Chittum-LM Beavertail B2 Sold Aug 2021
Garmin and Simrad use GPX as the "language" for waypoints. I use a garmin presently but I've got a boat on order that will be coming with a Simrad. I Looked into this before committing to the Simrad. In the past I have created waypoints on google earth then converted the KML file (language of Google earth) to GPX then uploaded to Garmin. With the Simrad platinum plus having the satellite map capability I may not need to use google earth. I will find out in a few months. Every so often I update an SD card with GPX files to keep my waypoints as a backup for newly added waypoints in case I loose the stored GPS waypoints. Hope that makes sense. Garmin now uses basecamp app for mac.