Humminbird DC 25 Operation Manual Download | Manualshive

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Summary of Contents for DC 25

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Page 2: ...r toll free Customer Support Hotline OBTAINING APPROPRIATE LICENSES Before operating your Humminbird VHF radio you must apply for the appropriate licenses For your convenience the product box includes license applications that you can fill out and mail as instructed on each application Ship Station License Any craft equipped with a VHF FM transceiver such as your Humminbird VHF radio is considered...

Page 3: ...s generators and other electronic instruments Do not mount vertically water may collect in the speaker grille and distort sound Interference may also be created by the alternator bilge pump and other devices If this causes a problem connect the radio to an alternative power source When mounting your antenna refer to the instructions included with it to determine the best antenna location The anten...

Page 4: ...ing the Microphone Holder Finally install the microphone holder near the VHF radio on any vertical surface 1 Position the microphone holder near the VHF radio on any vertical surface 2 Mark 1 16 starting holes for the mounting screws 3 Set the microphone mount aside and drill the starting holes as marked 4 Mount the microphone holder using the screws supplied with your VHF radio 5 Place the microp...

Page 5: ...crophone and keep it pressed as you look at the LCD screen If the T transmission symbol blinks at the left of the channel indicator the unit is properly powered up and capable of transmission Complete information on operating the Humminbird VHF radio is provided later in this manual First spend a few minutes with the following pages to acquaint yourself with the radio controls HUMMINBIRD VHF RADIO...

Page 6: ...e channels have a specific purpose be sure to see the Table of Marine Channels that appears later in this manual SCAN scans all channels for signals in the selected frequency band Pressing SCAN causes the radio to begin scanning from the lowest channel and to lock in on the first channel for which a signal is detected When a signal is no longer present on that channel scanning resumes There are se...

Page 7: ...n the LCD screen Note that the Weather channels are receive only pressing the microphone button when you are in this frequency band turns off the speaker but transmits nothing To return to the USA or International band press WX again USA INT selects the USA or International frequency band which each provide access to Channels 01 through 88 see Table of Marine Channels later in this manual Use the ...

Page 8: ...y or to an authorized service center THE LCD SCREEN The Humminbird VHF radio s LCD screen keeps you informed of the current state of the communications set up HI or LO indicates whether you are set to transmit at the maximum legal wattage for the current channel or at the lower 1 watt of power The T transmission symbol blinks when you are transmitting that is when the microphone button is depresse...

Page 9: ...ssarily interfering with other radios in the immediate area if you begin to transmit If you are in open water skip this step to remain in HI mode which allows transmission at the maximum legal wattage for the current channel You can now proceed with any of the operation described in the following pages Note that you should typically have the VHF radio ready to receive on Channel 16 either by leavi...

Page 10: ...calls to no more than 30 seconds and do not repeat a call for more than two minutes Return to Channel 16 when the call is finished or use the dual watch function to monitor Channel 16 while you receive on another channel For instructions on distress calls see Placing an Emergency Call later in this manual Answering a Call Calls from other craft should come in only on Channel 16 When you are set to...

Page 11: ...a normal voice level say Mayday Mayday Mayday Then give your call sign if you have no call sign identify yourself by vessel name and license name State your location including any landmarks or navigational aids State the nature of your emergency such as injuries or the condition of your craft and identify the assistance you need Finally state that you will remain on Channel 16 repeat your craft na...

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