Cobra Electronics MR F75-D owner manual Standby And Receive, Squelch, From Standby Mode, You Can

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Operating Your Radio

On-Off Power/

Volume Knob or Volume Up/Down Buttons

Getting Started

To Increase The Volume You Can Choose One Of The Following:

Getting Started

Operating Your Radio

Standby And Receive

Standby mode is the usual mode for the radio whenever it is turned On.

Squelch

a. Turn the On-Off Power/Volume knob clockwise.

b. Press and release the Volume Up button on the microphone/speaker.

To Decrease The Volume You Can

Choose One Of The Following:

a. Turn the On-Off Power/Volume knob counter-clockwise.

b. Press and release the Volume Down button on the microphone/speaker.

When adjusting the volume while using the microphone/ speaker, press and hold the Volume Up or Volume Down buttons for rapid advance.

Standby Mode

Up/Down Buttons

From Standby Mode, You Can:

■Change your radio’s settings using set-up routines.

■Receive messages on the current channel as well as DSC messages.

■Receive NOAA alerts if Weather Alert mode is turned On.

■Switch to Transmit mode using the Talk button.

While the radio is in Standby mode, the Receive mode is entered whenever a strong enough signal to break squelch is sent to the radio. You will hear the message through whichever speakers are connected to the radio.

To Change The Channel You Are Listening To, You Can Choose One Of The Following:

Squelch control filters weak signals and radio frequency noise so that you can more clearly hear the signals you want. You can think of it as a variable barrier that blocks what you don’t want to hear.

Squelch Knob

To Squelch Your Radio:

1.With the Squelch knob turned fully counter-clockwise, turn the On-Off/Volumeknob clockwise until you hear a hissing (noise) sound.

Channel 16/9 Button

a. Press the Up/Down buttons. This will take you to the next higher or lower VHF channel. For rapid advance, press and hold the Up or Down button.

b. Press the Channel 16/9 button. This will take

you to Channel 16 with one (1) press and to Channel 9 with a second press. Additional presses will toggle between Channels 16 and 9.

Turn Till Hissing Sound Starts

Turn Till Hissing Sound Stops

Lower Bearier

NOTE

The Volume Up/Down buttons on the microphone/ speaker cannot be used in the squelch process. You must use the On-Off Power/Volume knob.

2.Turn the Squelch knob clockwise until the hissing sound stops.

Turning the Squelch knob further clockwise (higher bearier) will filter weak and medium strength signals until only

the strongest signal can get through at the highest squelch setting.

To Receive Weaker Signals:

1.Turn the Squelch knob counterclockwise (lower bearier).

If the squelch is set so that you can hear a continuous hissing sound, the memory scan and tri-watch functions will be blocked.

c. Press the Weather/UIC button. This will toggle the radio between Standby mode and Weather Radio mode. When in Weather Radio mode, the Up/Down buttons will change the weather channel.

Weather/UIC Button

26 English

Nothing Comes Close to a Cobra® 27

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Contents Our Thanks To You Customer Assistance Class-D Fixed Mount VHF RadioCustomer Assistance For Assistance In The U.S.A For Assistance Outside The U.S.ATransceiver Controls Indicators And Connections Microphone/Speaker Product FeaturesProduct Features Microphone/Speaker With Auxiliary ControlsTable Of Contents Important Safety Information Important Safety InformationSafety Training Information Always use only Cobra authorized accessoriesRecommendations For Marine Communication FCC InformationVHF Marine Radio Procedures Voice CallingMaritime Mobile Service Identity Mmsi Maritime Mobile Service Identity MmsiDigital Selective Calling DSC Digital Selective Calling DSCRadiotelephone Calls Emergency Messages Distress ProcedureRadiotelephone Calls Marine Distress Procedure Marine Distress Procedure DSCTell where you are SayAccessories Order Info Included In This PackageFor Credit Card Orders To Order OnlineMounting And Powering The Radio Mounting Powering The RadioMounting To Connect To a Power Source Electrical Power ConnectionLength Wire Gauge Installation Requirements Antenna Requirements Attachment Antenna Requirements And Attachment Safe Maximum Permissible Exposure MPE RadiusExternal Devices Connections External Devices And ConnectionsTones And Alarms Power On-OffVolume Getting StartedTo Decrease The Volume You Can Choose One Of The Following To Receive Weaker SignalsStandby And Receive SquelchSet-Up Routines Settings Menu Set-Up RoutinesLCD Backlight LCD ContrastConfirmation tone setting on or OFF Confirmation ToneA./International/Canada Channel Maps Time OffsetTransmit Power Output Voice TransmissionVoice Transmission ChannelsWeather Radio And Alert Public AddressNoaa All Hazards/Weather Radio And Alert Weather Alert Set-UpWeather Alert Signal Advanced OperationAdvanced Operation Tri-WatchMemory Channels Memory ScanDigital Select Calling DSC Setup DSC Set-UpUser Mmsi Number If You Incorrectly Enter Your Mmsi NumberGroup Mmsi Number If You Transfer Your Radio To a Different VesselDSC Scanning Position Request Reply Type Individual DirectoryTo Set The Position Request Reply Type To Enter Or Edit Names And Mmsi Numbers In The DirectoryDSC Operation Digital Select Calling DSC OperationSending Distress Calls Receiving Distress Calls Sending An All Ships CallsRegarding Distress Relay Calls Receiving Distress Relay CallsReceiving An All Ships Call Sending An Individual CallSending a Geographical Call Receiving a Geographical CallReceiving An Individual Call Receiving a Group CallSending a Position Request Sending a Group CallTo Exit The Position Request Mode If The Station You Called Chose Not To ReplyIf You Receive a Position If The Station You Called Cannot Send Its PositionSending a Position Send Receiving a Position RequestReceiving a Position Send Call Log and Distress Log To Clear Messages From The Call Log MemoryMaintenance Troubleshooting SpecificationsMaintenance TroubleshootingEnglish Nothing Comes Close to a Cobra VHF Marine Channel Assignments 01A 03A04A 05A18A 19A20A 21A25B 28B61A 62A78A 79A80A 81AWeather Channel Assignments VHF Marine Channel Assignments EnglishWarranty World City Time ZonesWorld City Time Zones For Products Purchased In the U.S.AProduct Service Flush Mount Template / Plantilla para montaje empotrado
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