I live near the ocean on the Midcoast of Maine. I want to hear the maritime frequencies. I set up a FL called Boating and followed the instructions to bring the Maritime (USA) frequencies into the list. But when I go to select the service types on my SDS100 I cannot find any Maritime service type, and therefore my scanner won't pick up the local boat traffic. What am I doing wrong? (FYI - to see if the scanner will pick up the boats, I set my zip code in and turned on the national database, with a range of 10 miles. It works that way. But I want to set up a FL to hear just the boats. Why won't the service type appear on the list? Thanks for any help. Also, I have a portable marine radio that works and can transmit on a marine freq to check my radio). Any suggestions? Thank you