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Cobra Electronics Mrf 80b Antenna Requirements and Attachment, Installation Requirements

Models: Mrf 80b

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F80 Installation.qxp:QXP-1058720374.qxp 12/29/06 10:03 AM Page 31

Installation and Start-Up

Antenna Requirements and Attachment

Antenna Requirements and Attachment

Antenna Requirements

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Your CobraMarine VHF radio requires an external marine antenna

to send signals into the air and to receive them. The radio is arranged to use any of the popular marine VHF antennas, but it is up to you to choose which antenna to use.

Since it represents the link between your radio and the outside world, Cobra suggests you purchase the best quality antenna, coaxial cable and connectors you can. This is best accomplished with the advice and guidance of a knowledgeable dealer who can assess the variables involved with your particular boat and preferences.

WARNING

Compliance with FCC requirements for Radio Frequency Exposure is the responsibility of both the antenna installer and the radio operator.

Safe Maximum Permissible Exposure (MPE) Radius

To avoid health hazards from excessive exposure to RF energy, FCC OET Bulletin 65 establishes an MPE radius of 10 ft (3 m) for the maximum power of your radio with an antenna having a maximum power gain of 9 dBi.

This means that all persons must be at least 10 ft (3 m) away from the antenna when the radio is transmitting.

Installation Requirements

■An omnidirectional antenna with a gain not greater than 9 dBi must

be mounted at least 16.4 ft (5 m) above the highest deck where people may be during radio transmissions, measured vertically from the lowest point of the antenna. This provides the minimum separation distance to comply with RF exposure requirements and is based on the MPE radius of 10 ft (3 m) plus the 6.6 ft (2 m) height of an adult.

■For vessels without structure to mount the antenna as described in A, it must be mounted as follows AND all persons must be outside the

10 ft (3 m) MPE radius during radio transmissions. The antenna must

be mounted so that its lowest point is at least 3.3 ft (1 m) vertically above the heads of all persons during radio transmissions.

Nothing Comes Close to a Cobra® 31

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Cobra Electronics Mrf 80b owner manual Antenna Requirements and Attachment, Safe Maximum Permissible Exposure MPE Radius

Contents

Customer Assistance For Assistance in the U.S.A Our Thanks to you Customer AssistanceFor Assistance Outside the U.S.A Product Features Indicators and ConnectionsProduct Features Backlit LCD Liquid Crystal Display Screen Microphone/SpeakerBacklit LCD Liquid Crystal Display Screen Microphone/Speaker with Auxiliary ControlsTable Of Contents Important Safety Information Important Safety InformationSafety Training Information Always use only Cobra authorized accessories Recommendations for Marine Communication Recommendations for Marine CommunicationFCC Licensing Information VHF Marine Radio Procedures Voice Calling Digital Selective Calling DSC Digital Selective Calling DSCVessel Corsair calling the vessel Vagabond Maritel 888-Maritel Maritime Mobile Service Identity MmsiMmsi Numbers are available in the U.S.A. from these Sources Canada, ContactRadiotelephone Calls Radiotelephone CallsMarine Emergency Signals Emergency Messages and Distress ProcedureThree 3 spoken international emergency signals are If You Hear a Distress Call Marine Distress ProcedureTell where you are SayMarine Distress Procedure DSC VHF Marine Channel Assignments Navigational Public Correspondence Marine OperatorPort Operations Maritime Control156.100 156.05001A 156.050 156.15003A Government Only Unauthorized State Controlled U.S.A. Only20A 18A19A 21A21A U.S. Government Only Canada Coast Guard Only 23A Government Only156.225 156.17563A 156.175 64A 156.225Digital Selective Calling Voice communications not allowed 64A U.S. Government Only Canada Commercial FishingNon-Commercial Recreational Non-Commercial Intership Only156.975 156.92578A 156.925 79A 156.97581A U.S. Government Only Environmental Protection Operations Noaa Emergency Weather Alert Noaa Weather Channels and AlertNoaa Weather Channels and Alert TestWorld City Time Zones World City Time ZonesE172.50 to W172.50 Included in this Package Included in this PackageInstalling Your Radio Mounting and Powering the RadioSurface Mount Microphone Bracket Mounting Kit Mounting Powering the RadioTo Install The Microphone Bracket Mounting Kit Flush MountElectrical Power Connection To Connect to a Power SourceLength Wire Gauge Antenna Requirements and Attachment Installation RequirementsSafe Maximum Permissible Exposure MPE Radius Antenna Lead Attachment Nmea Communication Cable To Install an External SpeakerExternal Devices and Connections External Speaker Not IncludedExternal Devices Connections To Install a Public Address SpeakerTo Install a GPS Device Public Address Speaker Not IncludedTo Install the Chartplotter CobraMarine Chartplotter MC 600C SeriesSatellite acquisition time is dependent on the GPS device Getting Started Tones and AlarmsGetting Started Power On-Off Volume/Squelch Channel Select Using Microphone Channel Select Using Radio KnobSquelch Local Mode Button Channel Preset Function ButtonsStandby and Receive From Standby Mode, You CanBasic Scrolling in the Setup Menus Setup Mode ProgrammingSetup Mode Programming Setup Menu To Enter the Setup MenuEnter the Setup menu and scroll to the Lamp ADJ menu LCD Display Lamp AdjustTo Adjust the LCD Display Lamp Level LCD ContrastTime Offset Key ToneTo Turn the Confirmation Key Tone On or Off To Change the Time OffsetA./International/Canada UIC Channel Maps To Set the Radio for the Area UsedExample Special FeaturesSpecial Features Rewind-Say-Again Feature Operation of Rewind-Say-AgainMake Your Own Recording Channels VoiceProductTransmissionFeaturesVoice Transmission Choose One of the Following Options to Change the ChannelVoice Transmission Transmit Power OutputTo Toggle Between the High and Low Power Modes Transmit a MessagePublic Address To Broadcast on the PA SpeakerNoaa All Hazards/Weather Radio and Alert, w/SAME Weather Alert SetupNoaa All Hazards/Weather Radio and Alert, w/SAME To Listen to the Weather ChannelsSpecific Area Message Encoding Same To Set the Same Weather AlertSame Event Code Alert Advanced Operation AdvancedProduct FeaturesOperationTo Switch to Channel 16 or Channel Channel 16/9Tri-Watch During Tri-Watch When Receiving an Incoming TransmissionSet Tri-Watch Channels To Program Memory Channels Advanced OperationMemory Channels To Clear Memory ChannelsTo Enter Memory Scan Scanning of Memory ChannelsFrom Standby mode, press the Memory Scan button Operation from the Microphone User Mmsi Number Digital Select Calling DSC ProductSetup FeaturesDigital Select Calling DSC Setup To Enter an Mmsi NumberTransferring a Radio to a Different Vessel To View the Programmed Mmsi Number at Any TimeTo Turn DSC Scanning On or Off DSC ScanningGroup Mmsi Number At the beginningTo Enter a Group Mmsi Number Enter the Setup menu and scroll to GRP Mmsi menuPosition Request Reply Type Will be entered automaticallyIndividual Directory Sending Distress Calls Digital Select Calling DSC ProductOperationFeaturesDigital Select Calling DSC Operation To Send a DSC Distress Call8187-F80-Operation-8MMBF75-Operation-8 12/29/06 904 AM Abort the Distress Call ProcessWhen a Distress Call is Received Receiving Distress CallsSending an All Ships Call Regarding Distress Relay CallsReceiving Distress Relay Calls To Send an All Ships CallWhen an All Ships Call is Heard Receiving an All Ships CallSending a Geographical Call When a Geographical Call SoundsPress any button to turn Off the alarm Receiving a Geographical CallSending an Individual Call To Send an Individual CallTo Receive an Individual Call Receiving an Individual CallSending a Group Call Press the Talk button and greet the callerTo Receive a Group Call Receiving a Group CallSending a Position Request To Request the Position of Another StationReceiving a PositionIf You Receive a Position If You Choose to Reply with Your Position When the Radio is in the Manual Reply ModeReceiving a Position Request If You Choose Not to ReplyReceiving a Position Send To Exit From the Position Send ModeSending a Position Send To Send a Position Send MessageCall Log and Distress Log To Review Log Messages Received While in DSC Standby ModeTo Clear Messages From The Log Memory No display on LCD when Improper power MaintenanceTroubleshooting Readjust volumeSpecifications SpecificationsFor Products Purchased in the U.S.A WarrantyProduct Featuresand TrademarkExclusions This limited warranty does not apply For Products Purchased Outside the U.S.AProduct ServiceFeatures Send the entire productFlush Mount Template / Plantilla para montaje empotrado Precaución