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  1. What is apparent wind? Apparent wind is what the Maretron WSO100 measures and doesn't necessarily reflect what the wind is truly doing. For example, if the vessel was moving at exactly 5 knots and the wind was blowing in the exact opposite direction at 5 knots, then t... Read More
  2. What is true wind? True wind is what the wind is truly doing and it can be computed from the measured apparent wind by subtracting the vessels speed. For example, if the vessel was moving at exactly 5 knots and the wind was blowing in the exact opposite direction at 5 ... Read More
  3. What is ground wind? Ground wind is the speed and direction of the wind referenced to a compass rose, which is different from apparent and true wind which are referenced to the bow of the boat. The apparent and true wind are interesting to see how the wind is affecting o... Read More
  4. What is the difference between true wind referenced to ground speed and true wind referenced to water speed? True wind is computed by subtracting the vessel speed from the apparent wind. The vessel speed is either referenced to the water (Speed Through Water (STW)) or the vessel speed is referenced to the ground (Speed Over Ground (SOG)). If the STW is subt... Read More
  5. Why is the WSO100 wind direction incorrectly displayed on my display? The WSO100 will not show the correct wind direction if it hasn't been aligned with the boat. You align the WSO100 in one of two ways:align the post (there are three posts attaching the top of the WSO100 to the base) closest to the humidity senso... Read More
  6. I see that Maretron’s DSM150, DSM200 and DSM250 displays have a WSO100 configuration setting called "Installation Offset Calibration..."; what is this? Maretron's DSM150, DSM200 and DSM250 displays have a WSO100 configuration setting called "Installation Offset Calibration...", which is used to electronically align the WSO100 with the vessel. Although the WSO100 can be mechanically aligned with... Read More
  7. How do I display the WSO100 true wind referenced to water speed on Maretron’s DSM150, DSM200, or DSM250 display? You display the WSO100 true wind on a DSM150, DSM200, or DSM250 in the following way:Enter menu mode, scroll to "Favorite Screen Setup..." and press < Enter >Scroll to the favorite screen where you would like to view the true wind and press  < Enter ... Read More
  8. How do I display the WSO100 true wind referenced to ground speed on Maretron’s DSM150, DSM200, or DSM250 display? You display the WSO100 true wind on a DSM150, DSM200, or DSM250 in the following way:Enter menu mode, scroll to "Favorite Screen Setup..." and press < Enter >Scroll to the favorite screen where you would like to view the true wind and press < Enter >... Read More
  9. Why is the SSC200 compass better than other marine compasses that use fluxgate technology? The SSC200 compass is better than other marine compasses that use fluxgate technology because there are no moving parts in the SSC200. Compasses using fluxgate technology have a coil floating in a liquid, and once this coil is set in motion (vessel i... Read More
  10. What messages (or PGNs) does the SSC200 transmit? The SSC200 compass transmits the following messages (or PGNs):PGN 127250 - Vessel Heading (Fields: 1-SID, 2-Heading Sensor Reading, 3-Magnetic Heading Correction 4- Magnetic Heading Correction 5-Heading Sensor Reference)PGN 127251 - Rate of Turn (Fie... Read More
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