hi Backtroller,
Marine band is in the VHF bands, and trans/rec are line of sight. more radios are set so when you turn them on, they come up on chan 16 which is your emergency chan. the longer your antenna the further you can trans/rec. most radios also have preset NOAA weather service channels that have continuous broadcasts of conditions and forecasts. most radios have 10 preset channels, and they are all different frequencies, so just about anywhere you are at least one of the WX channels will be able to be received, keep changing chans til you have one with the best reception. the WX chans are real helpful to monitor thunderstorms and update for severe weather watches. An FCC radio operators permit am sure is not required for use. the fishing info and sharing with friends on the water is fun, but safety is the biggest for me. enjoy your radio. Jack.