Adding a compass to my Raymarine Axiom/stng/st1 setup

[Mr Googler]

NMEA 2000, two pieces of equipment off one drop link?

Should work as I suggested fine (Daisy Chaining) your “network” is tiny!

Id make it all n2k personally and buy a st1 to n2k converter (which your current bar does anyway)……but you want to keep costs down ??

 

[Daverw]

I understand that the backbone cable is larger grade and keeps voltage drop lower than spurs, this will matter more on larger systems I would suppose so you may get away with it on this small system, but later as system grows, ie the ST ps need changing you may run into data issues, just like the RAN value on phone systems. Also the included tee may have different plug sizes to the white spur so the aximan data lead may not fit and I’m not sure you can get a spur to backbone adapter cable.

 

[Daverw]

Just to add, when I last did mods on my network bought tee and short backbone off for sale section on here for £10, worth keeping eye out also on eBay, many have bits from various kits left over

 

[DavidJ]

Just to add, when I last did mods on my network bought tee and short backbone off for sale section on here for £10, worth keeping eye out also on eBay, many have bits from various kits left over

Thanks good tip. Re your reference to REN, it seems Raymarine have a similar LEN value.

 

[DrSpock]

It’s still much simpler to add the ST60 Compass and flux gate which just connects to ST1 and gets broadcast via your STNG converter. The Garmin +-3 degrees of accuracy isn’t great either.

 

[Mr Googler]

It’s still much simpler to add the ST60 Compass and flux gate which just connects to ST1 and gets broadcast via your STNG converter. The Garmin +-3 degrees of accuracy isn’t great either.

Fair point

 

[DavidJ]

It’s still much simpler to add the ST60 Compass and flux gate which just connects to ST1 and gets broadcast via your STNG converter. The Garmin +-3 degrees of accuracy isn’t great either.

……….it does have its benefits in that I do understand that bit of it and just string it to my existing ST60 instruments.
Oh! decisions, decisions…..time for coffee

 

[DavidJ]

I’m just waiting now for someone to want to flog me an ST60 compass instrument (ST60+ would be better) with the fluxgate compass with a nice long lead.

 

[DavidJ]

Thanks to all who have contributed to this one and I really appreciate the extensive research that has clearly been done to help me. I’m certainly a lot wiser and I hope it’s been useful for others too.
Today is my last day in Spain for this year so I’ve got some time now to go into revision mode (read procrastination!) for project implementation next year.
Cheers

 

[DavidJ]

you can’t touch the blue ones on your bar. They are the resistance terminators.

I assume the middle plug on the bar is yellow (a st1 to stng converter?)

I think I sussed it though.

the axiom lead at the plotter is n2k….there is then a lead which converts the n2k plug to stng plug.

easiest option is to by a n2k T piece

Garmin NMEA2000 Tee Connector - 010-11078-00

Plug that in between the plotter n2k lead/plug the the converting lead . The heading sensor will plug straight into that new n2k T piece. I checked on line about terminator positioning but electrically speaking…..I don’t think it’s any different than if you had a spare port on the bar

in the future….you could add more n2k stuff by adding more n2k t pieces next to each other

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I’ve been having a parallel conversation with Raymarine. Bit like pulling teeth because they tend to give a standard answer without understanding the problem.
However I had an answer today re your diagram above which was a little unconventional taking a “T” from a spur.
(I had to tell them I was using a Raymarine AR200 and not a Garmin but the same potential issue)
……and they said “Yes you can do it that way”
So top marks @Mr Googler Thanks.
That said I’ve got lots of time and if a Raymarine ST60 Plus Compass came up, it would fit a nice space on my dash and I’d be tempted to go that way ref @DrSpock
Thanks again.

 

[Mr Googler]

I

I’ve been having a parallel conversation with Raymarine. Bit like pulling teeth because they tend to give a standard answer without understanding the problem.
However I had an answer today re your diagram above which was a little unconventional taking a “T” from a spur.
(I had to tell them I was using a Raymarine AR200 and not a Garmin but the same potential issue)
……and they said “Yes you can do it that way”
So top marks @Mr Googler Thanks.
That said I’ve got lots of time and if a Raymarine ST60 Plus Compass came up, it would fit a nice space on my dash and I’d be tempted to go that way ref @DrSpock
Thanks again.

I am nothing if not unconventional ?