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  1. Why is the GPS100 Course Over Ground (COG) erratic at low speeds? The GPS100 computes Course Over Ground (COG) by observing prior fixes or positions and extrapolating the direction of travel from those fixes. If the vessel is not moving, then the GPS100 can not extrapolate the direction of travel and the readings b... Read More
  2. How do I display the GPS Course Over Ground (COG) using Maretron’s DSM150 or DSM250 display? You display the GPS100 Course Over Ground (COG) 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 CO... Read More
  3. What sensors does Maretron recommend for basic navigation? A standard Maretron NMEA2000 navigation sensor network consists of the following components:Compass: SSC200GPS: GPS200Depth Speed Water: DST110Weather: WSO100Display: DSM150System Capabilities:Wind ApparentSpeed over groundCourse over groundSpeed thr... Read More
  4. What firmware changes have taken place on the Maretron DSM250?  You can update the device with Maretron's N2KAnalyzer software tool. (2018-01-24):Correctly display invalid data in LAT/LON screen (4405)Correctly display PGN 129029 data in LAT/LON screen (4418)Fixed crashing issue in control mode whil... Read More
  5. What are the basic configurable parameters for a J2K100 and how do I configure them using a DSM250? What are the basicconfiguration items of a J2K100 and how do I perform them using a DSM250? The J2K100 is a bridgebetween two different digital networks. One side of the bridge is connected toa J1939 network and the other side of the bridge is c... Read More
  6. What messages (or PGNs) does the GPS100 transmit? The GPS100 transmits the following messages (or PGNs):PGN 126992 - System Time (Fields: 1-SID, 2-Time Source)PGN 128259 - Speed (Fields: 1-SID, 2-Speed Water Referenced, 3- Speed Ground Referenced, 4-Speed Water Referenced Type)PGN 129025 - Position ... Read More
  7. What information does the GPS100 provide? The GPS100 provides the following information:latitude and longitudetime and dateCourse Over Ground (COG)Speed Over Ground (SOG)magnetic variationsatellite informationGiven this information from the GPS100, Maretron display products (DSM150, DSM200, ... Read More
  8. What is a GPS100? The GPS100 is a 12 channel global positioning system antenna and receiver with Satellite Based Augmentation System (SBAS) capabilities. This includes SBAS for North America (WAAS), Europe (EGNOS), and Asia (MSAS). The GPS100 provides time and date, p... Read More
  9. Which NMEA 0183 sentences does the SSC200 receive? The SSC200 receives the following NMEA0183 sentences or messages:RMC - Recommended Minimum Specific GNSS DataVTG - Course Over Ground and Ground SpeedPMAREXE - Maretron Proprietary Execute SentencePMARSETPX - Maretron Proprietary Set Period Sentence... Read More
  10. 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
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