User manual HUMMINBIRD VHF255SW OPERATIONS MANUAL

[. . . ] Humminbird® VHF255S / VHF255SW Operations Manual 531469-1_A THANK YOU! Thank you for choosing Humminbird®, America's #1 name in fishfinders. Humminbird® has built its reputation by designing and manufacturing top-quality, thoroughly reliable marine equipment. Your Humminbird® is designed for trouble-free use in even the harshest marine environment. In the unlikely event that your Humminbird® does require repairs, we offer an exclusive Service Policy - free of charge during the first three years after purchase, and available at a reasonable rate after the three-year warranty period expires. [. . . ] During the distress call sequence, the radio simultaneously watches Channel 70 (for a DSC acknowledgement) and Channel 16. When the distress call is acknowledged, the acoustic alert will stop and the radio will return to normal operation on Channel 16, with high transmit power set. If no acknowledgement is received, the unit continues to transmit the distress call at random intervals of 3. 5 to 4. 5 minutes until a response is received or the call is manually cancelled (by pressing the CANCEL/WX key for two seconds). In an emergency situation, when there is no DSC response, you should make manual MAYDAY distress calls between the automatic DSC calls as described in the next step. Make sure that the radio's transmit power is set to High by pressing the HI/LOW/MEM key if necessary. Press and hold the PTT key and speak slowly, clearly, and calmly into the microphone and communicate the following information: · MAYDAY MAYDAY MAYDAY. · This is [name of your vessel, spoken three times and your call sign or boat registration number, spoken once]. · Repeat MAYDAY and [your ship's name], spoken once. · Describe where you are, providing latitude or longitude, or by bearing (true or magnetic, state which) and any information such as distance to nearby landmarks. Include any information on vessel's course, speed and destination. · Describe the nature of your distress (FIRE, FLOODING, COLLISION, GROUNDING, LISTING, SINKING, ADRIFT, ABANDONING, PIRACY, MANOVERBD). · Describe the kind of assistance required. · Provide the number of people onboard. · Provide any additional information that may facilitate your rescue, such as the current condition of your vessel, your vessel's size, color, hull type, number of people onboard needing medical attention. · Say that you will be monitoring Channel 16. · End your distress message by saying "This is [your ship's name/call sign] OVER. " 42 10. Release the PTT key and listen for a response. If you do not get a response, repeat step 9 until you do. If you must abandon ship without receiving a response, and you have time, go back to step 1, and initiate an automatic distress call that will broadcast the ABANDONING message. 16. MAKING INDIVIDUAL ROUTINE CALLS You can make an individual call, either to a ship or to a coast station. From the DSC Call Type List, select NEW CALL The New Call submenu will be displayed, and the arrow will point to MANUAL. Press the CH/ENTER knob again to display the ENTER MMSI screen. [. . . ] Intership, Port Operations, Ship Movement. Intership, Port Operations, Ship Movement. Intership, Port Operations, Ship Movement. Public Correspondence, Port Operations. 1. [. . . ]