RayMarine ST600x, SeaTalk and NMEA

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Feb 3, 2009
280
Freedom 40/40 Rio Dulce, Guatemala
Does anyone know if a RayMarine ST600x controller will convert the NMEA data that it receives via its NMEA input into SeaTalk or will it only display the data that it receives?

-- Geoff
 
Mar 20, 2007
500
Catalina 355 Kilmarnock, VA
It will accept some NMEA sentences as input that are then available to Seatalk-networked instruments, but the Raymarine autopilot controller will only output heading data at its NMEA port. The bridge resolves all of these issues (it is Raymarine Part # E85001).
 
Mar 20, 2007
500
Catalina 355 Kilmarnock, VA
Sorry, SD - didn't check your link to the Raymarine site. These bridges are available from several different discount suppliers on the Web for around $100.
 
Oct 22, 2008
3,502
- Telstar 28 Buzzards Bay
Some of the aftermarket bridges, like the ones that are NMEA multiplexers, have some issues with their Seatalk translation... so may or may not work for the intended purpose.

Sorry, SD - didn't check your link to the Raymarine site. These bridges are available from several different discount suppliers on the Web for around $100.
 
Jan 3, 2009
821
Marine Trader 34 Where Ever I am
geoff, The NMEA is input for a GPS to be used on a plotter and not sure it will input any other NMEA, What are you trying to do? Chuck
 
Feb 3, 2009
280
Freedom 40/40 Rio Dulce, Guatemala
geoff, The NMEA is input for a GPS to be used on a plotter and not sure it will input any other NMEA, What are you trying to do? Chuck
I'm not trying to do anything. I'm involved in a discussion about this in rec.boats.electronics and my statement was that the ST600x wouldn't convert the NMEA sentences into SeaTalk. Others disagree, so I was just trying to get some other opinions. I'm firmly in the camp that RayMarine won't give away functionality that they sell a box for! :)

Here's what I said in r.b.c:

I have a ST6001, and it handles the following sentences:

Information NMEA 0183 data
Course Over Ground VTG, RMC, RMA
Speed Over Ground VTG, RMC, RMA
Cross Track Error APB, APA, RMB, XTE
Bearing to Waypoint APB, BWR, BWC, RMB
Distance to Waypoint BWR, BWC, RMB
Waypoint Number APB, APA, BWR, BWC, RMB
Apparent Wind Speed VWR
Apparent Wind Angle VWR, MWV
Speed Through Water VHW
Depth DBT
Water Temperature MTW

Note: The ST6001+ only decodes the last four characters of waypoint names.
This means that the last four characters of long waypoint names must be
unique for the waypoint advance function to work.

I had hoped to use the ST6001 NMEA input to connect an NMEA based GPS
receiver, but it doesn't handle the GGA, GLL, GSA or GSL sentences...
My experience is that the list of supported sentence is all that the st6002
will support. It will not echo/translate them into SeaTalk sentences.
> My experience with Raymarine, about 10 years, has always been that
> NMEA data fed in will propagate along the Seatalk as well.
>
> Rick Morel

I also thought this, but was told by an electronics installer that the
st600x displays don't translate the NMEA data into SeaTalk. They only
display it. The course computer does provide the translation. I have no
direct experience with this, so I'd be interested in having this info
verified.
Anyhow, I was just making sure that I was on the right page...

Thanks, Geoff
 
Jun 6, 2006
6,990
currently boatless wishing Harrington Harbor North, MD
Well the manual does have how all this works

I know, I know, but if you are setting one up you might want to know this stuff.
The manual is available at RayMarine. There is also a special manual that comes with the unit that covers all the details of SeaTalk/mnea interfaces.

As I recall it takes NMEA in and spits it out to the seatalk net but does not take the seatalk date and convert it to NMEA.
 
Feb 3, 2009
280
Freedom 40/40 Rio Dulce, Guatemala
I know, I know, but if you are setting one up you might want to know this stuff.
The manual is available at RayMarine. There is also a special manual that comes with the unit that covers all the details of SeaTalk/mnea interfaces.

As I recall it takes NMEA in and spits it out to the seatalk net but does not take the seatalk date and convert it to NMEA.
Which manual are you talking about? The ST600x manual is quite confusing and doesn't begin to provide a clean answer to the question.
You can also use the SmartPilot with any navigator or wind instrument that transmits National Marine Electronics Association (NMEA) 0183 data. The SmartPilot control unit can display SeaTalk and NMEA instrument
data in a user-defined selection of data pages.

If you have equipment on your boat that transmits or receives NMEA 0183 data (e.g. GPS), you can connect this equipment to the SmartPilot. NMEA equipment can be connected in any combination of these ways:

• using the SmartPilot computer NMEA input/output
• using the NMEA input on the back of the SmartPilot controller. (Refer to the Controller handbook for NMEA data details)
• using the SeaTalk/NMEA interface (part number: E85001) to convert the NMEA data to SeaTalk data
I would claim that this is far from a clear statement as to what the ST600x controller does with NMEA data.

-- Geoff
 
Jan 3, 2009
821
Marine Trader 34 Where Ever I am
Geoff, It has also been my experience that the NMEA is not translated into Seatalk within the unit but displayed as NMEA. It will convert NMEA to Seatalk using the Raymarine interface. The units usually prioritze Seatalk over NMEA. If a GPS is connected to an autopilot it does see the GPS as NMEA. The GPS is treated differently from other Raymarine devices connected through Seatalk. That same GPS that is seen as NMEA connected to an autopilot is seen as Seatalk when connected to a Seatalk/NMEA interface. I don't know if any of this will help your discussion. Chuck
 
Sep 25, 2008
615
Morgan 415 Out Island Rogersville, AL
Geof,
The manuals are quite confusing indeed. Raymarine tech support is helpful when you actually get through to them. However, they all seem pissed to talk to you because of working long hours. They didn't even respond to my last email; but, I digress.

My computer talks just fine to my Ray Autopilot via NMEA. (I believe it is the same one as yours but not 100% sure.) It is my understanding that if you are going to have more than 1 NMEA device then you will need the NMEA network hub spoken of earlier in this thread.
 
Dec 25, 2008
1,580
catalina 310 Elk River
Apparently you can transmit your position over a VHF radio that is NEMA compatible. Is that correct?
If so the ST6001 A.P. course computer has a NEMA connection and is connected with SeaTalk to the controller. I have the ST60 suite of instruments and the C90W GPS/Chart all connected via SeaTalk. Will the course computer relay the GPS position to a NEMA connected device, thus acting as a SeaTalk to NEMA bridge?
 
Oct 22, 2008
3,502
- Telstar 28 Buzzards Bay
If you have a DSC capable radio, you need to connect the NMEA 0183 input on the radio to the NMEA 0183 output of your GPS. With the better DSC capable radios, you can also connect the NMEA 0183 output of the radio to a chartplotter's NMEA 0183 input and boats contacting you via DSC can be shown on your chartplotter, if your chartplotter supports this DSC feature.

Even Raymarine's own VHF radios require the connection to be via NMEA 0183, as SeaTalk is not supported.
Apparently you can transmit your position over a VHF radio that is NEMA compatible. Is that correct?
If so the ST6001 A.P. course computer has a NEMA connection and is connected with SeaTalk to the controller. I have the ST60 suite of instruments and the C90W GPS/Chart all connected via SeaTalk. Will the course computer relay the GPS position to a NEMA connected device, thus acting as a SeaTalk to NEMA bridge?
 
Dec 25, 2008
1,580
catalina 310 Elk River
Thanks for the info SD, looks like I will have to run more wire if I want to take advantage of this feature.
 
Jan 3, 2009
821
Marine Trader 34 Where Ever I am
SD, I have not seen a VHF that outputs NMEA. Can you recommend which ones have that capability? Most I have worked with only input for DSC emergency broadcast. Chuck
 
Oct 22, 2008
3,502
- Telstar 28 Buzzards Bay
The Icom M504 I have, as well as several other Icom models have that capability. I believe that Standard Horizon has a couple of models that do as well. Look in the owner's manual or installation manual and see if it has NMEA out and in... many have only NMEA in...

I'd recommend looking at the Icom M304. IIRC, it has both NMEA in and out, and is relatively reasonably priced. About $130 street.
 
May 7, 2004
252
Hunter 38 Little River, SC
What you're looking for is a VHF with class D DSC capability. NMEA in and out. Not all VHF units sold as DSC have this capability. You must double check the catalog description.
 
Oct 22, 2008
3,502
- Telstar 28 Buzzards Bay
Not all Class D DSC VHF radios have this feature. The Raymarine Ray54 VHF radio is described as:

The Ray54 includes equipment for Class “D” Digital Selective Calling
(DSC). DSC protocol is a globally applied system used to send and receive
digital calls. DSC uses a unique Maritime Mobile Service Identity (MMSI)
number to direct DSC calls directly to your radio, much like a telephone
number.When the DSC signal is received, the radio quickly switches over to
channel 70 and performs the corresponding operation.
But does not have the NMEA Out capabiity... I got rid of mine for that reason. :)

What you're looking for is a VHF with class D DSC capability. NMEA in and out. Not all VHF units sold as DSC have this capability. You must double check the catalog description.
 
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