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Archive for the Sailing Instruments Calibration Category

DeWiggler

DeWiggler

DeWiggler™ is an automated calibration tool The most important mission of an instrument system is correctly reporting wind direction (see Importance of true wind). If lifts or headers occur every time you tack or gibe, there is a problem with your instrument calibration. DeWiggler is the solution

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Sailing with Remote Coach

Sailing with Remote Coach

Remote Coach™ Remote Coach, when enabled by you, extends your connectivity off the boat to allow various experts access to your data in real-time. Experts are available for troubleshooting your system, remote setup, updating software and calibration. This technology allows you real-time access to sailing experts. Troubleshooting of your

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Measuring Wind Direction: What is Upwash?

Measuring Wind Direction: What is Upwash?

Here’s a term that is bandied about in measuring Wind Direction, but is commonly misunderstood: upwash. Many people think they understand what it is, but are wrong by 90 degrees. What do I mean by that? Most people hear the term upwash and take it for face

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Sailing Instrument Calibration

Sailing Instrument Calibration

Calibration makes your instruments more accurate and useful Sailing instrument calibration systems is necessary to make displayed information correct and useful. Instrument systems use sensors to measure primary environmental factors (boatspeed, wind, heading, position, heel and others), possibly combine them, and display the results. Calibrations adjust for

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The Politics of Calibration

The story of one boat having calibration problems was recently relayed to us. The crew was having difficulty obtaining reasonable numbers from their instrument system, so they began to “calibrate” the instruments. I used quotes because what they were doing was not actually calibration, but fiddling and

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First Lessons from DeWiggler

We’re entering the second year of public release of DeWiggler, and there is now enough data to make some general conclusions. Probably the single most important conclusion gleaned from the data analysis concerns the compass. The first half of the DeWiggler tests calibrate the boat speed (Vs)

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Maretron Compass Calibration

Our current favorite compass for use with the Ockam system is the Maretron SSC200. It is a 3-axis turn-stabilized electronic compass, and is relatively inexpensive. It is also widely available, so it can be obtained fairly easily (including through our Web Store). It can also be calibrated

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Calibrating with DeWiggler

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Tweaking AutoCal

Did you ever notice how some boats seem to have strange instrument readings only in certain conditions? Like having boatspeed be off by a half knot only when going between 4 and 6 knots, or the wind readings being off only at certain apparent wind angles? A

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