Humminbird VHF255SW manual Mount the microphone onto the bracket

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CAUTION: If you cannot reach behind the mounting surface to attach the nuts to the bolts, use the supplied self-tapping screws to fasten the bracket instead.

2.Set the bracket aside, then drill two mounting holes at the marked locations. If you plan to use the supplied mounting screws, make sure the drill bit you use is slightly smaller than the screw diameter of the mounting screw. If you plan to use the supplied mounting nuts and bolts, make sure the drill bit you use is slightly larger than the diameter of the supplied bolt. Next, align the mounting bracket with the drilled holes, making sure that it is oriented correctly.

3a. Insert each of the two mounting screws and secure the bracket to the mounting surface.

or

3b. Use the supplied bolts, spring washers, plain washers and nuts to secure the bracket to the mounting surface.

4.Insert the two mounting screws and fasten them with a suitable screwdriver or nut driver, making sure not to overtighten the screws.

5. Mount the microphone onto the bracket.

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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 selectedWatt VHF255S Fixed Mount radio base station Installation OverviewParts Supplied 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 Install the Microphone Mounting Bracket Connected to the radio before powering up the radioAttach the Antenna Cable to 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 Adjusting Squelch Selecting a ChannelTo select a channel Selecting HIGH/LOW Power Transmitting and ReceivingSelecting U.S./INTERNATIONAL/CANADIAN Bands Selecting a Weather Channel and Turning on Weather Alert Accessing the 16/9 Priority Channels ADDING/DELETING Channels TO/FROM MemoryTo delete channels from memory Scanning Accessing Channels Saved to MemoryUsing the Transmit TIME-OUT Timer TOT To access saved channelsTo 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 callReceiving Calls To receive a DSC callTo receive a Distress call To receive an All Ships call To receive a Distress Relay callTo receive a Geographic Area call To receive a Group callCall data is stored in the Call Log To receive an Individual callResetting the Radio Position IndicationTo acknowledge a missed call 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 Radio Setup Channel Name Display and Editing To display an existing channel nameTo edit an existing channel name entry 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 ReplyMaintenance TroubleshootingVHF255S Doesnt Power UP Transmitting is Impossible Or High Power CAN’T be Selected No Sound from the SpeakerLOW Receiver Sensitivity Year Limited Warranty Humminbird Service Policy Returning Your Unit for Service Specifications TransmitterReceiver Use Marine ChannelsMarine Channels 157.350 161.950 International Marine Channels MHz 156.125 160.725 Canadian Marine Channels Commercial Fishing Only These menu choices appear when you press the DSC/MENU key Menu TreeDSC Call Type List 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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