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Cobra 25-NW How To Use Manual

Cobra 25-nw: user guide
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Contents
Features...........................................................................................1
The CB Story..................................................................................A1
FCC Regulations
FCC Warnings
Included Accessories
Our Thanks to You ......................................................................A3
Customer Support
Location.......................................................................................2
Mounting and Connection...................................................2
CB Antenna ................................................................................6
Marine Installation...................................................................6
Ignition Noise Interference ...................................................7
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
How Your CB Can Serve You...................................................25
A Few Rules You Should Know............................................25
Channel 9 Emergency Messages .......................................25
CB 10 Codes ...............................................................................27
Frequency Ranges......................................................................29
25 NW Specifications ................................................................30
Warranty Information ..............................................................31
Optional Accessories.................................................................32
Order Form ....................................................................................34
If You Think You Need Service .............................Back Cover
How to Use Your
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
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK DO NOT REMOVE COVER (OR BACK)
NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE
1
!
DO NOT OPEN
PERSONNEL
!

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  • Page 1: Table Of Contents

    Warranty Information ...31 Optional Accessories...32 Order Form ...34 If You Think You Need Service ...Back Cover How to Use Your Cobra 25 NW Features of This Product • 40 CB Radio Channels • Heavy-Duty Dynamic Microphone • Full 4 Watts AM RF Power Output •...

  • Page 2: Installation

    Installation 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 self- tapping screws and star wash- ers. The mounting must be mechanically strong, conve- niently located.
  • Page 3 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 recep- tacle marked “ANT” on the back of the unit. Installation PA.SP. EXT.SP. — POWER continued...
  • Page 4 Installation Note Before installing the CB radio, visually check the vehicle’s battery connection to deter- mine which terminal, positive or negative, is grounded (pos- itive is the larger of the two) to the engine block (or chas- sis). A negatively grounded vehicle has its negative lead grounded to the chassis.
  • Page 5 TE OF FCC ID:BBO3K229LTD JUNE 98 COBRA MADE IN CHINA 806135776 PRECISION ENGINEERED PRODUCT OF ELECTRONICS CORP. CHICAGO, ILL.60707 Plug power cable into back of unit marked “Power” . Be sure to observe polarity markings. Mount the microphone bracket on the right side of the unit (driver’s left)

  • Page 6: Antennas

    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. FCC ID:BBO3K229LTD...

  • Page 7: Ignition Noise Interference

    The unit requires very little current and therefore will not signifi- cantly 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.

  • Page 8: Operating Your 25 Nw Turning On Your Cb

    Operation Turning On Turning On Make sure the power cord, antenna and micro- phone are connected to their proper connectors before starting. SIG 1 5 7 9 +30dB O F F CB/PA button should be in the CB position. Rotate the On/Off Volume knob a normal listening level.

  • Page 9: Setting Channel Selector

    Setting Channel Selector LTD CLASSIC M I N M I N M A X Select one of forty channels and adjust volume. The selected channel is indicated by the LED readout directly above the channel selector knob M A X Operation Setting Channel Selector...

  • Page 10: To Receive

    Operation To Receive Selecting A Channel Note Switch to 9 (Emergency) or 19 (Information) for instant access to these channels. To Receive Rotate the On/Off Volume knob clockwise the green RX/TX LED will be illiuminated. Selecting A Channel 25 NW LTD CLASSIC Switch to NOR to select desired channel.

  • Page 11: S-Meter

    Operation S-Meter S-Meter Swings proportionately to strength of incoming signal when receiving.

  • Page 12: Dimmer Control

    Operation 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 LTD CLASSIC S Q L M I N M A X Rotate the...

  • Page 13: Setting Squelch

    Setting Squelch Squelch is the “control gate” for incoming signals. SIG 1 5 7 9 +30dB O F F Full clockwise rotation closes the gate allowing only very strong signals to enter. SIG 1 5 7 9 +30dB O F F Full counterclockwise rotation opens the “gate”...
  • Page 14 Operation Gate set to Desired Squelch Setting (DSS) STRONG SIGNALS MEDIUM SIGNALS WEAK SIGNALS NOISE SIG 1 5 7 9 +30dB O F F To achieve the Desired Squelch Setting (DSS), turn the Squelch control until you hear noise. Now turn the control clockwise just until the noise stops.

  • Page 15: To Transmit

    Operation To Transmit To Transmit LTD CLASSIC Caution! Be sure the antenna is properly connected to the radio before transmitting. Prolonged trans- mitting without an antenna, or a poorly matched antenna, could cause damage to the M I N M A X M I N M A X transmitter.

  • Page 16: Setting Dynamike

    Operation Setting Dynamike Setting Dynamike This controls the microphone sensitivity (outgoing audio level). SIG 1 5 7 9 +30dB O F F Initially, set fully mum voice volume is available. Dynamike may have to be reduced in some conditions. LTD CLASSIC M I N M I N M A X...

  • Page 17: Transmit

    Transmit PUSH & HOLD Push and hold mic button to transmit. Transmitter is now activated. When transmit- ting, 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.

  • Page 18: External Speaker

    4.0 watts. When the external speak- SERIAL NO.:806135776 PRECISION ENGINEERED PRODUCT OF er is plugged in, the internal COBRA ELECTRONICS CORP. CHICAGO, ILL.60707 speaker is automatically discon- nected. Note Cobra external speakers are rated at 15 watts. See accessories page 33.

  • Page 19: Pa (Public Address)

    PA (Public Address) FCC ID:BBO3K229LTD COBRA MADE IN CHINA 6135776 GINEERED PRODUCT OF Connect an external PA speaker to the PA jack on the rear panel. SIG 1 5 7 9 +30dB O F F CB PA switch to PA position.
  • Page 20 Operation PUSH & HOLD Push and hold microphone button and speak in a normal voice. Your voice will sound on the PA speaker. SIG 1 5 7 9 +30dB O F F Adjust PA speaker volume with the Dynamike control. LTD CLASSIC M I N M A X...

  • Page 21: Anl (Automatic Noise Limiter) Switch

    ANL (Automatic Noise Limiter) Switch SIG 1 5 7 9 +30dB O F F When switched to Limiter is activated. This helps reduce noise created by the vehicle’s electronics. NB, OFF (Noise Blanker) Switch SIG 1 5 7 9 +30dB V O L S Q L O F F...

  • Page 22: 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 mag- netic mount antenna allow you to quickly “install” your transceiver for temporary use. DATE OF...

  • Page 23: Home And Office Set-Up

    Home And Office Set-Up — 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.
  • Page 24 Home And Office Set-Up SERIAL NO.:806135776 PRECISION ENGINEERED PRODUCT OF COBRA ELECTRONICS CORP. CHICAGO, ILL.60707 DATE OF MFG :JUNE 98 FCC ID:BBO3K229LTD COBRA MADE IN CHINA Plug power cable into back of unit marked “Power” . Be sure to observe polarity markings.

  • Page 25: How Your Cb Can Serve You

    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 •...
  • Page 26 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 “Tornado sighted six miles north of town.” “Post number 10. No tornado sighted.” “Out of gas on I-95 at mile marker 211.”...

  • Page 27: Cb 10 Codes

    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...
  • Page 28 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...

  • Page 29: 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.

  • Page 30: 25 Nw Specifications

    25 NW Specifications GENERAL CHANNELS ......CB - 40 CH FREQUENCY RANGE....CB - 26.965 TO 27.405 MHZ FREQUENCY TOLERANCE .

  • Page 31: Warranty Information

    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.

  • Page 32: Optional Accessories

    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 Noise- Cancelling 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...
  • Page 33 HG S300 $28.95 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.

  • Page 34: Order Form

    $30.95 $25.95 $21.95 $28.95 $32.95 Subtotal (Tax if applicable) Shipping/handling Total 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 State Exp. Date...
  • Page 35 The Cobra line of quality products also includes: • MicroTalk • Radar Detectors • SafetyAlert Traffic Warning Systems • HighGear • HighGear Nothing comes close to a Cobra ™ Radios ® ™ CB Accessories ™ Power Inverters ™...

  • Page 36: If You Think You Need Service

    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 follow- ing in order to have the product serviced and returned.
  • Page 37 25 NW LTD CLASSIC for your Cobra 25 NW LTD CLASSIC Operating Instructions CB Radio “Ingenious Products for Easier Communication.”...
  • Page 38 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 39: Controls & Indicators

    M I N DATE OF FCC ID:BBO3K229LTD MFG :JUNE 98 COBRA MADE IN CHINA SERIAL NO.:806135776 PRECISION ENGINEERED PRODUCT OF COBRA ELECTRONICS CORP. CHICAGO, ILL.60707 LTD CLASSIC M A X M I N M A X PA.SP. EXT.SP. – POWER...

  • Page 40: 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.

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