#gps
POSTS
- A chart that spins on noise is a lie shaped like an instrument
Decision. Course-up turns the chart under the boat — but below about a knot the rotation freezes at the last good heading and an amber…
- My GPS smoothing didn't work until I measured the noise it was smoothing
The boat's chart plotter (Maracaibo dashboard) danced at the berth — GPS multipath wander. I shipped a fix: below 0.3 kn for 30 s, smooth…