Sharing Map Over NMEA?

A1an · 29 March 2022, 18:47

My new console will have twin Garmin plotters and will be connected over a N2k network. Will the plotters be able to share a G2 Vision card if I had a card in just one of the plotters?

Pikey Dave · 29 March 2022, 19:15

Quote:

Originally Posted by A1an

My new console will have twin Garmin plotters and will be connected over a N2k network. Will the plotters be able to share a G2 Vision card if I had a card in just one of the plotters?

You normally have to use a flavour of Ethernet between the plotters in addition to the N2k network. The N2k is a CAN network, low bandwidth for sharing simple data. Raymarine use Seatalk NG, I think Lowrance use a proprietary Ethernet cable. You can link 2 plotters simply with a cable between them, this allows you to share charts, sonar etc between the units. If you start adding black box radar/sonar etc. you need a router.
What models of plotter do you have?

A1an · 29 March 2022, 19:18

Quote:

Originally Posted by Pikey Dave

You normally have to use a flavour of Ethernet between the plotters in addition to the N2k network. The N2k is a CAN network, low bandwidth for sharing simple data. Raymarine use Seatalk NG, I think Lowrance use a proprietary Ethernet cable. You can link 2 plotters simply with a cable between them, this allows you to share charts, sonar etc between the units. If you start adding black box radar/sonar etc. you need a router.

Ethernet is the stumbling block, the second plotter doesn’t have an Ethernet port. hence my hoping that the info could be shared over nmea.

Pikey Dave · 29 March 2022, 19:20

Quote:

Originally Posted by A1an

Ethernet is the stumbling block, the second plotter doesn’t have an Ethernet port. hence my hoping that the info could be shared over nmea.

95% sure it can’t

A1an · 29 March 2022, 19:21

Quote:

Originally Posted by Pikey Dave

95% sure it can’t

I had a feeling that was the case. Not to worry, it’s the plotter on the wifes side so not that much of a problem.

GuyC · 29 March 2022, 19:28

Quote:

Originally Posted by A1an

I had a feeling that was the case. Not to worry, it’s the plotter on the wifes side so not that much of a problem.

If mine is anything to go by, you'd be better off trying to stream I'm a celebrity* over NMEA.

* or similar sh1te

Pikey Dave · 29 March 2022, 19:29

Quote:

Originally Posted by A1an

I had a feeling that was the case. Not to worry, it’s the plotter on the wifes side so not that much of a problem.

You could print & laminate this & stick it on the screen to keep her happy
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A1an · 29 March 2022, 19:33

Quote:

Originally Posted by Pikey Dave

You could print & laminate this & stick it on the screen to keep her happy
Attachment 140124

genius

A1an · 29 March 2022, 19:34

Quote:

Originally Posted by GuyC

If mine is anything to go by, you'd be better off trying to stream I'm a celebrity* over NMEA.

* or similar sh1te

what’s the issue? I found nmea to be pretty reliable

Pikey Dave · 29 March 2022, 19:45

Quote:

Originally Posted by GuyC

If mine is anything to go by, you'd be better off trying to stream I'm a celebrity* over NMEA.

* or similar sh1te

Are you talking about N2k or 0183?

GuyC · 29 March 2022, 19:47

When I said 'mine' I was referring to my wife rather than my NMEA network. PD's idea was simpler however.

A1an · 29 March 2022, 19:48

Quote:

Originally Posted by GuyC

When I said 'mine' I was referring to my wife rather than my NMEA network. PD's idea was simpler however.

Ahh.. hearing you.

Orwell boy · 29 March 2022, 20:08

At the risk of being shot down (and i havnt proved it either way yet ) i have a garmin 750 with no sonar which i plan to nmea2k with engine data and a small 451s with transducer and depth and fish ,and have been told by the boffins i will be able to see sonar on the larger 750 as well as on the 451s .......i will be trying this within the next week as i too need to know ..........surely its just going to be a twin helm setup however both my units have inbuilt maps

A1an · 29 March 2022, 20:12

Quote:

Originally Posted by Orwell boy

At the risk of being shot down (and i havnt proved it either way yet ) i have a garmin 750 with no sonar which i plan to nmea2k with engine data and a small 451s with transducer and depth and fish ,and have been told by the boffins i will be able to see sonar on the larger 750 as well as on the 451s .......i will be trying this within the next week as i too need to know ..........surely its just going to be a twin helm setup however both my units have inbuilt maps

My bad, misread sonar for radar for some reason.

Orwell boy · 29 March 2022, 20:22

Sorry i see now ,Radar is over my head and not my requirement ,sorry for the misunderstanding .

Pikey Dave · 29 March 2022, 20:34

Quote:

Originally Posted by A1an

My bad, misread sonar for radar for some reason. Sonar over NMEA 2k won’t be a problem with either of those units.

You’ll be able to see depth over N2k as this is a simple data packet. I doubt very much (though happy to be proven wrong), that you’ll be able to share a sonar trace (picture) as this is a graphic. So your Slave unit will show digital depth in feet/metres/fathoms, but not the bottom trace.

Pikey Dave · 29 March 2022, 20:36

Quote:

Originally Posted by GuyC

When I said 'mine' I was referring to my wife rather than my NMEA network. PD's idea was simpler however.

Ahh! [emoji106]

A1an · 29 March 2022, 20:41

Quote:

Originally Posted by Orwell boy

Sorry i see now ,Radar is over my head and not my requirement ,sorry for the misunderstanding .

I originally thought I could run an Airmar transducer on one of my units and share with the other plotter but alas that’s not possible over NMEA. It also requires Ethernet. I can see a new “2nd” plotter with Ethernet on the horizon.

Orwell boy · 30 March 2022, 18:21

Quote:

Originally Posted by Pikey Dave

You’ll be able to see depth over N2k as this is a simple data packet. I doubt very much (though happy to be proven wrong), that you’ll be able to share a sonar trace (picture) as this is a graphic. So your Slave unit will show digital depth in feet/metres/fathoms, but not the bottom trace.

Yes I agree with these thoughts ,i think this is more likely to be the outcome !, but i will try it when it warms up a little and report ,busy with some boat upholstery at the moment

Orwell boy · 03 April 2022, 19:07

Quote:

Originally Posted by Orwell boy

Yes I agree with these thoughts ,i think this is more likely to be the outcome !, but i will try it when it warms up a little and report ,busy with some boat upholstery at the moment

Ok ,so gave it a go today and i think i need more guidance so will start my own request post .
appreciate any help ..thankyou