and speed instruments
Mn 100-2 wireless with a hull
receiver and transmitter. As they are NMEA 0183
I use an Actisense NGW1 to pass the data into my NMEA 2000
network where the data is successfully read by the plotter. The magnetic heading is supplied from a sensor
directly connected to the nmea 2000
backbone. This is primarily for the radar
but the value is seen and correctly displayed on the chart plotter and by the wind instruments
via the NGW1. I use a DigitalYacht Navlink 2 to supply the nmea
2000 data as 0183 to tablets and signal k/opencpn on the Raspberry Pi.
Now for the strange part. With the wind etc instruments turned off, the magnetic heading is seen by the Navlink 2 as $IIHDG,47.8,0.0,E,1.4,E*77 and is transmitted correctly to everything relying on the Navlink via the Wi-Fi router. As soon as the wind instruments are turned on this data is no longer transmitted and everything depending on the Navlink 2 displays only the last data, frozen. All equipment
on the NMEA
2000 backbone sees the data correctly. There are no filters switched on the Navlink 2. One downside of this is that my own boat
displays on opencpn
as heading in a different direction to the COG. Iíve asked DigitalYacht if they can help given that the problem is downstream of their device but they havenít replied.
Can anyone throw any light on why this is happening and how it may be remedied please.