Thanks to Monica and Latitude 38‘s online version, ‘Lectronic Latitude, for publishing The Resourceful Sailor Says GPS Is Not Guaranteed Positioning System on October 23, 2024. It conveys an experience in the Port Townsend area regarding GPS and a new Standard Horizon VHF radio installed on Sampaguita, a 1985 Flicka 20 sailboat. Click the link below to be directed to the full article. Thanks for checking it out. https://www.latitude38.com/lectronic/resourceful-sailor-gps-not-guaranteed-positioning-system/