[Editor’s note]. This article is a sidebar to the article “Networking the Old and New,” that appeared in the January 2019 issue. Use our search bar to find additional articles on onboard networking.
The NMEA 0183 has two different communication (baud) rates for-4800 baud and the faster 38400 baud (also known as NMEA 0183-HS). You have to match the baud rate of both devices for communication to occur. AIS will always use the faster rate. Once the speeds correlated on our test boat, the radio presented targets on its one-inch display. Sitting at the dock it was apparent that info below decks was useless.
- Standard Horizons GX2150 Matrix AIS+ has internal GPS which allows it to track position and deliver AIS data, but the screen is too small to be of much use in rough conditions.
- Images 2 and 3 are from the instruments on the test boat (yes she was going slow). The Raymarine autopilot is getting navigation information (bearing to waypoint) from the Garmin
- GPS position data is generated by the Garmin chartplotter/GPSmap 440s.
This is the 1 inch screen of PS articles.
Is this to be continued?
How about telling us something that matters.
Title mention NMEA2000. What about it? low speed or high speed?
Just subscribed to Practical-Sailor and found this ‘article’ and agree with the comments so far. Title implies much more than is addressed. And even what is written does leave the reader guessing whether something went wrong with the hit ‘publish’ button. Hope this is not a trend…..
This article is a short sidebar to the main article “Networking the Old and New,” (https://www.practical-sailor.com/marine-electronics/networking-the-old-and-new) that appeared in the January 2020 issue. The entire issue, including additional images to illustrate the topic, can be downloaded here https://www.practical-sailor.com/subscriber-only/download-the-full-2020-january-issue. Additional Practical Sailor reports on onboard networking can be found using the search bar at the top.