Specifications

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How to Use Your

Cobra 25 LTD CLASSIC

Contents

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

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

FCC Regulations & Warnings

Included Accessories

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

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

Customer Support

Installation

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

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

Antennas

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

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

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

Operating Your 25 LTD Classic

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

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

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

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

NB/Off (Noise Blanker) Switch ...................................................12

ight/Dim Switch ..........................................................................12

CB/WX Switch...................................................................................13

RF Gain Control................................................................................13

Setting Squelch ...............................................................................14

To Transmit........................................................................................16

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

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

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

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

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

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

Temporary Mobile Set-Up ...........................................................21

Home and Office Set-Up..............................................................22

How Your CB Can Serve You...........................................................24

A Few Rules You Should Know ..................................................24

Channel 9 Emergency Messages..............................................24

CB 10 Codes......................................................................................26

Frequency Ranges..............................................................................28

25 LTD Classic Specifications.........................................................29

Warranty Information.......................................................................32

Optional Accessories.........................................................................33

Trademark Acknowledgement.....................................................35

Features of This Product

• 40 CB Radio Channels

• Heavy-Duty Dynamic

Microphone

• Full 4 Watts AM RF Power Output

• Instant Channel 9

• Front Panel 4-Pin Microphone

Connector

• Switchable Blanker

• Adjustable Dynamike Boost

• Tactile Controls

• 9 Ft Microphone Cord

• RF Gain

FCC Statement ...................................................................................30

Summary of content (21 pages)

PAGE 1
Contents How to Use Your Cobra 25 LTD CLASSIC Features ..................................................................................................1 The CB Story .........................................................................................A1 FCC Regulations & Warnings Included Accessories Controls & Indicators ........................................................................A2 Our Thanks to You ..............................................................................
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. Note The transceiver is usually mounted to the underside of the dash with the microphone bracket beside it.
PAGE 3
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. 6 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.
PAGE 4
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 Note maximum power output. Cobra loaded type For optimum performance in antenna models are highly recommended for passenger cars the ideal anten- most installations.
PAGE 5
Operation Operation Turning On Turning On Setting Channel Selector Setting Channel Selector Make sure the power cord, antenna and microphone are connected to their proper connectors before starting. 1 8 1 The CB/PA button should be in the CB position. 2 Rotate the On/Off Volume knob a normal listening level. Select one of forty channels and adjust volume.
PAGE 6
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 LED and channel display will be illuminated. Selecting A Channel Note Switch to 9 (Emergency) for instant access to these channel. 1 10 Switch to NORMAL to select desired channel.
PAGE 7
Operation NB, OFF (Noise Blanker) Switch Operation NB, OFF (Noise Blanker) Switch Note 1 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.
PAGE 8
Operation Operation Setting Squelch Gate set to Desired Squelch Setting (DSS) Setting Squelch Squelch is the “control gate” for incoming signals. Gate closed STRONG SIGNALS STRONG SIGNALS WEAK SIGNALS NOISE WEAK SIGNALS 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.
PAGE 9
Operation To Transmit Operation Transmit Transmit To Transmit Caution! HOLD 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 Setting Dynamike® Setting Dynamike® Select desired channel. 1 This controls the microphone sensitivity (outgoing audio level).
PAGE 10
Operation Operation External Speaker External Speaker PA (Public Address) PA (Public Address) The external Speaker jack is used for remote receiver monitoring. 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 Speaker should have 8-ohm impedance and be rated to handle at least 4.0 watts. Note Note 1 Cobra external speakers are rated at 10 watts.
PAGE 11
Operation Temporary Mobile Set-Up ANL (Automatic Noise Limiter) Switch HOLD 1 3 Push and hold microphone button and speak in a normal voice. Your voice will sound on the PA speaker. When switched to CB/ANL the Automatic Noise Limiter is activated. This helps reduce noise created by the vehicle’s electronics. Temporary Mobile Operation For temporary mobile operation you may want to purchase an optional cigar lighter adapter from your COBRA dealer.
PAGE 12
Home And Office Set-Up Base Station Operation (From 120V AC House Current) 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. 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.
PAGE 13
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 A Few Rules You Should Know A.
PAGE 14
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.
PAGE 15
Frequency Ranges 25 LTD Classic Specifications The COBRA 25 LTD Classic 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 2 3 4 5 26.965 26.975 26.985 27.005 27.015 21 22 23 24 25 27.215 27.225 27.255 27.235 27.245 6 7 8 9 10 27.025 27.035 27.055 27.
PAGE 16
FCC Statement FCC Part 15.19 Warning Statement THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. FCC Part 15.21 Warning StatementNOTE: THE GRANTEE IS NOT RESPONSIBLE FOR ANY CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY THE PARTY RESPONSIBLE FOR COMPLIANCE.
PAGE 17
Limited Two Year Warranty Cobra Electronics Corporation 6500 West Cortland Street Chicago, Illinois 60707 For Products Purchased In The U.S.A. Cobra Electronics Corporation warrants that its Citizens Band radio, and the component parts thereof, will be free of defects in workmanship and materials for a 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.
PAGE 18
OptionalAccessories Trademark Acknowledgement Cobra®, Dynamike®, 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.
PAGE 19
NOTES 36
PAGE 20
25 LTD Classic 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.
PAGE 21
Controls and Indicators Our Thanks to You Thank you for purchasing the Cobra 25 LTD Classic CB Radio. Properly used, this Cobra product will give you many years of reliable service. 1. 4-Pin Microphone Connector 2. Power On/Off/Volume/ Squelch 13 Customer Assistance Should you encounter any problems with this product, or not understand its many features, please refer to this owner’s manual.