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25 NWST Manual3.3 6/15/99 12:43 PM Page 1
How to Use Your
Cobra 25 NW ST
Contents
Features...........................................................................................1
The CB Story..................................................................................A1
FCC Regulations
FCC Warnings
Included Accessories
Controls & Indicators ................................................................A2
Features of This Product
Our Thanks to You ...................................
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25 NWST Manual3.3 6/15/99 12:43 PM 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 int e rf e re with the dri ver or passenger. The transceiver is usually mounted to the under- side of the dash with the microphone bracket beside it. Mounting and Connection Mounting and 1 Connection Hold the radio with the mounting bracket in the exact desire
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25 NWST Manual3.3 6/15/99 12:43 PM Page 4 Installation 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 t wo) to the engine block (or chas- sis).A negatively grounded vehicle has its negative lead grounded to the chassis. 6 Plug power cable into back of unit marked “Power” . Be sure to observe polarity markings. Note 7 Mount the microphone Connectin
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25 NWST Manual3.3 6/15/99 12:43 PM Page 6 Antennas Ignition Noise Interference Use of a mobile receiver at low signal levels is CB Antenna CB Antenna normally limited by the presence of electrical Since the maximum allowable power output of Note noise. The primary source of noise in automobiles the transmitter is limited by the FCC,the antenna For optimum performance in is from the alternator and ignition system. is critical in affecting transmission distance. Only passenger cars the ideal ant
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25 NWST Manual3.3 6/15/99 12:43 PM Page 8 Operation Operation Turning On Setting Channel Selector Turning On Setting Channel Selector Make sure the power cord, antenna and micro- phone are connected to their proper connectors before starting. 1 Select one of forty channels and adjust volume. The selected channel is indicated by the LED readout directly above the channel selector knob 1 The CB/PA button should be in the CB position. 2 Ro t ate the On/Off Volume knob c l oc kw i s
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25 NWST Manual3.3 6/15/99 12:43 PM Page 10 Operation Operation S-Meter To Receive To Receive S-Meter Swings proportionately to strength of incoming signal when receiving. 1 Rotate the On/Off Volume knob clockwise the green RT/TX LED will be illiuminated. Selecting A Channel Selecting A Channel Note Switch to 9 (Emergency) or 19 (Information) for instant access to these channels. 1 Switch to NOR to select desired channel. 10 11
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25 NWST Manual3.3 6/15/99 12:43 PM Page 12 Operation Operation TM The SoundTracker System Activating SoundTracker™ Activating ™ While previous systems only “blanket out” or limit SoundTracker noise in higher sound frequencies, the revolution- TM ary new SoundTracker System actually reduces Note noise while leaving the signal intact in the recep- tion mode. In the transmission mode, it actually SoundTracker™ gives you strengthens the signal,providing you with a clearer, cleaner reception to s
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25 NWST Manual3.3 6/15/99 12:43 PM Page 14 Operation Operation Setting Squelch Dimmer Control Setting Squelch Dimmer Control Squelch is the “control gate” for incoming signals. Gate closed Note The Dim controls the brightness of the front panel,signal strength meter and channel display. 1 Rotate the DIM knob clockwise for 1 Full clockwise rotation closes the gate maximum brightness; counter-clockwise allowing only very strong signals to enter. for minimum. Gate open RF Gain Control
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25 NWST Manual3.3 6/15/99 12:43 PM Page 16 Operation Operation Gate set to Desired To Transmit To Transmit Squelch Setting (DSS) Caution! Be sure the antenna is properly connected to the radio before transmitting. Prolonged trans- mitting without an antenna,or a poorly matched antenna, 3 could cause damage to the To achieve the Desired Squelch Setting (DSS), transmitter. turn the Squelch control counterclockwise until you hear noise. Now turn the control Be sure to read the F.C.C. Rules
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25 NWST Manual3.3 6/15/99 12:43 PM Page 18 Operation Operation Setting Dynamike Setting Transmit Transmit Dynamike This controls the microphone sensitivity (outgoing audio level). 1 Initially, set fully clockwise so that maxi- mum voice volume is available. Dynamike 1 Push and hold mic button to transmit. may have to be reduced in some conditions. Transmitter is now activated.When transmit- ting, hold the microphone two inches from your mouth and speak in a clear, normal voice. Release t
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25 NWST Manual3.3 6/15/99 12:43 PM Page 20 Operation Operation External Speaker External Speaker PA (Public Address) PA (Public The external Speaker jack is used for remote Address) receiver monitoring. Note Note The external speaker should Speaker should have 8-ohm have 8-ohm impedance and be impedance and be rated to rated to handle at least 4.0 handle at least 4.0 watts. watts.When the external speak- er is plugged in,the internal Note speaker is automatically discon- The speaker should be
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25 NWST Manual3.3 6/15/99 12:43 PM Page 22 Operation Operation ANL (Automatic Noise Limiter) Switch ANL (Automatic Noise Limiter) Switch 1 When switched to ANL the Automatic Noise Limiter is activated.This helps reduce noise 3 created by the vehicle’s electronics. Push and hold microphone button and speak in a normal voice. Your voice will sound on the PA speaker. NB, OFF (Noise Blanker) Switch NB, OFF (Noise Blanker) Switch Note The RF noise blanker is very effective in reducing repeti
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25 NWST Manual3.3 6/15/99 12:43 PM Page 24 Temporary Mobile Set-Up Home And Office Set-Up Temporary Mobile Operation Base Station Operation Temporary Base Station (From 120V AC House Current) Mobile Set-Up For temporary mobile operation you may want to Operation purchase an optional cigarette lighter adapter To operate your transceiver from home or office (From 120V AC from your COBRA dealer.This adapter and a mag- you will need a 13.8 volt DC Power Pack rated at a House Current) netic mount a
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25 NWST Manual3.3 6/15/99 12:43 PM Page 26 Home And Office Set-Up 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 • 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 2 A Few Rules Plug power cable into bac
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25 NWST Manual3.3 6/15/99 12:43 PM Page 28 How Your CB Can Serve You How Your CB Can Serve You The FCC gives these examples of permitted and CB 10-Codes CB 10-Codes prohibited messages for channel 9. These are Citizen Bands have adopted the “10-CODES” for only guidelines and not all-inclusive: standard questions and answers. These codes p rovide quick and easy c o m m u n i ca t i o n ,e s pe c i a l l y Permitted Example Message in noisy areas. Following are some of the more common codes
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25 NWST Manual3.3 6/15/99 12:43 PM Page 30 How Your CB Can Serve You Frequency Ranges Code Meaning The COBRA 25 NW ST transceiver represents one 10-29 Time is up for contact of the most advanced AM two-way radios used as 10-30 Does not conform to FCC rules a Class D station in the Citizens Radio Service. This 10-33 Emergency traffic unit features advanced Phase Lock Loop (PLL) 10-34 Trouble at this station circuitry providing complete coverage of all 40 CB 10-35 Confidential inf
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25 NWST Manual3.3 6/15/99 12:43 PM Page 32 25 NW ST Specifications Limited Two Year Warranty GENERAL COBRA ELECTRONICS CORPORATION warrants that its CHANNELS. . . . . . . . . . . . . . . . . . . . . . . CB - 40 CH COBRA CB Radios, and the component parts thereof, will FREQUENCY RANGE. . . . . . . . . . . . . . . CB - 26.965 TO 27.405 MHZ FREQUENCY TOLERANCE. . . . . . . . . . 0.005 % be free of defects in workmanship and materials for period FREQUENCY CONTROL . . . . . . . . . . . . PLL (PHAS
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25 NWST Manual3.3 6/15/99 12:43 PM Page 34 Optional Accessories Optional Accessories Replacement Mounting Replacement Thumb Screws Replacement DC Power Cord Bracket For in vehicle use For in vehicle use Power Microphone Noise Canceling/Power Echo/Noise Canceling For in vehicle use 634-081-9-001 $0.60 426-002-N-001 $7.50 Microphone Microphone For in vehicle use 251-199-9-001 $4.50 CA 75 $21.95 For in vehicle use For in vehicle use CA 77 $24.95 CA 79 $59.95 Replacement Microphone 28” Full Range
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25 NWST Manual3.3 6/15/99 12:43 PM Page 36 Accessory Order Form Item # Description Cost Ea. Qty. Amount 4 2 6 - 0 0 2 - N - 0 0 1 R e p l a ce m e nt DC Power Co rd $ 7 . 5 0 2 5 1 - 1 9 9 - 9 - 0 0 1 R e p l a ce m e nt M o u nting Br a c ke t $ 4 . 5 0 634-081-9-001 Replacement Thumb Screws $0.60 741-080-9-001 Replacement Microphone Bracket $0.45 AT 35 28” Full Range Center Load, Magnetic Mount Antenna $19.95 AT 55 25” Glass Mount Antenna $27.95 AT 70 39” Full Range Base Load, Magnetic Mount
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25 NWST Manual3.3 6/15/99 12:43 PM Page 37 25 NW ST Cobra Electronics Corporation 6500 West Cortland Street Chicago, IL60707 O pe rating Instr u ctions If You Think You Need Service for your C o b ra 25 NW ST For t e c h n i cal assistance, please call our Au to m a ted Help Desk which can assist you by answering the most fr e q u e n t ly asked questions about C o b ra prod u ct s. CB Radio (773) 889-3087 24 hours a day, 7 days a week. A Consumer Service Representative can be reached throu
