heading sensor on a Garmin setup Q

[vas]

a bit confused so bear with me please.

Having a typical Garmin only setup with a plotter, gps antenna, depth et al sensors AND a Radar gives you a set of tools to navigate bar the ability to know where the boat is heading in order to match radar with chartography, and in order to show the boat looking the right direction when on it's mooring or anchored, correct?
At least I think so.

So now, add a garmin autopilot to the above all garmin setup
Now you have a course computer unit which in my mind IS a heading sensor.
All that networked via NMEA2K.

Does that mean that both radar and AIS600 transceiver will get the right sentences in order to align screens (the radar) and get the orientation of the boat right (AIS and gpsmap plotter)?
Am I right, or do I need another dedicated heading sensor for the non autopilot kit?

thoroughly confused!

cheers

V.

 

[Keith-i]

You are on the right lines. I have two Garmin plotters which receive heading sensor data from my Raymarine autopilot fluxgate. You get a heading line on your plotter screen and the boat points in the correct direction on screen.

 

[Robin]

We have a Raymarine autopilot with it's own sensor and a full Garmin N2K network with a Garmin heading sensor that aligns the radar overlay to ships head and plotter and provides data for the MARPA for collision avoidance information. Our Garmin stuff talks with the Raymarine, but via NMEA0183 so that selcted nav data stuff gets displayed/repeated on the pilot controlhead screens and the pilot can be set to follow a route or the wind angle.

 

[Paul&Ness]

I'll need to check which Raymarine autopilot I have (never been used) to see if it has NMEA. I Also have two Garmin chart plotters and Garmin HD Radar and have been put off by the price the Garmin Fluxgate Compass/Heading Sensor as I would like to have MARPA capability. This may be a silly question but how do you link NMEA0183 to a NMEA2K network to make use of the Raymarine Fluxgate compass. My Garmin 1020s spec says that its both NMEA0183 & 2K compatible so does this mean that it can manage both inputs?

 

[Robin]

I'll need to check which Raymarine autopilot I have (never been used) to see if it has NMEA. I Also have two Garmin chart plotters and Garmin HD Radar and have been put off by the price the Garmin Fluxgate Compass/Heading Sensor as I would like to have MARPA capability. This may be a silly question but how do you link NMEA0183 to a NMEA2K network to make use of the Raymarine Fluxgate compass. My Garmin 1020s spec says that its both NMEA0183 & 2K compatible so does this mean that it can manage both inputs?

I had mine installed professionally and the autopilot later had to be replaced with a newer one, still NMEA0183. In our case the Raymarine pilot is listening to NMEA0183 put out by the Garmin 4010 MFD which is connected to the radar scanner, Garmin heading sensor, AIS transceiver, boat speed, Wind speed/direction and depth transducers/ functions via the N2K network. The Garmin supplies position data also to the Standard Horizon DSC VHF, but via NMEA0183. I don't think any data from the Raymarine pilot or it's separate heading sensor gets sent to the Garmin net, so one way traffic only perhaps, at least in our setup.

 

[vas]

This may be a silly question but how do you link NMEA0183 to a NMEA2K network to make use of the Raymarine Fluxgate compass. My Garmin 1020s spec says that its both NMEA0183 & 2K compatible so does this mean that it can manage both inputs?

Yep, BUT:

A. what goes into the 1020S from the NMEA0183 will remain there (wont be broadcasted to other N2K devices (or other N0183 ones for that mater...), so if you have a second plotter on your f/b that wont know a thing
B. you got to make sure that the raymarine A/P DOES broadcast the right sentences on its NMEA0183 output
C. you similarly got to make sure that the 1020S does understand and is able to use the sentences broadcasted on B.

so simple

N2K makes things so much easier in this respect...

Seems that what I'm asking works. My only concern on whether the Garmin GHP10 A/P system does output on the bus the right PGNs (CCU connects to both the ECU and the N2K bus) but if it works for Raymarine I doubt the Garmin one keeps the data to itself...

cheers

V.

 

[Paul&Ness]

Thanks. I will have to do some more investigating

 

[Keith-i]

My Raymarine A/P is some years old now but certainly sends out 0183 data which is all happily read by the Garmin 7012. I don't think it broadcasts all available A/P data but certainly the basics.

As for getting the data to a second MFD on the flybridge, I have two Garmin plotters connected via their proprietary marine network (ethernet) cable and the heading data is certainly sent over it.