Page 12: Cb 10-Codes

    20 XTR MANUAL.qxd 4/17/03 4:56 PM Page 18 CB 10-Codes 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 Meaning...
  • Page 13: Frequency Ranges

    Frequency Ranges Frequency Frequency Ranges Ranges The Cobra 20 XTR 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.
  • Page 14: Warranty

    U.S.A. Cobra Electronics COBRA will, without charge, repair or replace, at its option, a Corporation defective CB Transceiver upon delivery to the COBRA factory...
  • Page 15: Accessories

    20 XTR MANUAL.qxd 4/17/03 4:56 PM Page 24 Accessories Replacement Microphone Replacement Mounting Replacement Thumb Screws 634-081-9-001 Bracket Bracket 741-080-9-001 251-199-9-001 4 Pin Premium Noise- 4 Pin Premium Noise- 5 Pin Premium Noise- Cancelling Microphone Cancelling Microphone Cancelling Microphone HG M85 HG M84 Wood Grain HG M84W...

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