KNM was fat fingers on my part.... should be NM...it's not a straight shot, from Tampa Bay to
Key West is 183NM, but channel 5 is not in a straight line from Tampa Bay, one must curve around the capes, and once through Everglades National Park
head NE to the south side of Plantation Key.
Also, the channel from East Cape to Plantation Key is listed on my chart as 8'