Besides the kicense difference and the frequency range (assuming HF means High Freq.), what are the practical differences in the two Marine radios?<br><br>I received a reply fron the national park service regarding emergency communications on Isle Royal. His suggustion was a marine radio to contact nearby boats who would then relay the message to the rangers. Besides recreational boaters, there are several ferries plying between the island and the mainland. Plus there are tankers in the shipping lanes, which I have no idea on how often or how far away they are from the island.<br><br>I'd also be interested in advice on specific models, keeping in mind that it's a backpacking trip so size and weight are an import canosideration.<br>Thanks.