Cobra Electronics 18 WXST II Ignition Noise Interference, Temporary Mobile Operation

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Operation

Ignition Noise Interference

Note

When using the unit with cig- arette adapter, turn off when not in use to avoid draining the battery.

Temporary

Mobile

Operation

Note

Red and Orange wires are con- nected to positive side of socket center tip. Black wire is connect- ed to negative side contacts.

Note

Radio resets to CH 9 when con- nected to cigarette lighter plug.

Ignition Noise Interference

Use of a mobile receiver at low signal levels is nor- mally limited by the presence of electrical noise. Under most operating conditions, 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 vehicle engine turned off. The unit requires very little current and therefore will not significantly discharge the vehicle battery.

Even though this radio has an automatic noise lim- iter, in some installations ignition interference may be high enough to make good communications impossible. Consult your COBRA dealer or a 2-way radio technician for help in locating and correcting the source of severe noise.

Temporary Mobile Operation

For temporary mobile operation, you may want to purchase an additional 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.

PA EXT

ANT

13.8V DC

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Contents How to Use Your Cobra 18WXST ContentsMounting and Connections InstallationOperationMounting and Connections InstallOperation CB Antenna OperationTurning on Your Radio Turning onSquelch Microphone ConnectorMicrophone Connector Setting Squelch Setting SquelchAT E Channel 9/Channel Set CB or WX ModeChannel Selection Channel 9/ Channel CB Weather CB/WeatherDual Watch Dual WatchScan ScanSoundtracker System Activating Soundtracker Activating SoundtrackerRX/TX Indicator LED RF PowerMeter RX/TX Indicator LEDRF Power Meter Rear Panel Antenna Connector External SpeakerPower Ignition Noise Interference Ignition Noise InterferenceTemporary Mobile Operation Temporary Mobile OperationOperating Procedure to Receive Operating Procedure to TransmitMaintenance and Adjustment MaintenanceMaintenance/ Adjustment Make certain the microphone is properly pluggedFew Rules That Should Be Obeyed Replacement WarningFew Rules You Should Know Channel Emergency Messages Use Channel 9 For Emergency Messages OnlyFreq AccessoriesFrequency Ranges MHzSpecifications SpecificationsBracket Accessories 2 Foot HG A450Accessories Order Info Ordering From U.S.ALimited Two Year Warranty Limited WarrantyNothing Comes Close to a Cobra If You Think You Need Service WX ST FCC Warnings Citizens Band StoryFCC Regulations What’s included with your CB RadioControls and Indicators Our Thanks to You Customer Support