Cobra 29nwst Cb Tranciever Manual
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How to Use Your Cobra 29 NW STContents Features..................................................................................................1 The CB Story.........................................................................................A1 FCC Regulations FCC Warnings Included Accessories Controls & Indicators.......................................................................A2 Our Thanks to You.............................................................................A3 SoundTracker™...
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Installation Installation Location32 Mounting and ConnectionMounting and Connection Hold the radio with the mounting bracket in the exact desired location.If there is no inter- ference, remove the bracket and use it as a template to mark the location for the mount- ing screws.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...
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Installation Installation54Note 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. 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...
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Ignition Noise Interference AntennasUse 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 back- ground 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...
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The CB/PA button should be in the CB position.Operation9Operation Turning OnSetting Channel Selector 8Turning On Make sure the power cord,antenna and micro- phone are connected to their proper connectors before starting.Setting Channel Selector 21 Ro t ate the On/Off Volume knob c l oc kw i s eto a normal listening level.Selectone of forty channels and adjust volume. The selected channel is indicated by the LED readout directly above the channel selector knob129 NW ST manual3.3 6/15/99...
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While holdingmic button adjustthe SWR CAL knob so the meter needle swings to the CAL tmark on the meter (located on the right).Operation Operation Calibrate For SWR (Standing Wave Ratio)1110continuedNote 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 directions for more complete information). Note The reading will be slightly high- er on Channels 1 and 40 com- pared to Channel 20. Push and holdmic...
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Rotate the On/Off Volume knob clockwise the green RT/TX LED will be illuminated. Repeat the same steps two through five on Channel 1 and 40.This will check SWR for all channels. The S/RF-SWR-CAL switch must be in the S/RF position to read the meter.6While still holding down the mic button,set the S/RF SWR CAL switch to the SWR position, to read the SWR reading.5Operation13Operation121 Note When switched to SWR posi- tion the meter needle should ideally be as far to the left as possible....
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Operation Operation1514 Activating SoundTracker™Push and releasethe ST button.Red LED is illuminated when SoundTracker™ is turned on.1 The SoundTrackerTM System While previous systems only “blanket out”or limit noise in higher sound frequencies,the revolution- ary new SoundTrackerTM System actually reduces noise while leaving the signal intact in the recep- tion mode.In the transmission mode,it actually strengthens the signal,providing you with a significant reduction in noise on reception and...
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When switchedtoANL the Automatic Noise Limiter is activated. This helps reduce noise created by the vehicle’s electronics. When switchedtoNB/ANL position the RF Noise Blanker is also activated,providing increased noise filtration. When switchedtoOFF position all noise filtration will be turned off.Operation Operation1716 NB-ANL/ANL/ OFF (Noise Blanker/ Automatic Noise Limiter) Switch RF Gain Control Tone Hi/NorRF Gain Control The RF Gain is used to optimize reception in strong or weak signal areas.Tone...
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Full clockwiserotation closes the gate allowing only very strong signals to enter.Full counterclockwiserotation opens the “gate”allowing all signals in. To achieve the Desired Squelch Setting (DSS), turn the Squelch control counterclockwise until you hear noise. Now turn the control clockwisejust until the noise stops. This is the DSS setting.Dimmer Switch Setting Squelch Squelch is the “control gate” for incoming signals.19Dimmer Switch18 OperationOperation1213 Ro t a tethe...