Cobra Electronics 148 NW ST MeterS-Meter, To Receive, SoundTrackerTM System, Transmission

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148 NW ST manual 3.3 6/15/99 3:12 PM Page 10

Operation

Operation

To Receive

To Receive

 

 

 

 

1Rotate the On/Off Volume knob clockwise the green RT/TX LED will be illuminated.

S-MeterS-Meter

Swings proportionately to strength of incoming signal when receiving.

1 The S/RF-SWR-CAL switch must be in the S/RF position to read the meter.

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 transmission.

Sound clarity is measured by the ratio of the signal level to the noise level. The higher the signal-to-noise ratio, the better the sound.

How SoundTrackerTM Works

On Reception - “Cuts noise coming in”

With a normal CB, distant signals fall below the squelch level and are unintelligible. With a SoundTrackerTM CB, the noise level is cut up to 90%,which increases the signal-to-noise ratio and dramatically improves signal clarity. This also allows you to significantly reduce the squelch level,which greatly expands your listening range.

On Transmission - “Strengthens signals going out”

A SoundTrackerTM CB strengthens the transmit signal by more effectively using the available RF power output of the CB. The result is improved transmission signal clarity and an expanded transmission range.

Note

SoundTracker™ gives you clearer, cleaner reception to improve CB communications while on the air.

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Contents How to Use Your Cobra 148 NW ST Features of This ProductMounting and Connection InstallationLocationLocation Mounting and ConnectionNW ST manual 3.3 6/15/99 312 PM CB Antenna Marine InstallationAntennas Ignition Noise Interference CB AntennaTurning On Setting ChannelOperation SelectorSoundTrackerTM System MeterS-MeterTo Receive How SoundTrackerTM WorksSoundTracker OFF Noise Blanker Automatic Noise Limiter SwitchActivating Hi/Low/ ToneRF Gain Control USB/AM/LSB SwitchDimmer Control Dimmer Control RF Gain ControlGate set to Desired Squelch Setting DSS Setting Squelch Setting SquelchSquelch is the control gate for incoming signals Gate closedCalibrate For SWR Standing Wave Ratio Calibrate for SWR Standing Wave RatioTransmit TransmitRF Meter Address External Speaker External SpeakerPA Public PA Public AddressBase Station Operation From 120V AC House Current Base Station Operation From 120V AC House CurrentFew Rules You Should Know Temporary Mobile Set-Up How Your CB Can Serve YouTemporary Mobile Set-Up Channel Emergency MessagesPermitted Example Message CB 10-CodesFrequency Ranges NW ST Specifications Limited One Year Warranty Cobra Electronics CorporationOptional Accessories Order by mail or faxAmount Shipping Order Handling Accessory Order FormShipping & Handling Item #If You Think You Need Service If you think you need service callAm 800 pm,Monday through Friday, CST FCC Warnings CB StoryFCC Regulations What’s Included with Your 148 NW STControls and Indicators Our Thanks to You SoundTrackerTMNW ST manual 3.3 6/15/99 312 PM