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Mic Cord 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 29 NW ST manual3.3 6/15/99 12:50 PM Page 2 InstallationInstallation Location Mounting and 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 underside of the dash with the microphone bracket beside it. Mounting and Connection - - “” - 29 NW ST manual3.3 6/15/99 12:50 PM Page 4 InstallationInstallation Note Connecting to an accessory fuse prevents the unit from being left on accidentally, and also permits operating the unit without running the engine. Note 6 Plug power cable into back of unit marked “Power”. Be sure to observe polarity markings. ’ - ’ - - - - - 29 NW ST manual3.3 6/15/99 12:50 PM Page 6 Ignition Noise InterferenceAntennas Use of a mobile receiver at low signal levels is normally limited by the presence of electrical noise. The primary source of noise in automobiles is from the alternator and ignition system. Typically, when signal level is adequate, the background noise does not present a serious problem. Also, when extremely low level signals are being received, the transceiver may be operated with the vehicle’s engine turned off.The unit requires very little current and therefore will not significantly discharge the vehicle’s battery. CB Antenna Note For optimum performance in passenger cars the ideal antenna location is on the center of the roof. Second choice is on the center of the trunk. Note Because many newer trucks feature fiberglass door skins,the - ” - 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 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. - 29 NW ST manual3.3 6/15/99 12:50 PM Page 8 OperationOperation 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 29 NW ST manual3.3 6/15/99 12:50 PM Page 10 OperationOperation Calibrate For SWR (Standing Wave Ratio) Calibrate for SWR (Standing Wave Ratio) SWR calibration is done to properly adjust the length of the antenna and to monitor the quality of the coaxial cable and all RF connections. This calibration is critical in order to achieve optimum performance. Note Calibration must be made in an open area (never in a garage). Vehicle doors must be closed. No one should be standing near the antenna.(See your antenna - - 29 NW ST manual3.3 6/15/99 12:50 PM Page 12 OperationOperation Selecting A Channel Note When switched to SWR position the meter needle should ideally be as far to the left as possible. Anything over 3 is not acceptable. A slight antenna height adjustment 5 While still holding down the mic button,set the S/RF SWR CAL switch to the SWR position, Selecting A Channel Note Switch to 9 (Emergency) or 19 (Information) for instant access to these channels. 29 NW ST manual3.3 6/15/99 12:50 PM Page 14 OperationOperation Note SoundTracker™ gives you clearer, cleaner reception to improve CB communications while on the air. The SoundTrackerTM System While previous systems only “blanket out” or limit noise in higher sound frequencies, the revolutionary new SoundTrackerTM System actually reduces noise while leaving the signal intact in the reception mode. In the transmission mode, it actually strengthens the signal,providing you with a significant reduction in noise on reception and transmission. Sound clarity is measured by the ratio of the signal level to the noise level. The higher the signal-to-noise r tio ” “” Activating SoundTracker™ Activating SoundTracker™ 29 NW ST manual3.3 6/15/99 12:50 PM Page 16 OperationOperation NB-ANL/ANL/OFF (Noise Tone Hi/Nor NB-ANL/ANL/ Tone Hi/Nor Blanker/Automatic Noise Limiter) Switch This switch is used to shape the Audio Response OFF (Noise to the operators preference. Blanker/ Automatic Noise Limiter) Switch N - ’ Operation Operation 29 NW ST manual3.3 6/15/99 12:50 PM Page 18 Operation Operation 29 NW ST manual3.3 6/15/99 12:50 PM Page 18 Full counterclockwise rotation opens the Gate open Dimmer Switch Dimmer Switch Note The Dimmer controls the brightness of the front panel, 2 signal strength meter and channel display. “gate” allowing all signals in. “” - Operation Operation 29 NW ST manual3.3 6/15/99 12:50 PM Page 20 Operation Operation 29 NW ST manual3.3 6/15/99 12:50 PM Page 20 To Transmit Transmit To Transmit Transmit Caution! Be sure the antenn...