Cobra 148NWST How To Use Manual
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Cobra 148NWST How To Use Manual

Cobra 148nwst: user guide
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Enlarged version
148 NW ST manual 3.3
6/15/99 3:11 PM
Contents
Features..................................................................................................1
The CB Story.........................................................................................A1
FCC Regulations
FCC Warnings
Included Accessories
Controls & Indicators.......................................................................A2
Our Thanks to You .............................................................................A3
SoundTracker
™
Customer Support
Location............................................................................................. 2
Mounting and Connection.........................................................2
CB Antenna.......................................................................................6
Marine Installation.........................................................................6
Ignition Noise Interference ..........................................................7
Operating Your 148 NW ST
Turning On Your CB........................................................................8
Setting Channel Selector............................................................. 9
To Receive..........................................................................................10
S-Meter...............................................................................................10
System................................................................11
™
..........................................................12
™
NB, Off, (Noise Blanker/Limiter) Switch...................................13
Dimmer Switch................................................................................14
RF Gain Control................................................................................14
Setting Squelch...............................................................................16
To Transmit........................................................................................20
RF Meter.............................................................................................21
External Speaker.............................................................................22
PA (Public Address)........................................................................23
Home And Office Set-Up .............................................................25
Temporary Mobile Set-up............................................................26
How Your CB Can Serve You..........................................................27
A Few Rules You Should Know ..................................................27
Channel 9 Emergency Messages..............................................27
CB 10 Codes......................................................................................29
Frequency Ranges.............................................................................31
148 NW ST Specifications..............................................................32
Warranty Information .....................................................................33
Optional Accessories .......................................................................34
Order Form ...........................................................................................36
If You Think You Need Service ...................................Back Cover
Page 1
How to Use Your
Cobra 148 NW ST
Features of This Product
• 40 CB Radio Channels
• 80 SSB Channels
• SoundTracker
™
System
• Heavy-Duty Dynamic
Microphone
• Full 4 Watts AM RF Power Ou t p u t
• 12 Watts SSB RF Power Output
• Instant Channel 9
• Front Panel 4-Pin Microphone
Connector
• Switchable Noise Blanker
• Adjustable Dynamike Boost
• Tactile Controls
• SWR Calibration Meter
• RF Gain
• 9 Ft Mic Cord
• Illuminated Front Panel
• Dimmer Control
CAUTION
!
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK DO NOT REMOVE COVER (OR BACK)
NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE
P E R S O N N E L
1
!

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Summary of Contents for Cobra 148NWST

  • Page 1: Table Of Contents

    148 NW ST manual 3.3 6/15/99 3:11 PM Page 1 How to Use Your Cobra 148 NW ST Contents Features...1 The CB Story...A1 FCC Regulations FCC Warnings Included Accessories Controls & Indicators...A2 Our Thanks to You ...A3 SoundTracker ™ Customer Support Installation Location...

  • Page 2: Installation

    148 NW ST manual 3.3 6/15/99 3:11 PM Page 2 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 inte rfe 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.
  • Page 3 148 NW ST manual 3.3 6/15/99 3:12 PM Page 4 Installation Note Connecting to an accessory fuse prevents the unit from being left on accidentally, and also per- mits operating the unit without running the engine. Note In positive ground vehicles the red wire goes to the chassis and the black wire is connected to the ignition switch.

  • Page 4: Antennas

    The unit requires very little current and therefore will not signifi- cantly discharge the vehicle’s battery. Even though the Cobra 148 NW ST has an auto- matic noise limiter, in some installations ignition interference may be high enough to make good communications impossible.

  • Page 5: Operation

    148 NW ST manual 3.3 6/15/99 3:12 PM Page 8 Operation Turning On Turning On Make sure the power cord, antenna and micro- phone are connected to their proper connectors before starting. CB/PA button should be in the CB position. Ro t ate the On/Off Volume knob a normal listening level.

  • Page 6: S-Meter

    148 NW ST manual 3.3 6/15/99 3:12 PM Page 10 Operation To Receive To Receive Rotate the On/Off Volume knob clockwise the green RT/TX LED will be illuminated. S-Meter S-Meter Swings proportionately to strength of incoming signal when receiving. S/RF-SWR-CAL switch must be in the S/RF position to read the meter.

  • Page 7: Activating Soundtracker

    148 NW ST manual 3.3 6/15/99 3:12 PM Page 12 Operation Activating Activating SoundTracker™ ™ SoundTracker Push and release the is illuminated when SoundTracker™ is turned on. NB-ANL/ANL/OFF (Noise Blanker/Automatic Noise Limiter) Switch When switched to ANL the Automatic Noise ST button.

  • Page 8: Dimmer Control

    148 NW ST manual 3.3 6/15/99 3:12 PM Page 14 Operation Dimmer Control Dimmer Control Controls the brightness of the front panel,signal strength meter and channel display For maximum brightness turn counterclockwise for minimum illumination RF Gain Control RF Gain Control The RF Gain is used to optimize reception in strong or weak signal areas.

  • Page 9: Setting Squelch

    148 NW ST manual 3.3 6/15/99 3:12 PM Page 16 Operation Setting Squelch Setting Squelch Squelch is the “control gate” for incoming signals. Gate closed Full clockwise rotation closes the gate allowing only very strong signals to enter. Gate open Full counterclockwise rotation opens the “gate”...
  • Page 10 148 NW ST manual 3.3 6/15/99 3:12 PM Page 18 Operation Calibrate For Calibrate for SWR (Standing Wave Ratio) SWR (Standing Wave Ratio) Note SWR calibration is done to prop- erly adjust the length of the antenna and to monitor the quality of the coaxial cable and all RF connections.

  • Page 11: To Transmit

    148 NW ST manual 3.3 6/15/99 3:12 PM Page 20 Operation To Transmit To Transmit 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 transmitter.

  • Page 12: External Speaker

    Note Connect an external speaker to the external Cobra external speakers are speaker jack on the rear panel. rated at 10 watts. See Accessories page 39. PA (Public Address) Connect an external PA speaker to the PA jack on the rear panel.
  • Page 13 Operation 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 14: Temporary Mobile Set-Up

    Mobile Set-Up 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. How Your CB Can Serve You •...

  • Page 15: Cb 10 Codes

    148 NW ST manual 3.3 6/15/99 3:12 PM Page 28 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.”...

  • Page 16: Frequency Ranges

    Mission completed, all units secure 10-200 Police needed at Frequency Ranges The COBRA 148 NW ST 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 cover- age of all 40 CB channels.

  • Page 17: 148 Nw St Specifications

    Limited One Year Warranty Cobra Electronics Corporation 6500 West Cortland Street...

  • Page 18: Optional Accessories

    For in vehicle use CS 500 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.-8 p.m. M-F CST.

  • Page 19: Accessory Order Form

    Wisconsin residents add 5% Total 8:00 am - 8:00 pm,M-F, CST. Ma ke check or money order (no stamps) payable to: Cobra Accessories Dept. 6500 West Co rtland St . Ch i ca g o, IL 60707 State Exp. Date...

  • Page 20: If You Think You Need Service

    If you think you need service call 1.773.889.3087 “If your product should require factory service please call Cobra first before sending your unit in. This will ensure the fastest turn-around time on your repair.”...

  • Page 21: Fcc Regulations

    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 22: Controls And Indicators

    2 2 . Antenna Connector 2 3 . Power Jack Thank you for purchasing the Cobra 148 NW ST CB Radio. Properly used, this Cobra product will give you many years of reliable service. SoundTracker “Cuts noise coming in...strengthens signals going out.”...
  • Page 23 148 NW ST manual 3.3 6/15/99 3:12 PM Page 43 Notes Notes Notes Notes...

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