Another NMEA0183 question thats probably been asked before !

superheat6k

superheat6k

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So I have a Raymarine/Autohelm ST50 Tridata sending (as Talker) Seatalk Log and Speed data as NMEA 0183 into my Garmin GPSMAP750 as listener.

I want to send data from the Garmin as talker to my Furuno Radar plotter repeater screen which can display various Nav data when in standby.

So will the Garmin re-transmit the NMEA 0183 data sentences received as well as those generated from within from its TX port ?
 
superheat6k said:
So I have a Raymarine/Autohelm ST50 Tridata sending (as Talker) Seatalk Log and Speed data as NMEA 0183 into my Garmin GPSMAP750 as listener.

I want to send data from the Garmin as talker to my Furuno Radar plotter repeater screen which can display various Nav data when in standby.

So will the Garmin re-transmit the NMEA 0183 data sentences received as well as those generated from within from its TX port ?
Click to expand...

Some chartplotters will do this but not all. It's time to read the manual unless someone knows that particular device. It's often called 'bridging', so look for that in the instructions. On my chartplotter bridging can be turned on or off. If your plotter won't bridge then you will need a NMEA-0183 multiplexer, which rumour has it will shortly be available for about £30. :)
 
AngusMcDoon said:
Some chartplotters will do this but not all. It's time to read the manual unless someone knows that particular device. It's often called 'bridging', so look for that in the instructions. On my chartplotter bridging can be turned on or off. If your plotter won't bridge then you will need a NMEA-0183 multiplexer, which rumour has it will shortly be available for about £30. :)
Click to expand...
Thanks. The Garmin Manual says it will 'bridge' NMEA 0183 data from any source to NMEA 2000, but doesn't mention if this will work as an NMEA0183 output. Time to suck it and see I suppose.

Let me know when your multiplexer is available.

The Raymarine Seatalk remote steering app is still going strong, in regular use and was tested today.
 
As you say you are using the ST50 data purely as talker and the Garmin and Furuno as listener. That means that you can simply connect the input wires from the Garmin and the Furuno in parallel together on the output from your ST50 data line. I'm not sure how you get from Seatalk to NMEA data, but I presume you have an interface box or a ST50 Multi instrument in between to handle that. With NMEA you normally can tie about 4 listeners to one talker.

Cheers,
Arno
 
The earlier Tridata ST50 has an NMEA0183 output as talker, and this already talks to the Garmin chartplotter. In turn I want the Garmin to talk to the Radar display with it own sentences plus the already converted sentences from the Tridata. I know you can only have one talker on an NMEA0183 line section, otherwise they will talk over each other.

I am going to try it and see what pops up on the radar repeater. If I can't see the Tridata data on the radar then I either live with it or fit a multiplexer I suppose. Not that big a deal as the data is available a few inches away anyway, on the tridata display, just getting a bit OCD at not having all the data boxes on the radar screen filled with something useful.

Thanks guys.
 
superheat6k said:
The earlier Tridata ST50 has an NMEA0183 output as talker, and this already talks to the Garmin chartplotter. In turn I want the Garmin to talk to the Radar display with it own sentences plus the already converted sentences from the Tridata. I know you can only have one talker on an NMEA0183 line section, otherwise they will talk over each other.

I am going to try it and see what pops up on the radar repeater. If I can't see the Tridata data on the radar then I either live with it or fit a multiplexer I suppose. Not that big a deal as the data is available a few inches away anyway, on the tridata display, just getting a bit OCD at not having all the data boxes on the radar screen filled with something useful.

Thanks guys.
Click to expand...

You can never have too much data or gizmos to show it. :)
 
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