There is such a thing as too much choice in electronic navigation. In the best possible world I would have have a continuous, detailed history of the boats position from launch to haulout, readily accessible on all my various devices, but I could spend an enormous amount of time, money, and electrical power doing that and it's way more than I need for practical navigation and documentation.
For safe operation, I need to be able to:
For safe operation, I need to be able to:
- see where I am on a chart and which direction I'm going
- monitor position at anchor and generate an alarm if it changes too much
- know how far I am from my immediate waypoint
- know how far I am from today's planned destination waypoint
- ETA is convenient, but I can divide by speed in my head
- show a pretty map of where I am now
- with a track of where I went today
- or a track of where I went this week
- or a track of where I went this summer
A new app for called Drag Queen (really!) seems to provide a pretty comprehensive anchor alarm, with a better UI than my old GPS 76 and an audio alarm siren much more likely to wake me.
New C-Map NT+ charts for the Navman should provide good coverage at the helm in Lakes Huron and Michigan.
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