Icom IC-M80 [17/27] User tips

Channel usage USER TIPS A channel selection system frequency usage has been inter nationally adapted for the marine VHF band Each frequency within the spectrum has been assigned a channel number for example 156 300MHz is Channel 6 Specific purposes have been assigned to each channel under this system i e inter ship between two vessels and ship to shore Geographical locations have specific channels assigned for use with the land telephone system Your selection of channels to be installed should be based on the type of contacts you plan to make within the areas you live or travel to The chart on the following pages will aid this selection Battery Each geographical area has specific channels assigned to it for use with the land telephone system Be sure to review the channels you should have installed in your radio to give you the capability to make the type of contacts you want in the area where you live or plan to travel Study the chart on the following pages showing the available channels and their usage Prevent battery drain during prolonged transmissions by keep ing the vessel s engine running Dead Spots Topography may prevent reception and or transmission from some locations Move to another location if you find a dead spot Routine Maintenance Your ICOM transceiver is designed to provide high quality performance for many years if cared for in a normal manner Each year you should have the following checked by a licensed technician to verify your unit s performance 1 Check antenna system 2 Verify transmitter frequency deviation and power output Battery voltage should be checked often Your electrical system should be checked if voltage is less than eleven volts or more than sixteen volts at the radio Note This transceiver uses a polarized filter over the channel and function display Sunglasses polarized opposite to the filter will cause the display to appear totally dark 16

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