Humminbird VHF255SW manual To make a Group call, Group Mmsi

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To make an All Ships call:

1.From the DSC Call Type List, select ALL SHIPS. The following choices will be displayed: Urgency, Safety, and Routine.

2.Select one of those three choices to see another submenu that gives you the choice to Send or Cancel the All Ships call type. Press the CH/Enter knob again to send the call type selected, or press the 16/9 key to quit.

3.Once the call is sent, the text area of the LCD will momentarily show the Calling All Ships message. The radio will then return to normal VHF operation on Channel 16 with high power, except ROUTINE. Press PTT to talk.

To make a Group call:

This feature allows you to contact a group of specific vessels using DSC and to switch to a desired channel automatically. Before sending a GROUP call, you must set the

GROUP MMSI.

1.From the DSC Call Type List, select GROUP. The names of your groups will be displayed.

2.Select the group that you want to call, then select the channel Press the CH/ENTER knob to send the group call. Once the call is sent, the Text area of the LCD will momentarily show the Calling group message.

3.Once the group call is sent, the radio will return to normal VHF with the designated channel. Press PTT to talk.

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Contents Operations Manual Thank YOU Operator Warnings Table of Contents Setup Menu Maintenance Troubleshooting HOW VHF Radio Works VHF255S IntroductionFeatures Overview Page To obtain an Mmsi assignment Maritime Mobile Service Identity MmsiGroup Mmsi VHF255S Controls Radio Base Station Front Page VHF255S Controls Radio Base Station Rear VHF255S Controls Microphone Handset 10 11 Whats on the DisplayDot Matrix Indicates special conditions or radio functions Indicates current channel selectedParts Supplied Installation OverviewRadio Base Station Watt VHF255S Fixed Mount radio base stationMicrophone handset Microphone HandsetCables Connections Overview Decide Where to Install the Radio Base Station Install the Radio Base Station Radio Base Station Mounting Screws Gimbal Knobs Bracket Dash Nuts Recessed mounting brackets Attach the Antenna Cable to the Radio Install the Microphone Mounting BracketConnected to the radio before powering up the radio Mount the microphone onto the bracket Attach a GPS Receiver OPTIONAL-PURCHASE Using Your VHF255S You will need to obtain an FCC license if Before YOU USE Your RadioTo turn on the radio To select a channel Adjusting SquelchSelecting a Channel Selecting U.S./INTERNATIONAL/CANADIAN Bands Selecting HIGH/LOW PowerTransmitting and Receiving Selecting a Weather Channel and Turning on Weather Alert To delete channels from memory Accessing the 16/9 Priority ChannelsADDING/DELETING Channels TO/FROM Memory Using the Transmit TIME-OUT Timer TOT Accessing Channels Saved to MemoryTo access saved channels ScanningTo activate scan modes Using the Watch Monitor Modes To select a DSC call type Digital Selective Calling DSCDSC Call Types Exit Quits the DSC Call Type menu modeGroup Mmsi To make a Group callOpen the red cover over the Distress key Making a Distress CallSay that you will be monitoring Channel Mayday Mayday MaydayMaking Individual Routine Calls 4a. If the call is acknowledged, press PTT to talk Press the CH/ENTER key to initiate the callTo receive a Distress call Receiving CallsTo receive a DSC call To receive an All Ships call To receive a Distress Relay callCall data is stored in the Call Log To receive a Group callTo receive an Individual call To receive a Geographic Area callTo acknowledge a missed call Resetting the RadioPosition Indication Distress 23’20.1234 N 100’15.1002 E 0810PM UTC Setup Menu Contact List To access the Setup MenuTo delete an entry from the Contact List LOCAL/DISTANT Backlight AdjustmentTo adjust the Contrast Contrast AdjustmentGPS/TIME Submenu GPS/TIME Submenu Manually Enter GPS Data GPS/TIME Settings Submenu Position Display ON/OFF GPS/TIME Submenu Settings SubmenuGPS/TIME Settings Submenu Time Offset Local Time GPS/TIME Settings Submenu Time Display ON/OFFGPS/TIME Settings Submenu Time Format Radio Setup Submenu To edit an existing channel name entry Radio Setup Channel Name Display and EditingTo display an existing channel name Radio Setup Ring Volume Adjustment Radio Setup Turning the Internal Speaker ON/OFF Radio Setup Beep Volume AdjustmentTo access the DSC Setup Submenu DSC Setup SubmenuDSC Setup Enter Your User Mmsi Group Mmsi To enter Group MMSIs DSC Setup Create and Manage Group MmsisTo delete a Group Mmsi To edit an existing Group Mmsi entryDSC Setup DSC Enable DSC Setup Individual ReplyDSC Setup Reset DSC Setup Position ReplyVHF255S Doesnt Power UP MaintenanceTroubleshooting LOW Receiver Sensitivity Transmitting is Impossible Or High Power CAN’T be SelectedNo Sound from the Speaker Year Limited Warranty Humminbird Service Policy Returning Your Unit for Service Receiver SpecificationsTransmitter Use Marine ChannelsMarine Channels 157.350 161.950 International Marine Channels MHz 156.125 160.725 Canadian Marine Channels Commercial Fishing Only DSC Call Type List These menu choices appear when you press the DSC/MENU keyMenu Tree Setup Menu Page Page Page Monday Friday 800 a.m. to 430 p.m. Central Standard Time Contact Humminbird
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VHF255S, VHF255SW specifications

The Humminbird VHF255SW is an advanced VHF marine radio designed for reliability and performance on the water. It is built for recreational boaters, offering a combination of essential features and cutting-edge technologies that enhance communication and navigation safety.

One of the standout features of the VHF255SW is its robust 25-watt output power, which provides extended range communication, allowing users to reach distant vessels and shore stations effectively. This high power output is crucial in emergency situations or when out on open water, ensuring that skippers can maintain contact when it matters most.

The radio is equipped with a built-in Class D Digital Selective Calling (DSC) capability, which is designed to enhance safety. This feature allows users to send a distress signal automatically to the coast guard and other vessels within the vicinity, including their location coordinates. The DSC functionality can be a lifesaver in case of an emergency, providing peace of mind for boaters.

Another key characteristic of the VHF255SW is its large, high-contrast LCD display, which is easy to read even in bright sunlight or at night. The multi-color display features adjustable backlighting, ensuring users can navigate and communicate effectively in various lighting conditions. The intuitive user interface simplifies operation, making it accessible for even the most novice boater.

Additionally, the Humminbird VHF255SW is equipped with a built-in GPS receiver, which allows for enhanced positioning and mapping capabilities. This integration enables users to access real-time information, making navigation smoother and more efficient. The unit also supports navigating to specific waypoints and routes, making it an excellent tool for fishing and exploring new waters.

The radio is designed with a rugged, waterproof housing that meets IPX7 standards, meaning it can withstand submersion in water for short periods. This durability ensures that it operates reliably in rough marine conditions. The Humminbird VHF255SW also features a noise-canceling microphone for clearer communication, minimizing background noise during transmissions.

In summary, the Humminbird VHF255SW blends important marine communication capabilities with advanced technology. Its combination of high output power, DSC functionality, built-in GPS, and a user-friendly interface makes it an invaluable asset for any boating enthusiast, ensuring safety and confidence on the water. With its rugged design and reliability, the VHF255SW is a smart choice for those who demand quality and performance from their marine radio.
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