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  1. Why doesn’t the SSC200 compass transmit true heading? The SSC200 is a magnetic compass, which means that it measures the direction of Earth's magnetic field relative to the magnetic poles (magnetic heading). This is different than a gyrocompass, which measures heading relative to the Earth's r... Read More
  2. I navigate using magnetic heading and not true heading; how do I use the SSC200 compass and Maretron’s DSM150, DSM200, or DSM250 display to view my heading in magnetic? The SSC200 compass outputs heading information in magnetic format, so you just need to properly configure the DSM150, DSM200, or DSM250 to display heading in magnetic. To view magnetic heading on the DSM150, DSM200, or DSM250, do the following:Enter ... Read More
  3. I navigate using magnetic heading and not true heading; how do I use the SSC200 compass and N2KView software to view my heading in magnetic? The SSC200 compass outputs heading information in magnetic format, so you need to properly configure N2KView to display heading in magnetic. To view magnetic heading within N2KView, click on the "Units Setup" tab, and select "Magnetic from the "Headi... Read More
  4. I navigate using true heading and not magnetic heading; how do I use the SSC200 compass and N2KView software to view my heading in true? The SSC200 compass outputs heading information in magnetic form and before N2KView can display true heading, the variation must be known. One source of variation is the Maretron GPS antenna/receiver (GPS200). If an SSC200 and GPS200 are connected tog... Read More
  5. How do I display the SSC200 magnetic heading on Maretron’s DSM150, DSM200, or DSM250 display? You display the SSC200 magnetic heading information 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 magnetic h... Read More
  6. Why does the heading coming from the SSC200 appear to be in error? The SSC200 measures the Earth's magnetic field and before it will provide an accurate heading, it must understand how the Earth's magnetic field is affected (or deviates from normal) due to the ferrous metals found on the vessel. Fortunatel... Read More
  7. What is the maximum rate at which the SSC200 will transmit heading from the NMEA 2000 port? The SSC200 transmits heading 10 times per second via the NMEA 2000 port.... Read More
  8. What is the maximum rate at which the SSC200 will transmit heading from the NMEA 0183 port? By default, the SSC200 transmits heading from the NMEA 0183 interface ten times per second. This can be changed to 40 times per second in one of two ways: 1) using Maretron's DSM150, DSM200, or DSM250 display (please see the respective display&#... Read More
  9. Why doesn’t Maretron offer a WSO100 with a built in GPS or compass? The WSO100 is generally placed at the highest point on the vessel so that it is not obstructed from the wind. Unfortunately, the highest point on a vessel is often the worst possible placement for a GPS or compass. Take for example a GPS mounted at t... Read More
  10. 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
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